Mobile app partner for leading software companies

DECODE is a professional services firm specialized in developing mobile apps for iOS and Android - native and React Native - a vibrant group of highly skilled engineers, with years of experience in various domains, such as telco, fintech, IoT, etc.

We are a mobile software consultancy, developing tailor-made apps for Android and iOS.
We add value by creativity, engineering expertise and reliable delivery.
We build long-term partnerships, working with our customers, not for them.
The way we work is by providing self-managed, dedicated teams.

 
$25,000+
 
$25 - $49 / hr
 
10 - 49
 Founded
2012
Show all +
Zagreb, Croatia
headquarters

Portfolio

Key clients: 

Metaswith - DECODE is the key partner for their unified communication mobile clients Assecco - they handpicked DECODE as a partner on their mobile banking app development project Kiën - We developed sleek native Android and iOS apps that allow users to control the Kiën lights in their home according to their mood

Reviews

Sort by

UI/UX Design for Identity App

"They were an excellent bunch to work with!"

Quality: 
5.0
Schedule: 
5.0
Cost: 
4.5
Willing to refer: 
5.0
The Project
 
$50,000 to $199,999
 
Feb. 2017 - Jan. 2018
Project summary: 

DECODE HQ provided UI/UX design services for multiple native mobile apps. Working with Android and iOS, they utilized backend services and design skills to build a working prototype. 

The Reviewer
 
1-10 Employees
 
London, United Kingdom
William Skannerup
Founder, Gentoo App & VeridenKey
 
Verified
The Review
Feedback summary: 

DECODE HQ successfully worked on multiple releases of the product. Their team had an efficient and communicative remote work process. The creativity and ingenuity displayed by the vendor were extremely impressive. They took the lead on design. 

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

Gentoo App was founded by William Skannerup, with Andrea Rumignani and Tim Evans joining later. Gentoo App was built to solve everyone’s pain of keeping contact details of others up to date. With so many ways of staying in contact, phone numbers, emails, addresses, social media tags can get complicated to keep organised. Gentoo App aimed to simplifying this by allowing the user to update their details on their own profile, and share the update automatically with all of their contacts. This later morphed into VeridenKey, and was a leading blockchain identity company based out of London.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire DECODE HQ?

We hired DECODE to create UI/UX, graphic design elements, app prototype, a working app for iOS and Android, as well as all the necessary services required for our trusted digital identity application and system.

What were your goals for this project?

Our idea was to create a mobile app and a system that syncs all your contacts across contact apps, social networks, different devices you might use. The goal was to onboard at least 100.000 user within first few months. This project had a paramount impact on our business, as the whole company was based around the app.

SOLUTION

How did you select this vendor?

DECODE came in with high references from our business contacts and we went through a detailed review process involving CTO. We picked DECODE because they demonstrated top technical expertise as well as the capability to deliver on multiple tracks: UI/UX design, app prototype, Android and iOS app, as well as backend services, which covered all of our requirements.

Describe the project in detail.

VeridenKey provides a verified identity that represents you, both in the “real” and “virtual” world. An identity with you in control of your data—authenticated by government and non-goverment partners on the decentralised ledger—and a digital identity key that cannot be taken away from you. DECODE was in charge of the complete design and development process, including wireframing, storyboarding, creating mockups & graphical design elements, prototyping, software design, implementation, and testing for Android, iOS and the services. The apps were native and the server-side was implemented in Python Django framework.

What was the team composition?

DECODE had a team of 4 working on the project: 1 developer for each mobile platform, 1 for the backend and 1 in charge of QA. One of the developers assumed the team lead role and was our primary contact.

RESULTS & FEEDBACK

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

We had 3 major releases in the project - the 1st one was focused on UI/UX design, GUI artifacts and the screen flows. The second was the iOS app and the backend and the 3rd was around Android app. Apps were shared as mature beta.

How effective was the workflow between your team and theirs?

