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Mobile Application Development

5.0
6 reviews

We are a young, enthusiastic team of mobile developers based in Romania, dedicated to helping the Education Industry leverage the world of application development and simple to complex solution needs.

 
$5,000+
 
$25 - $49 / hr
 
10 - 49
 Founded
2013
Show all +
Cluj-Napoca, Romania
headquarters
  • Regele Ferdinand nr. 4
    Cluj-Napoca, CJ
    Romania
    +40745627529
other locations
  • 19C Trolley Square
    Wilmington, DE 19806
    United States
    +13024762290

Portfolio

Key clients: 

Fishisfast

Classlink

viihealth

 Center for the Collaborative Classroom

WiredAvenue

iPad App for Warehouse Logistics Tracking

An iPad app to handle processes in a logistics warehouse. The app is linked to a bluetooth barcode scanner and industrial scales and it's used both for receiving shipments and to ship stored items to customers.

WordWorks! iPad and Android tablet app

WordWorks! iOS and Android apps helps children learn how words are formed from vowel and syllable patterns, base words, suffixes, and prefixes.

ClassLink Analytics iPhone app

With ClassLink Analytics, school administrators have 24/7 access to login and web-app usage reports from their mobile devices.

ClassLink Remote Login iPhone app

ClassLink Remote Login is designed for anyone who wants to magically login to ClassLink from their mobile device, either for themselves, or for all the kids in their classroom.

Safelet iPhone app

Safelet is a 'safety bracelet' that lets you alert your family and friends when in danger.

ClassLink Launchpad iPhone app

ClassLink provides cloud-based technology products for the classroom education

Reviews

5.0
6 reviews
Sort by

Mobile App Dev for Education Technology Firm

"We are satisfied with their work, and we expect our partnership to continue for years to come."

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5.0

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
Confidential
 
Jan. 2014 - Ongoing
Project summary: 

X2 Mobile developed a mobile application to complement an existing web application for an education technology service provider.

The Reviewer
 
51-200 Employees
 
Clifton, NJ
Stanley Watts
CTO, ClassLink, Inc.
 
Verified
The Review
Feedback summary: 

X2 Mobile has exceeded expectations at every step of the engagement, ultimately delivering a valuable product that they continue to maintain. The staff features an involved CEO. The group communicates well and remains willing to discuss the app’s functionality.

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

I am the CTO of ClassLink, a web application that enables users to quickly sign in to multiple applications at once or access remote files on several devices.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire X2 Mobile?

We relied on X2 Mobile to develop our mobile application.

What were your goals for this project?

Because of the prevalence of mobile devices, we decided that ClassLink needed to develop a robust mobile presence. We hoped to build a mobile application that had similar functionality to our web application.

SOLUTION

How did you select this vendor?

Our team researched many different companies and asked them to develop a small prototype application. X2 Mobile exceeded our expectations with the prototype.

Describe the project in detail.

After we selected X2 Mobile, we had weekly meetings to coordinate the build. Once X2 Mobile understood the functional requirements and the APIs, they produced mockups and more substantial prototypes before finally executing the full build. We continue to have scheduled meetings to review our app’s functionality.

What was the team composition?

Initially, we worked with a project manager and a mobile developer. Our team has since grown to include the project manager, three mobile developers, and a full-time QA technician.

RESULTS & FEEDBACK

Can you share any outcomes from the project that demonstrate progress or success?

Within three months, X2 Mobile built and delivered our application. They currently maintain our application, which is used by thousands of daily users.

How effective was the workflow between your team and theirs?

The team communicates in English well. I’m appreciative of their willingness to continue having regular meetings with us even after the project’s completion.

What did you find most impressive about this company?

George (CEO, X2 Mobile) frequently communicates with our team and stays on top of the latest trends in mobile development. George has also visited our office several times in the past few years.

Are there any areas for improvement?

No. We are satisfied with their work, and we expect our partnership to continue for years to come.

5.0
Overall Score
  • 5.0 Scheduling
    ON TIME / DEADLINES
  • 5.0 Cost
    Value / within estimates
  • 5.0 Quality
    Service & deliverables
  • 5.0 NPS
    Willing to refer

Education Game App for Nonprofit

"X2 was able to comprehend what we were trying to accomplish, so they could make helpful recommendations." 

