Top Class Web & Mobile Apps Development

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"Dependable and easygoing, the whole XOOR team have been a pleasure to work with. Their developers are talented and get the job done on time and on-budget."​ (Marc Fischer, CEO @ DogTown Media)

 

Get things done with an affordable team of World Class software developers. Let us take your projects to the next level with the latest, state-of-the-art technology.

Cost Efficient. There are no hidden costs. Our hourly rate is fixed and the total price of your project will only depend on the agreed hours estimate. Our contracts are flexible so we can scale your team as needed.

Teammates. Once our partnership has started, we’ll work along side your team during the entire length of the project. We strongly believe this is the only road leading to a successful outcome.

Agile Players. We love being Agile. All our team members have experience working in agile environments. New to agile? We will be happy to introduce you and your team to this working methodology.

 

 
$5,000+
 
$25 - $49 / hr
 
2 - 9
 Founded
2017
Show all +
Mar del Plata, Argentina
headquarters
  • Mar del Plata, B
    Argentina

Portfolio

Key clients: 

DogTown Media, OverOps, CodersClan, Boundary Digital, Plunge, Hilo.io

Reviews

Sort by

Software & Web Dev for Cryptocurrency Social Network

“They're very committed to our project and make sure we always have the resources we need.”

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
Confidential
 
Jul. 2018 - Ongoing
Project summary: 

XOOR is building a platform that will help users understand cryptocurrency and blockchain. Using a variety of technologies, XOOR is managing both front- and backend development.

The Reviewer
 
San Francisco, California
CEO, Crytocurrency Ed Firm
 
Verified
The Review
Feedback summary: 

XOOR has set the project up for success and is expected to exceed the original deadline. They go above and beyond to meet all needs, while their expertise, professionalism, and exceptional communication skills make them stand out among competitors.

BACKGROUND

Introduce your business and what you do there.

I'm the CEO of a cryptocurrency education firm.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with XOOR?

We're building a platform to onboard users into the crypto ecosystem. We needed a development team to help us.

SOLUTION

What was the scope of their involvement?

They're using PHP on the backend and React on the frontend to build a platform for us. They're also helping transition our website to WordPress. We want to make it easy and engaging for our customers to understand cryptocurrency and blockchain. We also want to be able to address any questions about cryptocurrency within the platform.

What is the team composition?

We work with two developers and their CEO, who is managing the entire process.

How did you come to work with XOOR?

They were recommended to me by a colleague. We were transitioning from another development team, so we needed to find new development resources fairly quickly. It was important for us to find a company that was in the same time zone and could become an extension of our team. I talked to about 10–15 vendors and XOOR was the best fit for us.

What is the status of this engagement?

We started working with them in July 2018 and the relationship is ongoing.

RESULTS & FEEDBACK

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

We're exceeding our expected deadline. It's a collaborative effort and we have a very good working relationship with them. Their CEO knows how to manage his team effectively and goes above and beyond to make sure they meet all of our needs. Also, they've provided valuable recommendations and guidance on what technologies we should explore in the future.

How did XOOR perform from a project management standpoint?

They're very responsive and have exceptional communication skills. Their entire team is fluent in English, so we haven’t had any issues. They have a ticketing system, and we also use Slack to keep in touch.

What did you find most impressive about them?

They're very committed to our project and make sure we always have the resources we need. (When someone goes on vacation, they always provide another team member based on our needs.) They've made our transition to a new development team very smooth.

Are there any areas they could improve?

No. They have an incredible team. We had a lot of challenges with our previous vendor, but XOOR has been perfect.

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

Web Development for Software Analytics Company

“XOOR is quick to resolve issues, available for questions, and genuinely care about the work they do for us.”

Quality: 
4.0
Schedule: 
3.0
Cost: 
4.0
Willing to refer: 
5.0
The Project
 
Confidential
Project summary: 

XOOR updated a software analytic company’s website and blog with new animated content and new plug-ins. The team continues to guide development efforts and maintain the site’s support center.

The Reviewer
 
11-50 Employees
 
Tel Aviv, Israel
Lead Designer, Software Analytics Company
 
Verified
The Review
Feedback summary: 

The new website increased engagement and received praise from users. XOOR thoroughly explained each step in the project while consistently giving feedback to optimize performance. The team is responsive to communication and quick to address any concerns.