Although remote, DECODE’s team felt like at hand. We had regular weekly sync video-meetings and communicated on a daily basis via Slack, InVision and Jira. Developers were very standalone in their work and have demonstrated in-depth engineering and other knowledge. We were able to communicate openly and freely, sharing feedback and ideas with no problems. We also visited them in Zagreb in few occasions where we had workshops and we brainstormed about next steps.

What did you find most impressive about this company?

What struck us the most with DECODE is the versatility of their engineers who were able to tackle every problem and respond to every challenge with diligence and persistence. Their UI/UX designer showed extraordinary creativity and was a source of excellent ideas.

Are there any areas for improvement?

No, they were an excellent bunch to work with!

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

App Development for Financial SaaS Platform

"We were impressed by DECODE’s technical expertise and in-depth knowledge of mobile app development."

Quality: 
5.0
Schedule: 
5.0
Cost: 
4.5
Willing to refer: 
5.0
The Project
 
$50,000 to $199,999
 
July 2019 - Apr. 2020
Project summary: 

DECODE HQ developed mobile apps for a financial SaaS company. The team built both iOS and Android versions of the platforms, adjusting and tweaking modules for international fiscal needs.

The Reviewer
 
11-50 Employees
 
Zagreb, Croatia
Tonči Damjanić
CTO, Bizzon
 
Verified
The Review
Feedback summary: 

The app was launched in a timely manner and features all of the necessary functionality. DECODE HQ consistently rolls out new features and communicates regularly with the client. The team leverages their technical expertise and experience to produce quality results.

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

Bizzon is a SaaS company that has built a series of market leading capabilities to support merchants in their pursuit of having loyal, happy customers. Bizzon brings buyers and sellers together, building long term, loyal relationships. My role is to make sure that the tech team both internal and external help with achieving our strategic business goals.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire DECODE HQ?

We hired DECODE to help us develop iOS and Android applications for our platform. One of the key challenges was application’s communication with an external receipt printer and DECODE had a good track record of hardware-related projects.

What were your goals for this project?

The goal was to create a modern application as a front end to our platform with an excellent UX and ease of use, that would enable merchants and their customers seamless payment process experience. The application was one of the key factors for the uptake of our platform.

SOLUTION

How did you select this vendor?

DECODE came highly recommended by trustworthy business associates. I got to know the founders, spent some time talking to them and their staff and they were able to demonstrate their expertise and reliability through references and domain know-how. We personally selected DECODE’s engineers for the project.

Describe the project in detail.

One of the project’s main goals was to add receipt fiscalisation and printing capabilities to our platform by the means of the mobile application, turning the phone/table into a POS device aimed at restaurants.

The application is a native iOS and Android app. DECODE also needed to develop drivers for low-level communication with fiscal modules and printers. These needed to be adjusted and tweaked for different countries and hardware manufacturers.

What was the team composition?

DECODE’s team consisted of 1 iOS and 1 Android engineers that worked closely with our UX designer, hardware providers and the platform engineering team.

RESULTS & FEEDBACK

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

Application releases have been happening according to the plan, even ahead of it, enabling us to roll out new features frequently. The usability was very good so we were able to onboard new users easily.

The short time to market also allowed us to enter new markets so we are now present in over 300 restaurants across Europe.

How effective was the workflow between your team and theirs?

DECODE’s developers were very autonomous and standalone in their work, demonstrating great seniority in communication, especially with the device vendors. We used productivity platforms of DECODE’s choice and the communication in the team was just swell, no matter what channel was used.

What did you find most impressive about this company?

We were impressed by DECODE’s technical expertise and in-depth knowledge of mobile app development. Over time we also got to know them as a reliable partner, the one that delivers and is transparent in their communication.

Their staff shown broader engineering skills, beyond just “mere” software development, like analytical approach, diligent troubleshooting and the willingness to learn fast.

Are there any areas for improvement?