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5.0

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
 
Feb. - Apr. 2018
Project summary: 

X2 developed an educational game app for Android and iOS, utilizing both animation and audio. In addition to development responsibilities, they also contributed limited design work.

The Reviewer
 
51-200 Employees
 
Alameda, California
Tim Millen
CTO, Collaborative Classroom
 
Verified
The Review
Feedback summary: 

Pre-release reviews have been positive and X2 positioned themselves well to be assigned future projects. They used a hybrid communication style to provide constant accessibility and accurately internalized project goals. Their commitment to transparency was noted and appreciated.

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

I’m the CTO of Collaborative Classroom. We’re a nonprofit organization that improves children’s’ school experience by providing teachers with engaging curricula and ongoing professional development that supports their student’s academic, social, and emotional development.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire X2 Mobile?

We wanted supplemental apps to support the implementation of our English Language Arts program.

What were your goals for this project?

We wanted an app that would mimic the classroom experience but also had an interactive quality that would keep students’ attention.

SOLUTION

How did you select this vendor?

After extensive research, I chose X2 because of their experience with other projects in the U.S. educational space.

Describe the project in detail.

X2 handled all development for both Android and iOS, as well as some design responsibilities. They created four games that worked together to teach language, using audio and animation to get students interested in completing the exercise.

Can you share any outcomes from the project that demonstrate progress or success?

Although the game will debut to a broad audience this fall, reviews by initial customers have been great. We expect a very warm welcome with the wide release.

RESULTS & FEEDBACK

How effective was the workflow between your team and theirs?

Communication wise, weekly meetings plus email exchanges were enough for us. X2 was able to comprehend what we were trying to accomplish, so they could make helpful recommendations. This helped the project to finish quickly and on budget.

What did you find most impressive about this company?

Their ability to understand what we wanted to accomplish stood out to us. They have quick, excellent development skills and provided regular progress reviews.

Are there any areas for improvement?

We don’t have anything. We’re looking forward to starting a new project with X2.

5.0
Overall Score
  • 5.0 Scheduling
    ON TIME / DEADLINES
  • 5.0 Cost
    Value / within estimates
  • 5.0 Quality
    Service & deliverables
  • 5.0 NPS
    Willing to refer

App Dev Staff Augmentation for California Tech Company

“They’ve helped increase our productivity and overall work capacity.”

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5.0

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$50,000 to $199,999
 
May 2017 - Ongoing
Project summary: 

X2 Mobile supports iOS and Android development by providing resources as needed. They assign developers to augment an existing team and deliver complete mobile apps.

The Reviewer
 
1-10 Employees
 
San Diego, California
Partner, California Tech Company
 
Verified
The Review
Feedback summary: 

Demonstrating unparalleled flexibility, they’re capable of joining a project mid-development and quickly performing the tasks required. They often work late to accommodate a time zone difference. X2 Mobile are app development specialists and that’s evident in the quality of their deliverables.

A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.

BACKGROUND

Introduce your business and what you do there.

I’m a partner in a software development company.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with X2 Mobile?

We were looking for extra resources to support our mobile development projects.

SOLUTION

What was the scope of their involvement?

X2 Mobile allocates a portion of their staff to work alongside our team and expedite the development of several projects. We developed an original application before engaging them, but they help us release new versions for both iOS and Android. Our in-house team provides the designs and X2 Mobile solely assists development. In addition to their web APIs, the app also utilizes a lot of third-party integrations like Twilio and Stripe.

What is the team composition?

We work with George (Founder & CEO, X2 Mobile) and one project manager. We’ve also communicated with one Android developer and an iOS developer.

How did you come to work with X2 Mobile?

My business partner found them on Clutch. We decided to work with them based on their experience. They focus solely on mobile app development, so all of their developers are familiar with the tasks we need them to perform.

How much have you invested with them?

We’ve spent $50,000 so far.

What is the status of this engagement?

We started working together in May 2017 and the engagement is ongoing.

RESULTS & FEEDBACK

What evidence can you share that demonstrates the impact of the engagement?

We like working with them because they’re super flexible and can reliably supplement the developers we have in-house. Whenever we need to meet a deadline or are tied up in other projects, X2 Mobile contributes extra developers to work as needed. They’ve helped increase our productivity and overall work capacity.

