Keep it simple.

We offer comprehensive end-to-end mobile app development services. From design and consulting, to an iterative production cycle, to delivery, distribution and beyond, we bet high on quality, deadlines and reliability. It will be our pleasure to answer any questions and help you find the best way to use mobile in your project – feel invited to work with us!

 
$5,000+
 
$25 - $49 / hr
 
10 - 49
 Founded
2012
Show all +
Wrocław, Poland
headquarters

Portfolio

Key clients: 
  • Answear.com
  • Universal Music
  • Egmont
  • Nordisk Film
  • forBET
  • Warsaw University of Technology
  • Rosa

Answear - online fashion store

Holdapp has created a mobile app for ANSWEAR.com in cooperation with mohi.to. It is a fully functional online store accessible from the user’s phone. The native tool allows users to browse the product ranges of more than 200 of the world’s most fashionable clothing, footwear and accessory brands. The user can easily find available sizes and colours in women’s, men’s and children’s collections, finalise the purchase thanks to
mobile payments and choose the most convenient delivery method.

Aura - SociAR Messenger

Aura is an innovative approach to online communication. Using augmented reality, it allows users to communicate their mood through real objects and places. Thanks to integration with many popular social media services (Facebook, Instagram, Twitter), Aura is always up to date with the latest statuses, messages and photos shared by the user. Location technology combined with augmented reality makes it possible to share this
information at any point of the planet, allowing other users in that location to read our Aura using the AR scanner. In the past, the app also allowed users to process the camera image to create unique designs, which could be later assigned to their Auras and directly purchased on T-shirts thanks to Shopify, Paypal and Printful integration.

Direct Language Lab

Interactive coursebooks for leaning foreign languages based on the principles of the direct method, published by Direct Language Lab. The app gives the full access to digital equivalents of books published by DEEP. The user learns correct pronunciation using vocabulary, explanations and questions with answers. The application allows you to learn 10 languages contained in a dozen coursebooks. Payments are made using the In-App
Purchase system.

ANY - Action Near You

ANY is a mobile application designed for active people who are willing to share their passions with others. ANY lets you create your own events and invite to them present and future friends. With this application users have the opportunity to meet people with similar interests.

Emerald

Emerald is the ultimate tool for monitoring air parameters at home. Emerald Air iOS app gathers data from Emerald devices using Bluetooth Low Energy and lets you inspect air quality, temperature, humidity and pressure from multiple devices at once. The system will notify you when air parameters are not within acceptable range and will offer useful tips on how to improve them as well. Built-in graphs and stats let you track changes
live as well as review historical data.

Lifebit

Lifebit makes it easy and fun to track your history of daily calorie and nutrients intake and burndown through a dairy of your eating habits and activities. Track your health effortlessly thanks to Bluetooth scale and Pressure monitor integration. Sync your data with an advanced medical portal over at zdrowychory.pl and access it from all your devices.

Kiidio

Kiidio is a music player designed for the youngest users. Its simple and intuitive interface allows the child to explore the world of music and audiobooks. The app is integrated with Spotify and it allows administartors to remotely manage content available for children.

ROSA Designer

ROSA Designer app is a visualisation tool for assembly of ZPSO ROSA products. It helps to compose faultlessly a full park or street lighting set with ease. ROSA app covers the full range of outdoor lighting products: luminaries, columns, extension-arms or wall-brackets. User can select surface finish of individual elements from available anodizing color palette. After product selection ROSA app generates bill of materials,
complete with correct concrete footings and mounting sets. From software level You also get access to technical drawings. Verified user will gain access to bill of materials with manufacturer prices. ROSA Designer app is also a helpful tool for aesthetic evaluation, You can create visualization by locating chosen lighting set on any landscape photo.

CRWSH

CRWSH contains a gigantic car wash base across the country and abroad. Here you'll find the best car wash anywhere you need it. Did you like the service? Was everything fine or something was missing? Write a review and leave a comment for others!

Ostrów Wielkopolski

The official app of the city Ostrów Wielkopolski. The app includes updated information about events in the city and major urban communications companies, descriptions of the major urban areas, tourist attractions and places worth seeing.