BACKGROUND

Introduce your business and what you do there.

I am the lead UI/UX designer at a software analytics company. We are based in Israel with additional offices in San Francisco and New York. Our product helps developers fix bugs and handle production events in real time.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with XOOR?

We wanted an attentive and open-minded development partner with the appropriate capabilities to quickly revamp our website. Additionally, we were looking for an agency that spoke our same language.

SOLUTION

What was the scope of their involvement?

XOOR helped us update our website and WordPress blog using CCS, HTML, and JavaScript and integrated necessary Zendesk software. The team also designed and produced animated content, additional plug-ins, and they continue to maintain our support center.

What is the team composition?

I mainly worked with the founder, a full-stack developer for the blog, and a developer for the website.

How did you come to work with XOOR?

Our company had worked with XOOR’s founder in the past. We were happy with their delivered quality and price, so we didn’t look elsewhere.

What is the status of this engagement?

We started working together in 2016 and the partnership is ongoing.

RESULTS & FEEDBACK

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

Our customers reacted positively and we saw an increase in engagement on our mobile site. XOOR is responsible for replacing our unresponsive screens with fully functioning interfaces. The team patiently explained how each element worked and consistently provided valuable feedback and suggestions.

How did XOOR perform from a project management standpoint?

We handled general communication via Slack and took care of technical issues through GitHub. The workflow was governed by scheduled timeframes for each task. They were accommodating of our needs and requirements throughout the project.

What did you find most impressive about them?

As a startup, their team was exactly what we needed for this project. XOOR is quick to resolve issues, available for questions, and genuinely care about the work they do for us.

Are there any areas they could improve?

The time difference can be hard to manage.

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

Multiple Web Developments for Branding & Design Firm

“Their communication is excellent and they’re very responsive.”

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
 
Oct. 2017 - Ongoing
Project summary: 

Using React, Node.js, MongoDB, and Amazon Web Services, XOOR developed the front- and backend of a web application. The app is a platform for real estate agents and clients for scheduling and document storage.

The Reviewer
 
1-10 Employees
 
Los Angeles, California
Co-founder, Branding and Design Firm
 
Verified
The Review
Feedback summary: 

XOOR excels in delivering the product as initially envisioned accompanied by a hassle-free experience. They offer strong expertise in platform development and produce clean, bug-free code. Their pricing is affordable and their services present a great value.

BACKGROUND

Introduce your business and what you do there.

I’m the co-founder of a branding and design firm. We do both branding and digital product design. We also do development once we have everything designed.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with XOOR?

We needed help with multiple web developments for our firm.

SOLUTION

What was the scope of their involvement?

Recently, we worked on a web app project which is a transaction management platform for real estate agents. There are a lot of documents and scheduling with any real estate transaction, and we are creating an app similar to Dropbox for real estate agents and clients. It’s a hub where they can have their information, scheduling, and documents that need signatures. XOOR is building both the frontend and backend. On the frontend, they’re using React. On the backend, they’re using Node.js accompanied by a MongoDB and Amazon Web Services.

We’ve done multiple projects with them, which are normally web-based solutions using WordPress, React Native, and a number of other technologies. We are doing a React Native mobile app with them currently, which will be iOS and Android.

What is the team composition?

We work with three developers.

How did you come to work with XOOR?

They were recommended to us by someone I know at a similar company. I looked at about four other development companies. They’re a good fit because their CTO has a very strong background in building robust tech platforms. I knew I could trust him. He speaks intelligently about technologies. Also, it’s nice having someone who is close to my time zone and is affordably priced. They’re always flexible whenever we need someone.

How much have you invested in them?

We invested over $20,000, which will probably increase.

What is the status of this engagement?

We began working with them in October 2017 and it’s an ongoing collaboration.

RESULTS & FEEDBACK

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

The code has come back very clean. There haven’t been any major bugs or hurdles. Their work and animations are very close to the design we delivered to them. We have happy clients. We haven’t had any hiccups or compromises along the way. It’s been pretty straightforward with what was agreed upon in the initial contract.

How did XOOR perform from a project management standpoint?