Looking back at the collaboration with DECODE, there’s nothing specific I could single out as a problem or challenge.

5.0
Overall Score Overall, the collaboration was super-smooth.
  • 5.0 Scheduling
    ON TIME / DEADLINES
    Worked great - their estimates were realistic and fulfilled.
  • 4.5 Cost
    Value / within estimates
    Great value for price.
  • 5.0 Quality
    Service & deliverables
    High quality code was delivered.
  • 5.0 NPS
    Willing to refer
    Will be glad to recommend.

Mobile App Dev for Telecommunications Company

"DECODE are one of our most trusted suppliers and we’re pleased to have them as a partner."

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$200,000 to $999,999
 
July 2017 - Ongoing
Project summary: 

DECODE HQ supports an in-house engineering team to enhance existing products and develop new solutions for Android and iOS platforms. This involves design and development.

The Reviewer
 
501-1,000 Employees
 
Enfield, United Kingdom
Director of Engineering, Telecommunications Company
 
Verified
The Review
Feedback summary: 

The vendor's support fosters a steady release cycle. All of their work is of high quality with minimal bugs. The team collaborates well with stakeholders, easily blending into the existing culture. They bring a depth of expertise to the engagement, even helping to train other engineers.

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

We are one of the longest-lasting telecom software vendors. We are powering more than 1,000 service providers globally, including tier-1 telecom operators. I am a director of engineering in charge of client products for mobile phones and desktops.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire DECODE HQ?

We hired DECODE to work jointly with our in-house engineering team on improving the existing and develop new mobile products for Android and iOS platforms.

What were your goals for this project?

Our mobile communication clients had to provide carrier-grade group communications services to network operators by blending the native dialer of the smartphone with network-based voice and messaging, multiple personas, unified communications, and collaboration. Mobile apps complement our backend platforms enabling us to offer an end-to-end solution to our customers. We want mobile clients to be state-of-the-art, having superb UX and quality of service.

SOLUTION

How did you select this vendor?

We compiled a list of potential vendors for the project, based mostly on referrals and previous experiences from our organization’s members. Initially, there were 3 vendors which we contacted and reviewed, 2 of which went through a thorough selection process involving senior members of the engineering organization (VP level). Decisive points for choosing DECODE were their agility, previous experience in similar projects and expertise demonstrated in the selection process.

Describe the project in detail.

DECODE were responsible for design and implementation of enhancements and features of Android and iOS apps based on specifications and UI/UX designs provided by us.

What was the team composition?

Changed over time depending on our demands - 1 or 2 leads, with 3-7 engineers.

RESULTS & FEEDBACK

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

We managed to have the first version of one of our new apps ready for commercial trials in well under a year of starting to work with DECODE and maintained a steady release cycle over the next year adhering to the highest quality standards. The UX and the overall usability of our apps increased significantly as a result of DECODE augmenting our development capacities. We are seeing low numbers of bugs and issues in the apps and DECODE are addressing them promptly.

How effective was the workflow between your team and theirs?

DECODE team members are embedded in our engineering process, using the same development and collaboration tools like our staff (e.g. Jira, Slack, etc.). Inter-teams' communication was smooth and effective, especially between our designers and DECODE’s developers. We held regular conference calls and face-to-face meetings when needed. DECODE engineers’ work attitude and professional ethics met our expectations, very similar to our own and we experienced no cultural or any other discrepancies. With DECODE being based in mainland Europe, we only had 1-hour time difference which posed no practical problem.

What did you find most impressive about this company?

DECODE are one of our most trusted suppliers and we’re pleased to have them as a partner. They have built a reputation as supplying quality code at the exacting standards we expect of our own developers. Working with DECODE is a pleasure. Their expertise on iOS and Android is excellent and as well as working well with my team they’ve also presented workshops on mobile development to help train up my less experienced engineers.

Are there any areas for improvement?