Sensacyjne Lato Filmów

The official mobile application of the Festival of Thriller Movies in Kołobrzeg will allow you to check out the programme, create a personalized calendar of projections and find all of the festival's locations on a map.

Troldeliv

Troldeliv, which means ‘’The Life of Trolls’’, is an adaptation of a popular Danish comics inspired by runic legends and by the spell casts of the old, prepared in the direct cooperation with the authors of the original story.On the iPad screen trolls experience the amazing adventures.

Rasmus Klump

Rasmus Klump is a mobile version of popular Danish fairy tales published by Egmont Publishers. Beside the classic books, the app features many great animations, games, and movies. Since 2013 Holdapp proudly supports and develops mobile application Rasmus Klump, which has a very high position in the Danish App Store.

Classic Winnie-the-Pooh

In Classic Winnie-the-Pooh, the well-known Bear, loved by kids and parents alike, goes mobile. This popular app showcases the original illustrations by E.H.Shepard, transformed into interactive animations, and features an informative chapter on the background of the stories, giving insight into the inspirations behind the timeless classic.

Pixi Børnebøger

A collection of digital books that exploits the rich inventory of Lindhardt og Ringhof (Egmont Group) and it's brand for kids, Carlsen. Aside from reading, the app includes a drawing activity that lets kids create and share small booklets, complete with text, drawings, stickers, and a dedication.

Smurfs

Smølferne is a Scandinavian series of applications comprising movies, and games for the youngest users.

H.C. Andersens Eventyr

H.CH. Andersen’s Eventyr is an application for every young and adult fan of H.CH. Andersen’s fairy tales. The app is a rich selection of audiobooks, books and cartoons, supplemented with a set of mini-games designed with a wizardy flair and imagination. Holdapp created a complete redesign of the app and greatly expanded its functionalities.

Elias

Elias is the popular app in Norway, and it has been nominated for The Children Application of The Year 2013.  The application includes audiobooks and movies as well as a series of games and awesome animations.

Donald Duck Junior

Donald Duck Jr. is the World of the famous Donald Duck transferred onto a mobile's display screen. Traditional books and cartoons about Donald Duck’s adventures have been adapted for the mobile users, and they have been enhanced by adding mini-games and cartoons well-known and well-remembered by the whole generations of his lovers and admirers. Donald Duck app is available on the Dunish, German, Swedish and Norwegian

market.

Bamse

Bamse, the world’s strongest bear, is the most favourite bear of children in Sweden. The application includes the most popular audiobooks, movies, and games.

Ultimate Fan Live

Thanks to Ultimate Fan Live, football fans in the Word receive an additional shot of sports adrenaline. The users of Ultimate Fan Live can play games among themselves during the most prestige real-life matches in the world. The user’s aim is to select two football players who he thinks to be the two most brilliant players in a single match. Users can invite to the game their friends.

CAB4YOU

CAB4YOU is a free and handy mobile system for booking taxis with no need to call taxi centre. This intuitive application lets you find the taxi quickly, estimates the cost and a time of arrival. It also inform you as soon as the car is at the pick up address.

Reviews

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iOS Development for App Developer

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

Holdapp provided developers to augment a development team working on an iOS application. They built the app from scratch based on its wireframes and designs.

The Reviewer
 
51 - 200 Employees
 
Wroclaw, Poland
Account Manager, App Developer
 
Verified
The Review
Feedback summary: 

The team produced an excellent application within a quick timeframe and to high standards of quality. They worked in scrum effectively, while always communicating smoothly, whether in person at the office or remotely when necessary. They are knowledgeable, offering interesting ideas.

BACKGROUND

Introduce your business and what you do there.

I’m an account manager for an app developer.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with Holdapp?

We sometimes need staff to augment our team when we don’t have enough developers in-house. In this case, we needed iOS developers.

SOLUTION

What was the scope of their involvement?

They provided iOS development for us. They started the app, which is a 3D sound system, from scratch. Phones can connect to it via Bluetooth.

We sent them all the requirements, the designs, and wireframes. They worked closely with our team. We had created an Android app internally, so all the developers worked together on the iOS project.