How did X2 Mobile perform from a project management standpoint?

We’re located in different time zones, but they do an excellent job of working late to overlap with our working hours. We use Slack and Skype to communicate. They’re very well organized.

What did you find most impressive about them?

X2 Mobile’s biggest strength is mobile development. They don’t focus on a lot of different technologies and that makes them experts at what they do. We’ve engaged with other firms that try to work with any technology, but they often don’t have the expertise to adequately deliver. We also appreciate X2 Mobile’s ability to quickly integrate with an existing project and provide services as needed. Additionally, George traveled to our offices to meet face-to-face and discuss our needs. It’s hard to ask for much more than that.

Do you have any advice for potential customers?

Have some documentation and designs ready for them. We hand over the exact specifications for what we need and that makes the process reasonably seamless.

5.0
Overall Score
  • 5.0 Scheduling
    ON TIME / DEADLINES
  • 5.0 Cost
    Value / within estimates
  • 5.0 Quality
    Service & deliverables
  • 5.0 NPS
    Willing to refer

App Development for Consumer Products Company

"Even with some hiccups in our relationship, they are always there when I need them most."

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5.0

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$50,000 to $199,999
 
Apr. 2018 - Ongoing
Project summary: 

X2 Mobile stabilized and redesigned substandard iOS and Android apps. They currently provide development for additional apps.

The Reviewer
 
11-50 Employees
 
Amsterdam, Netherlands
Herman Veenstra
CEO, safelet bv
 
Verified
The Review
Feedback summary: 

The apps X2 Mobile redesigned have smooth UX/UI, clean code, and are functional stable. X2's ability to deliver on promises within budget and on time is impressive. They easily foresee technical issues and premediate solutions. 

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

Safelet BV is a manufacturer of personal safety products that allow users to notify friends and family where they are during an emergency.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire X2 Mobile?

We hired X2 Mobile to take over a project that had turned into a nightmare. Our Android and iOS apps were originally developed by another company for a fixed fee. This company cut so many corners to fit our budget that their final apps were fundamentally unstable.

What were your goals for this project?

We wanted first to improve and stabilize existing, unstable apps. Second, we wanted to work out a long-term plan to rebuild the app step by step to fit within our available budget.

SOLUTION

How did you select this vendor?

We found X2 Mobile by doing an online search for companies in Romania. Romania has a great high-tech culture at an affordable cost which makes it an ideal location to find a partner for start-ups.

The X2 Mobile director met with us in Amsterdam. He immediately gave us peace-of-mind when we described the situation and he showed us the ways he could help.

Describe the project in detail.

X2 analyzed existing code and stabilized the app before making more fundamental changes. Their team used an oversight structure to inform us through every step. They also document the apps' coding so we could always take control of the project or bring it to another company. Then, the apps were redesigned and rebuilt within a period of six months. X2 is currently working on multiple iOS and Android products for our clients.

What was the team composition?

They provide a dedicated iOS and Android developer, and an account manager.

RESULTS & FEEDBACK

Can you share any outcomes from the project that demonstrate progress or success?

X2 Mobile stabilized our apps within two weeks. The apps have clear and excellent UI/UX. Their clean code made sure the apps were stable and running smoothly.

How effective was the workflow between your team and theirs?

We conduct weekly calls to communicate. We also use Slack and GitHub to keep track of items and their status. We schedule all new requests in ZenHub. 

What did you find most impressive about this company?

We are impressed by their ability to keep their promises on delivering on time and within budget. They also impress us with the availability of our account manager outside business hours.

Even with some hiccups in our relationship, they are always there when I need them most—even if they have to work extra hours.

Whenever a new OS release causes issues with the iOS or Android apps, they always create solutions before customers experience problems. They are a great business partner and I will continue to work with them.

5.0
Overall Score They are great developers and communicate well. They delivered on time and within budget.
  • 5.0 Scheduling
    ON TIME / DEADLINES
    We scheduled requests through ZenHub. Once per week, we discussed the schedule for the next week and evaluated what was done the previous week.
  • 5.0 Cost
    Value / within estimates
    They provided great quality for half of what we would've paid in Western Europe.
  • 5.0 Quality
    Service & deliverables
    The app has very clear and great UI/UX. It is stable as a rock with clean, well-documented code.
  • 5.0 NPS
    Willing to refer
    I have already referred other companies to X2 mobile when I heard that they were dissatisfied with their current vendor.

