Mobile App Development for iOS & Android.
With a mobile app, your customers can make bookings, place orders and look up information straight from their phone. We handle the UI/UX design, development, integrations with your systems and publication on the App Store and Google Play.
App development, design and integrations.
A useful app starts with a clear definition of what it must do and who will use it. From there, one team takes care of the design, development, integrations and maintenance. When the app uses AI, the same team handles the AI Integrations.
iOS and Android app development
A custom app lets your customers book a service or place an order, and gives your team access to company information away from the office. We develop native iOS apps in Swift and apps for iOS and Android from shared code in React Native and Expo. The technology is chosen according to the features, integrations and expected maintenance.
- iOS development
- Android development
- Custom features
Mobile app UI/UX design
An interactive prototype lets you try the app before development begins, from registration to confirming an order. We design the screens and the journey for each task in line with your brand's visual identity, reviewing the wording, navigation and accessibility. Adjustments are discussed with you at this stage, while they are still simple to make.
- Interface design
- User journeys
- Interactive prototypes
App APIs, backend and payments
Your app can display company data, receive orders and give each customer access to a personal account. We connect it to your systems through APIs and develop the backend, with authentication, subscriptions and payments. With a dedicated API, content such as products or news is updated without publishing a new version of the app.
- APIs and backend
- Authentication and data
- Payments and subscriptions
App publishing and maintenance
We prepare your app for the App Store and Google Play, with device testing, screenshots and descriptions for each store. During Apple's and Google's review, we handle any changes requested. After launch, maintenance can stay with us: fixes, dependency updates and adaptation to new iOS and Android versions.
- Device testing
- Store submission
- Updates and support
How we build your app.
We start with a first version built around the essential features. You test and review the app with us at every stage, through to publication in the stores.
Define the first version
We identify who will use the app and the tasks they need to carry out with it. With that information, we agree with you on the first-version features, the platforms and the systems to integrate, together with the price and schedule.
Design and develop
An interactive prototype lets you review the navigation before we start programming. Development of the features and integrations follows, with tests covering tasks, permissions and connection failures.
Prepare for launch
We run the final tests, submit the app to the App Store and Google Play and follow the store review. Access is handed over to your business, along with guidance on handling updates after launch.
Hear it from the people we work with.
Read about the experience of businesses that trusted us with the design and development of their website, from the first sketch to support after delivery.
Meeting INDIGIT was a great move. Good end result, quality and speed. The website came out exactly as we wanted it.
André AbreuAndré Abreu SegurosINDIGIT turned out to be a great partner for optimising our website. Fast, always available, and a mentor when it came to setting strategy. Strongly recommended.
Daniel AzevedoTerzihan ®Pleasantly surprised. A very helpful team, always with good ideas and always willing to put them to work.
Rui MartinsNew Wave InterioresA young, sharp team that actually understands what a company needs to say. Always there for their partners. Thank you!
Cecília AlvesClin ®I am happy. A professional team, they hit the deadlines, and I am pleased with the final work. Thank you and good luck!
Carlos CruzCEO, DomrealceVery professional. Software done as I requested, finished within the timeline. Will definitely work with this company again.
Olav AlbertsViral MarketerMeeting INDIGIT was a great move. Good end result, quality and speed. The website came out exactly as we wanted it.
André AbreuAndré Abreu SegurosINDIGIT turned out to be a great partner for optimising our website. Fast, always available, and a mentor when it came to setting strategy. Strongly recommended.
Daniel AzevedoTerzihan ®Pleasantly surprised. A very helpful team, always with good ideas and always willing to put them to work.
Rui MartinsNew Wave InterioresA young, sharp team that actually understands what a company needs to say. Always there for their partners. Thank you!
Cecília AlvesClin ®I am happy. A professional team, they hit the deadlines, and I am pleased with the final work. Thank you and good luck!
Carlos CruzCEO, DomrealceVery professional. Software done as I requested, finished within the timeline. Will definitely work with this company again.
Olav AlbertsViral MarketerBefore you build your app.
Answers to the most common questions about platforms, features, store publication and costs.
Do I need an app or will a website do?
It depends on how your customers will use the service. To present services and receive enquiries, a mobile-friendly website is often enough. A progressive web app (PWA) is another option, depending on the device features you need. The decision to build an app takes into account frequency of use, the phone features required and the maintenance effort.
Do you develop for iOS and Android?
Yes. We develop native iOS apps in Swift and apps for iOS and Android with shared code in React Native and Expo. The choice depends on the features, integrations and expected maintenance. The devices covered are agreed with you, and each platform is tested before submission to the stores.
Can I try the idea before development?
Yes. An interactive prototype lets you go through the main screens of the app and discuss each task before programming begins. Structure, wording and UI/UX decisions are reviewed at a stage when changes are simple. The prototype is not yet a working app: integrations, real data and device testing belong to the stages that follow.
Can I create an app with AI tools?
Yes, as a starting point. Artificial Intelligence (AI) tools such as Claude Code, Cursor or Codex help explore ideas, design screens and generate code. Publishing the app still requires UX decisions, verified integrations, testing and preparation for the stores. If you already have a version built with AI, we assess the code and data access to identify what to keep and what to fix.
Can you improve an existing app?
Yes. We start by reviewing the code, dependencies and account access, and we prepare a test build wherever possible. This assessment identifies the problems and leads to concrete improvements. When the app's foundations no longer hold up, we explain what justifies a rebuild before recommending that investment.
Can the app include accounts and payments?
Yes. The app can include authentication, subscriptions and paid content, with the backend it needs. Each store's payment rules depend on the market and on what you sell: physical goods, services or digital content. Access and external costs are defined from the outset, and testing covers cancellations, account recovery and restoring purchases.
Who publishes the app to the stores?
Our team does, through your business's developer accounts and with the access assigned for the purpose. We prepare the materials and follow the submission, but approval is decided by Apple and Google, who may request changes. Privacy declarations and the data processed are your business's responsibility; we help identify the permissions the app needs.
How long does it take to build an app?
It depends on the features, platforms, integrations and your starting point. The plan sets stages for the prototype, development and testing, with time for your reviews. Store review follows its own schedule. If there is an important launch date, we agree with you on what goes into the first version.
What does it cost, including other expenses?
It depends on the features, platforms and integrations with other systems. You can choose a custom project, with its own price and schedule, or the INDIGIT Subscription, with a fixed monthly fee and one active request at a time. The proposal separates our fees from external expenses such as store accounts, hosting, third-party services and advertising.
What happens after the app launches?
The app moves into maintenance. New iOS and Android versions and changes to store rules require updates, which can stay with us alongside fixes and new features. The tasks and the way to request support are agreed with you. Whenever the app starts collecting different data, its privacy information must be reviewed.
What will your app do?
Tell us who will use the app and what they need to do with it. We will help you define the first version and present a proposal with a price and schedule.