What is the team composition?

We collaborated with two members of their team, working in scrum with direct communication with our developers.

How did you come to work with Holdapp?

We’d worked with them before, and I believe our CEO knows someone from their company. We did consider a couple of other companies, but we checked the code they had all created, and Holdapp’s was what we were looking for.

How much have you invested in them?

We spent around $30,000.

What is the status of this engagement?

We worked with them on this project from March–June 2018.

RESULTS & FEEDBACK

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

We did code reviews on our side and we were really happy with them. The quality of their code was really good, and the client was also very happy with the iOS app. The development went quicker than with the Android app, which was great.

How did Holdapp perform from a project management standpoint?

Both developers had experience with the scrum methodology, so it went very smoothly. From our perspective, it was a huge bonus.

The communication was consistent both in our office and over Slack when they worked remotely. They logged their time transparently, and we could trust them to complete their work.

What did you find most impressive about them?

They told us when they didn't like something or through we could find a better approach. We didn’t feel like we were just a client—it felt like a real partnership, and we learned a lot from them.

Are there any areas they could improve?

I don’t think so. Everything really went well.

Do you have any advice for potential customers?

Be transparent with them. Previously, we’ve not given all the required information to developers and they’ve been misguided due to that. Holdapp has a team of professionals, and they can help you from both an IT and a business perspective. They’ve created a lot of apps and can suggest cool ideas.

5.0
Overall Score I didn’t have any issues with them.
  • 5.0 Scheduling
    ON TIME / DEADLINES
  • 5.0 Cost
    Value / within estimates
  • 5.0 Quality
    Service & deliverables
  • 5.0 NPS
    Willing to refer
    I would really recommend them.

Polish Lighting Company Mobile Application

"[This] app could be one of the best examples of how to use mobile devices in your professional life."

Quality: 
5.0
Schedule: 
4.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
Project summary: 

Holdapp developed a mobile app that helps present lighting products. The app simulates how elements are mounted into sets and how they will look in real life. The app includes 3-D models and extensive ERP data.

The Reviewer
 
Poland
IT Consultant, Lighting Company
 
Verified
The Review
Feedback summary: 

The final product exceeds expectations. Holdapp’s design met all required functionalities, included sophisticated features, and works smoothly on many platforms. The team mathematically described the components into 3-D. They also designed the app to produce material lists and send custom orders.

BACKGROUND

We manufacture lighting sets, such as street and park lights, of various types and sizes, employing about 250 people, and located in Poland.

I'm an IT [information technology] consultant, responsible for managing a project's financing, and taking part in the designing, production and implementation stages.

OPPORTUNITY / CHALLENGE

We are trying to increase growth along with decreasing costs. If we can reliably present our products in the correct markets, we can accomplish both goals.

Mobile devices are the perfect medium of implementation of our marketing strategy. If we want to reach new customers, satisfy the current customers and create a modern image of the company, we can't ignore mobile.

SOLUTION

It's always difficult to imagine how lighting sets, composed of many different parts, would look like in real life. [The mobile application] simulates the way of mounting all the elements into one, complete lighting set.

The set can be saved and read from mobile devices whenever it's necessary, it can be rotated and seen from below and above, and can be painted or anodized into many different colors.

It's possible to obtain a bill of materials or pricing list, place the lighting set on your street or park image and to decide whether it fits to the landscape or not. Finally you can print it out, mail to investors or send the order to the manufacturer.

To design the application, it was necessary to mathematically describe all the components, produce 3-D models, and choose the appropriate rendering engine. A lot of data from ERP [enterprise resource planning] systems had to be moved to the mobile device to make the system function. The results were strong.

RESULTS & FEEDBACK

The result is better than anyone could expect. All the required functionalities were met, even the really sophisticated features. The application works smoothly, even on iPads of previous generations.

On the other hand, it uses many of the features of mobile devices, such as rendering 3-D models with zooming, rotating, and changing colors – just with a couple of finger taps. The app uses the camera, image resources, mailing possibilities, and so on. Our app could be one of the best examples of how to use mobile devices in your professional life.