Custom iPad App for Warehouse Logistics Tracking

"I’d especially recommend them to anyone in the startup world who may not have a fully-formed vision."

See More

5.0

Quality: 
5.0
Schedule: 
4.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$50,000 to $199,999
 
Apr. 2013 - Ongoing
Project summary: 

X2 Mobile was brought into to improve the workflows in a parcel distribution site and to make information accessible via tablet to employees on the go within the facility.

The Reviewer
 
51-200 Employees
 
Delaware
Product Development Head, Parcel Carrier
 
Verified
The Review
Feedback summary: 

X2's leadership has been heavily involved in the project, especially in the initial requirements gathering, which laid the foundation for a successful long-term partnership.

A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.

BACKGROUND

Introduce your business and what you do there.

I’m the head of product development for a parcel forwarding company. I oversee most of the development for our web app and our internal iPad app.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with X2 Mobile?

Initially, we needed a web app for internal processes in our warehouse. Our warehouse employees had to be able to move around while still interacting with our server. We had previously just used computers and a browser, but we decided that we needed a more portable solution. We only had a general idea of what we wanted so we needed to engage a firm who could help up make that idea a reality.

SOLUTION

What was the scope of their involvement?

X2 Mobile built our app from scratch a couple years ago. They’ve made improvements to it since then. We reviewed out-of-the-box solutions, but they didn’t fit our specific needs. We honestly weren’t sure what the best solution would be, so X2 guided us into something that made sense on an iPad. We knew we were going to only use iPads, so they developed the app using Xcode. More recently, they’ve also developed a couple of stand-alone apps for us in Swift, which is leaner and quicker to code. The Xcode app took several months to develop, whereas the Swift apps each only took a month to go from conception to a working version.

X2 Mobile also assisted us in finding barcode scanners that met our requirements, altering them to suit our purpose. They built us a custom Arduino interface for the scales and cameras we use. In short, they’ve been able to modify devices in the warehouse, enabling us to more efficiently use them within our proprietary software.

When the relationship began, we were only working with George [Purusniuc, co-founder]. Over time, we’ve worked with three different developers who have been really good as well. One developer gets assigned to us at a time, and the one we have now is quick and able to critically analyze issues.

How did you come to work with X2 Mobile?

I found their profile on one of the freelance sites. I was looking for a firm who was willing to learn details about what we do. George at X2 took the time to ask smart questions about our business and our processes.

How much have you invested with X2 Mobile?

Over the course of our relationship, we’ve invested over $200,000. Last year, we paid around $60,000–$80,000 for their services.

What is the status of this engagement?

We started working together in April 2013. They continue to support the app with updates and improvements. After the first six months, we realized that we wanted a long-term relationship with X2, so now we essentially look at them like a salaried employee.

RESULTS & FEEDBACK

Could you share any evidence that would demonstrate the productivity, quality of work, or the impact of the engagement?

I haven’t tracked specific metrics. However, I appreciate that they’re very responsive to production issues or time-sensitive situations. George is really good at spotting issues in the way we plan things out. He’s able to foresee any resulting problems in other parts of the app and advise me on a better direction.

How did X2 Mobile perform from a project management standpoint?

We use GitHub Issues for all our server-side project tracking and I brought that over to the iOS side as well. I’ll create milestones and hand them over to X2. They charge us an hourly rate and give us a breakdown of the hours on a weekly basis. We communicate using Slack and GitHub Issues. We write out the full explanation of an issue and have a direct discussion about changes on the issue itself. We use Slack for more conversational communication on smaller details. When we have bugs or issues, X2 is good at responding quickly and determining how they can fix those.

What did you find most impressive about X2 Mobile?

They’re very responsive. There is a time zone difference so we’ve had to contact them well after business hours. Despite this, they were quick to answer a question or spring into action when necessary.

Are there any areas X2 Mobile could improve?

They could improve the way they communicate expected timelines to us. There have been times when I wasn’t as clear as I should have been regarding project management and they ended up working on projects that weren’t high priority to me. I take some responsibility for that so I can’t fault them too much.