We share a Slack channel which allows for ongoing communication. Whenever we work with them on a project, a developer and a project manager make sure deadlines are met, the assets are gathered, and communication is flowing. Their communication is excellent and they’re very responsive.

What did you find most impressive about them?

I’m most impressed with their responsiveness. They’re willing to scope out projects and do upfront work to see if it’s a good fit to work on projects that might come their way.

One of the nice things is that you don’t have to give them a lot of notes once you have handed them a design. They are good at getting it right. Having built a lot of platforms, it can be a frustration that designers run into, but with XOOR, we don’t need to give them too much feedback.

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

Ongoing Development for Global Coders Network

“Along with proficient coding skills, XOOR exhibited friendliness, professional conduct, and great communication skills.”

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$50,000 to $199,999
 
July 2015 - Ongoing
Project summary: 

As a long-term development partner, XOOR designs, programs, and deploys challenging deliverables. Using technology like Angular, Java, and Node. Many projects include substantial, complex databases.

The Reviewer
 
11-50 Employees
 
Palo Alto, CA
Dror Cohen
CEO, CodersClan
 
Verified
The Review
Feedback summary: 

XOOR’s high-level communication skills and organized project coordination via JIRA help hit every deadline and keep the client informed. Programming expertise yields flawless deliverables that renew contracts upon delivery. End products are paired with reliable customer service after deployment.

BACKGROUND

Please describe your company and your position there.

I'm the CEO of CodersClan. We make outsourcing software easier through our curated, global network of coders.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire XOOR?

We engaged XOOR for various programming services. Over the course of our engagement, they’ve worked on tasks that involve Java, Node, and Angular. Our projects tend to feature large databases that have a high level of complexity.

What were your goals for this project?

We hoped that streamlining the development process from every side would manifest in a highly functional app that performed well when in use.

SOLUTION

How did you select this vendor?

I've gotten to know XOOR’s team through our coder platform at CodersClan.

Can you go into detail about the services they provided and the scope of the project?

XOOR has supported our team with numerous facets of development, management, and support service. They help us formulate project scope, and sometimes even design of all of the deliverables a project requires. After delivering the final products, their end-to-end support includes deployment and corresponding with our customers.

What was the team composition?

We worked with a team of several developers that XOOR assembled.  As our project progressed, we scale the number of resources we work with. Our outsourced team has grown over time.

RESULTS & FEEDBACK

Can you share any information that demonstrates the impact that this project has had on your business?

XOOR has designed, built, and implemented numerous strong deliverables. The great customer satisfaction these deliverables elicit has led to consistent contract renewals.

How was project management arranged and how effective was it?

We've been coordinating work through JIRA.  XOOR clearly communicates updates and progress to help us meet deadlines without any issues.

What did you find most impressive about this company?

Along with proficient coding skills, XOOR exhibited friendliness, professional conduct, and great communication skills.

Are there any areas where they can improve?

There are none that come to mind.

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

Multiple Developments for Mobile App Dev Agency

“All the projects they've worked on have been very successful.”

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
Confidential
 
Aug. 2017
Project summary: 

XOOR provides additional website and app development support for various projects as needed.

The Reviewer
 
11-50 Employees
 
Venice Beach, California
Director of Operations, Mobile App Development Agency
 
Verified
The Review
Feedback summary: 

XOOR continues to provide top-quality development support that's received a tremendous amount of positive feedback from internal teams and clients alike. Their team is responsive and accessible, making communicating and collaborating on projects seamless. They're also friendly and approachable all around.

BACKGROUND

Introduce your business and what you do there.

I'm the director of operations for an app development agency.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with XOOR?

We needed additional development resources for a number of different projects.

SOLUTION

What was the scope of their involvement?

XOOR provides additional development support for apps and websites as needed, depending on what projects we're working on.

What is the team composition?

We work with anywhere from one to six developers at a time, as well as Mauricio (Founder, XOOR).

How did you come to work with XOOR?

I'm not sure how we found them, but I believe our CEO reached out to them. Despite being located in Argentina, their team is great at communicating and easy to work with, so we've decided to continue to work with them on more projects. 

What is the status of this engagement?

We've been working with them since August 2017 and the relationship is ongoing.