Feedback from our clients, sales representatives, and our own sales force is great. This application enables you to see the product before it's going to be manufactured and placed into reality.

I suggest everyone try working with Holdapp.

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

Application Development for Media Group

"Holdapp goes beyond the contract to meet special needs and new ideas."

Quality: 
4.5
Schedule: 
3.5
Cost: 
4.0
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
 
2011 - Ongoing
Project summary: 

Holdapp provides a wide range of services, such as app development, implementation of assets, and testing and final submission. They have completed several projects to increase app revenue and retention.

The Reviewer
 
1,001-5,000 Employees
 
Denmark
Product Owner, European Media Group
 
Verified
The Review
Feedback summary: 

Holdapp is committed to the brand and the projects. The team provides consistently high quality support, service, and products. They are competent and can be trusted to fulfill the project scope. They are an agile team and work with extensive scrum practices.

BACKGROUND

[Our company] is a leading media group in the Nordic countries with activities in 30 countries and 6,300 employees. [We are part of a group that is] a leading magazine publisher in the Nordic countries and commands leading positions in a number of other markets. [Our company] produces more than 700 weekly and monthly magazines as well as children's books, including licensed brands. [My] department is a department under [the main company] designing mobile apps for kids. I'm a lead UX [user experience] designer and product owner [for my department].

OPPORTUNITY / CHALLENGE

[Our goal was to] increase revenue and retention in our kids apps in the Nordics, primarily aiming at preschool kids and their parents. 

SOLUTION

[We have] been working with Holdapp on a number of projects since 2011. Holdapp provides iOS and Android app development, preparation implementation of assets like graphics, sound, and animations, and takes care of testing and final submission. Holdapp is an agile company and works with extensive scrum practices.

RESULTS & FEEDBACK

We are generally very satisfied with Holdapp's performance regarding service, support, and quality. We believe that the company possesses the right competencies and will to fulfill the project scope.

Holdapp goes beyond the contract to meet special needs and new ideas. It is our experience that they feel committed to our brands and projects.

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

Cab4You

"Working with Holdapp was a great decision."

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
 
2014 - 2015
Project summary: 

Holdapp developed a mobile app for Android and iOS that integrates with existing software. The app contains both real raw socket and http connections and communicates with two types of APIs.

The Reviewer
 
1-10 Employees
 
Poland
Founder, Transportation App Startup
 
Verified
The Review
Feedback summary: 

The software and mobile app perform well, with thousands of users and no complaints or problems. Holdapp delivered a robust, well-planned technology solution that provides a new opportunity for booking taxis. The team created a functional app with a complex backend but a simple user interface.

BACKGROUND

I am the shareholder and the manager of a startup company. [We] had a challenge to build and integrate the mobile application with our existing solution – taxi dispatch software. My role was closely manage planning to the final product.

OPPORTUNITY / CHALLENGE

The challenge was to integrate a mobile application with the existing solution. The flow of the application on the back-end was complex, but my very first requirement was to have as simple a user interface as possible.

The application is to let customers book their taxis by just a few screen taps. Then, users can follow the car on the map and finally be informed when the car is at the destination address. The plan was to give to my customers (taxi fleet companies) a brand new opportunity to gain some new people booking their cars.

SOLUTION

The solution was chosen with no hesitation. The mobile application dedicated to the main and leading platforms in Poland – Android and iOS. The solution contains both real raw socket and http connections. The application functions properly and can communicate with two types of API [application programming interface]. One API fetches price simulations and real-time car position from the taxi server, and the other is to get user info from the central database.

The engagement lasted about one year total and was completed in the beginning of 2015.

RESULTS & FEEDBACK

The software performs well. Now, several thousands of our users book their cars without problems or complaints. The technology used for that was robust and a well-planned choice. To conclude, working with Holdapp was a great decision.

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

ExhibitView iPad 5

"They earned our business."

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
Project summary: 

Holdapp assumed responsibility of improvements, upgrades, and maintenance for a paid iPad app. The team kept the app’s features competitive within the industry and ensured there were no bugs.