Our collaboration with DECODE was excellent. One area that we’d like to extend is testing and we’d like to see DECODE taking on more responsibility for not just unit testing, but fully owning functional testing as well and we are already working with them on making that happen.

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 Vitamin Company

"Their communication was highly responsive, they were proactive and had that youthful zeal."

Quality: 
5.0
Schedule: 
5.0
Cost: 
4.5
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
 
July 2016 - Oct. 2017
Project summary: 

DECODE HQ developed a mobile app for a vitamin company. Their team created native versions of both iOS and Android apps as well as the backend web system. 

The Reviewer
 
1-10 Employees
 
Zagreb, Croatia
Dean Vranić
CEO, Vitastiq d.o.o.
 
Verified
The Review
Feedback summary: 

The earliest version of the app attracted clients, tech experts, and journalists, and the subsequent version has been downloaded thousands of times. DECODE HQ is responsive and adaptable, prioritizing the relationship with their client. Their team goes above and beyond to deliver quality results.

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

I am the founder and CEO of Vitastiq Inc, an Indiegogo-backed lifestyle product startup from Zagreb, Croatia. Vitastiq is a company behind the world's first personal gadget that helps track your vitamin and mineral trend using a smartphone. Vitastiq provides information about 26 vitamins and minerals and their natural sources.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire DECODE HQ?

A companion mobile application is a crucial part of our product that is based on the vitamin tracking device. As a consumer product startup, we didn’t have the needed software engineering capabilities in house, so we hired DECODE to build the mobile application for us.

What were your goals for this project?

As a startup, we wanted our innovative product to grow fast. A mobile app is the only way to consume the device’s readings and derive value from them, so it was of utmost importance for us to be simple, intuitive and superb in usability and UX. The mobile app development project had a major impact on our company’s overall business, right next to the device itself.

SOLUTION

How did you select this vendor?

We found ourselves in a position where we had to disengage from our initial app vendor on account of their inability to deliver such a demanding project. DECODE came highly recommended from our hardware platform vendor, who had done business with them before and were convinced in their capability. It was DECODE’s agility, overall technical expertise and previous experience with mobile-connected devices that made our core team decide to go with them.

Describe the project in detail.

We had the hardware figured out but we were looking for a dependable partner to develop the app that would sync with the hardware pen that scans vitamin and mineral levels. The goal of the app was to display and track the data from the vitamin checks and help their users make educated decisions about their health.

Accurate and reliable communication between the mobile phone (app) and the pen was one of the key technical requirements. In addition to implementing native mobile applications for iOS and Android, 3 different versions for each platform, DECODE also worked with our team on the backend web system. DECODE also provided consultancy on all technical aspects of the product.

What was the team composition?

DECODE’s team consisted of 1 Android, 1 iOS developer and a technical lead that managed the project.

RESULTS & FEEDBACK

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

The first app versions were more than good enough to attract early adopters, technology enthusiast, and journalists - WIred named us “the coolest thing in their office” at the time. Based on that initial feedback and learnings, we worked with DECODE on quickly releasing subsequent versions with improvements and new features, which led to thousands of downloads in the first months.

How effective was the workflow between your team and theirs?

Working with DECODE was no different than working with our own staff. The communication was very open, both ways, which enabled us all to be very efficient. Our offices are literally “across the street”, so most of our meetings and workshops were face to face. DECODE delivered on their promises, making set deadlines with no exceptions and being much more than “just” a vendor, a true partner.

What did you find most impressive about this company?

While working on Vitastiq, DECODE pulled all the stops. Of course, they delivered the project, but what’s also important is the relationship with us and the way they work. Their communication was highly responsive, they were proactive and had that youthful zeal. I don’t know how they did it, but the whole time we were working together, we felt like we were their only client!

Are there any areas for improvement?

The only thing I “regret” about working with DECODE was not knowing them earlier so we could have hired them from the very beginning. 

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