RESULTS & FEEDBACK

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

We're happy with all of the high-quality work they've done for us thus far. We've received nothing but positive feedback both from our internal team and clients alike. All the projects they've worked on have been very successful.

How did XOOR perform from a project management standpoint?

Despite the fact that he just had a baby, Maurcio has continued to be very responsive throughout the engagement. He and his team are great to work to with all around. They make themselves available to us when we need them regardless of the time difference, and we communicate mostly through Slack and Jira.

What did you find most impressive about them?

They're very accessible—it doesn't even feel like they're all the way in Argentina. We also find their team to be quite nice and approachable overall.

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

Web Dev for Software Dev Libraries Project

“I have hired them again for numerous projects since.”

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
 
May 2017 - Aug. 2017
Project summary: 

XOOR built an API to help customers search for GitHub code and repositories of interest. They designed both the frontend and backend. They used MongoDB, GitHub API, JSON, REST, Node.js, Jade, CSS, and HTML.

The Reviewer
 
1-10 Employees
 
Los Angeles, California
CTO, Incredible Code
 
Verified
The Review
Feedback summary: 

XOOR easily understood the complexity of the project and delivered high-quality coding. Their customer service is phenomenal, offering excellent project management and friendly communication. They’re a dependable and talented team, and they provide strong and affordable value.

BACKGROUND

Introduce your business and what you do there.

I’m the CTO of Incredible Code, which was a site that allowed people to find GitHub repositories that had interesting and relevant code in them.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with XOOR?

I needed web development for this project.

SOLUTION

What was the scope of their involvement?

They built a web backend API which interfaced with GitHub. It pulled information from GitHub and then ranked and rated the content on it, which was pretty complicated. There was a web frontend and clients would come in and sign up. They entered in the type of code they were interested in and the type of repositories, and then it looked at the backend database and gave them suggestions.

They used MongoDB and GitHub API, and the API was JSON and REST. Node.js was the backend, and the frontend was Jade, which is a templating language that we used because it renders in HTML, which search engines really like. They did some SEO work. They also used CSS and HTML.

What is the team composition?

We worked with Mauricio (Founder, XOOR), who is awesome, and there was one other person working on this project.

How did you come to work with XOOR?

I found them through a Google search. I was looking for offshore providers as everything is more expensive in the States. I interviewed a few people, but I selected them because they can handle really complicated things. I have worked with a lot of developers over the years, and sometimes you have to really explain things and provide a lot of documentation, whereas XOOR understood easily it and did it.

How much have you invested in them?

We spent around $25,000 on this project.

What is the status of this engagement?

We worked together on this project from May–August 2017.

RESULTS & FEEDBACK

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

The communication was awesome. Although the end result didn’t turn out as I am too busy to do the work to keep it up to date, the code was solid. I am a coder too, and everything they did worked really well and was well thought-out and well structured. It was quick and responsive. After we did some QA, there weren’t any bugs and it was pretty seamless.

Over the years, I have worked with a lot of web developers, and I really like their team. I can give them what I want to do, and they go ahead and do it. I don’t have to manage them. I have hired them again for numerous projects since.

How did XOOR perform from a project management standpoint?

The communication was great. They were always available to chat, and from the beginning, it was a good fit for us. They insisted we use Jira. Mauricio is really organized, and we set everything out in tickets. I laid out what we needed to do, and he communicated through Slack or within the Jira tickets. He improved my project management and made it easy to work with them.

What did you find most impressive about them?

Their friendliness and communication are the most impressive. Mauricio let me know when he was going on vacation for a few days and made sure I knew where he was. I consider us friends now. We communicate on a day-to-day basis as friends, which is the something that is above the norm. They are incredibly easy to work with, very friendly, and reliable.

5.0
Overall Score I keep going back to them to get things done. They are solid and reliable people.
  • 5.0 Scheduling
    ON TIME / DEADLINES
    They chased me to try and get things done.
  • 5.0 Cost
    Value / within estimates
    It was way more affordable than doing it in the States. They’re not inexpensive, but they are really competitive.
  • 5.0 Quality
    Service & deliverables
    They are responsive and always available. They are awesome.
  • 5.0 NPS
    Willing to refer
    I have already recommended them many times.