5.0
Overall Score George and the team at X2 have always been very friendly, professional, and polite.
  • 4.0 Scheduling
    ON TIME / DEADLINES
    Some projects have taken much longer than we anticipated.
  • 5.0 Cost
    Value / within estimates
  • 5.0 Quality
    Service & deliverables
    They either deliver the product as requested or a version of it that makes more sense.
  • 5.0 NPS
    Willing to refer
    I’d especially recommend them to anyone in the startup world who may not have a fully-formed vision.

iPad App Stability Enhancements for Media Player

"Before hiring X2 Mobile, we had a 40% crash rate, but we've come to have a 98% rate of successful sessions."

See More

5.0

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
Less than $10,000
 
May 2016 - Ongoing
Project summary: 

Prior to X2 Mobile's intervention in the project, the client's iPad app had major stability issues and was lacking desirable features.

The Reviewer
 
1-10 Employees
 
Naperville, Illinois
Paul Eident
Aslan Interactive
 
Verified
The Review
Feedback summary: 

The client was very happy with the improved app performance and continues to look to X2 for development of new features. X2 has gone above and beyond by proactively making recommendations in addition to properly executing their assigned objectives.

A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.

BACKGROUND

Introduce your business and what you do there.

We are web consultants building custom web and mobile apps for a variety of clients. I am a co-owner of the company. My partner and I are responsible for sales and high-level project management.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with X2 Mobile?

We had hired another company for the initial build of an iOS app, and have involved several parties for its development. Those companies were either unavailable or didn't perform well, so we started looking for another company which could fix some issues and add new features to the app.

SOLUTION

What was the scope of their involvement?

We've hired X2 Mobile a couple of times, for work on the same iPad application. X2 Mobile took over the development, with our company managing the project on behalf of the client. X2 Mobile made some changes, increasing the app's stability, and added new features. We provided mockups of what we were looking for, as well as high-level requirements.

Our client is one of the largest publishers of liturgical music for Catholic churches. They have several hymnals which needed to be displayed on an iPad. The app allows users to download material, turn pages, create lists of hymns to be played, listen to sample music, make annotations, and share lists with other people.

How did you come to work with X2 Mobile?

I found X2 Mobile on Upwork. X2 Mobile seemed professional, had great ratings, and were responsive during our first contact. We needed someone right away, and X2 Mobile was available immediately.

How much have you invested with X2 Mobile?

The cost of X2 Mobile's work has been close to $10,000. We pay X2 Mobile through Upwork.

What is the status of this engagement?

We started working with X2 Mobile in April 2016. X2 Mobile is currently our go-to company for any maintenance or changes to the app. We're currently putting together the set of requirements for a new set of revisions.

RESULTS & FEEDBACK

Could you share any evidence that would demonstrate the productivity, quality of work, or the impact of the engagement?

X2 Mobile has been able to fix stability issues and make the app perform much better than before. Before hiring X2 Mobile, we had a 40% crash rate, but we've come to have a 98% rate of successful sessions.

How did X2 Mobile perform from a project management standpoint?

We've used Skype and Teamwork, which was our main project management tool at the time. We created an account for X2 Mobile's team and posted tasks and other details. X2 Mobile received alerts for any new requests and responded within the tool. We outsource all our projects to other companies and freelancers throughout the world and try to integrate all of them into a single tool. X2 Mobile was very responsive, more so than we were. X2 Mobile often had to wait for us to get back to a client or come up with more changes.

X2 Mobile's team is based in Romania. X2 Mobile's principal visited us in Chicago in the fall of 2016. It was nice to meet him personally.

What did you find most impressive about X2 Mobile?

Most of our freelancers are given freedom to give recommendations and make changes as they see fit. X2 Mobile has been very good at working with us, instead of only taking care of what we ask them to do. X2 Mobile has offered great suggestions on how the app could be improved.

Are there any areas X2 Mobile could improve?

There is nothing that I can think of.

5.0
Overall Score
  • 5.0 Scheduling
    ON TIME / DEADLINES
    X2 Mobile is very responsive and delivers on time.
  • 5.0 Cost
    Value / within estimates
  • 5.0 Quality
    Service & deliverables
    I was very pleased with X2 Mobile and look forward to working with them again.
  • 5.0 NPS
    Willing to refer