The Reviewer
 
Atlanta Metro Area
Partner & Creative Director, Software Company
 
Verified
The Review
Feedback summary: 

Holdapp consistently delivered results on time, according to the promised scope, and within the estimated budget. Despite their location in a different time zone, the team was pleasant and easy to work with. They are experienced in development and provided valuable insight, advice, and assistance.

BACKGROUND

We sell presentation software for lawyers to use in courtroom presentations of all kinds. Users can use the application for exhibits and making presentations. This is a paid application available for third-generation iPads.

OPPORTUNITY / CHALLENGE

We needed a knowledgeable company who does what they say they will do without surprises regarding cost or development. We are a small company with tight budgets.

SOLUTION

We hired the Holdapp team to take over our iPad app and make it more feature competitive within our industry. We needed to offer something special without bugs since this is a paid app with a lot of competition.

RESULTS & FEEDBACK

The results were wonderful. I also learned a great deal about iPad app development and the Holdapp team did exactly what they said, and when they said they would do it. Holdapp is a great company to work with even if they are offshore in a different time zone. I look forward to our next update project with the Holdapp team. They earned our business.

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

Mobile Project for German Digital Agency

"They tried to push the project to a higher level."

Quality: 
4.0
Schedule: 
5.0
Cost: 
4.0
Willing to refer: 
4.0
The Project
 
Less than $10,000
Project summary: 

Holdapp supplemented a design and media company's team in the development of several mobile apps. The team developed both Android and iOS app versions.

The Reviewer
 
11-50 Employees
 
Hamburg, Germany
CEO & Founder, German Digital Agency
 
Verified
The Review
Feedback summary: 

The team works fast and pushes project improvements. Holdapp is service-oriented with competitive prices for the quality work that is provided. They could improve in terms of quick communication, but it was never an issue that affected the final project. 

BACKGROUND

Please describe your organization.

We're a design and media company located in north Germany. We're doing everything around the digital presentation of companies, institutions, and organizations starting from Web design, social media campaigns and websites, [along with] SEO [search engine optimization and] e-commerce. 

What is your role and responsibilities?

I'm the founder and CEO.

OPPORTUNITY / CHALLENGE

What was your goal for working with Holdapp?

We started the work with developing native apps for Apple and Google.

SOLUTION

Please describe the scope of their work.

[We had them develop] Android and iOS mobile apps.

What was your process for selecting Holdapp with which to work?

We just Googled them and we spoke to a few companies, and I think they were the nicest and most service-orientated company that we found, and so we started the work. We got the right feeling. The work was very nice.

Can you give a sense of the size of the initiative in dollar terms or a personnel work-hour figure?

It was less than $10,000

When was the work completed?

We have two of three parts done.

RESULTS & FEEDBACK

Do you have any statistics or metrics to track improvement from the project?

The main metric is satisfying our end client because these applications are for other firms.

Are you satisfied with their performance?

We were happy with them. The work was very fast, and they are really service-oriented professionals, so they gave us some ideas that we didn't think about. They tried to push the project to a higher level.

Is there anything unique or special about Holdapp that really makes them stand out compared to other business partners?

There's a price difference. That's why we are working with companies in Eastern Europe. That drove the decision to find a company in Poland. After that, we received feedback from our clients that the work is really fast and really good and for a competitive price.

What advice would you give to future clients of theirs?

I suggest talking to the service team, talking to the developers. You must think about what should be done and how it should be done and asking if there are some options that you were not thinking about on your own.

Looking back on the work so far, is there any area that you think they could improve upon or that you might do differently?

Of course, the sky is the limit. I think the communication could be a bit more intensive. Answers could be given a bit faster. However, all their work was right, so we were not waiting for weeks, but if something's urgent, you need information in a few hours or a day. There were one or two situations where we were waiting on information. Regarding the deadline, it was no problem.

5.0
Overall Score
  • 5.0 Scheduling
    ON TIME / DEADLINES
  • 4.0 Cost
    Value / within estimates
  • 4.0 Quality
    Service & deliverables
  • 4.0 NPS
    Willing to refer
    It is our business to get a project done cheap, and sell it to other clients. I don't have a reason to recommend a company like them. It's my service to design and develop.