--- title: "Mobile app development for iOS & Android | R&D COPILOT" lang: en canonical: https://apps.rdcopilot.com/ content_version: f0613a1d78a0e563a67bc4a74c6d34618a08b1245d5fb26299e1086d6ac4ba6c contact: https://rdcopilot.com/contact/ --- R&D COPILOT / Mobile apps iOS & Android # Your next idea. In their hands. We design, build and maintain mobile apps. From the first product decisions to the interface, the backend and the next release. Bring a new idea, an existing app or a workflow that needs to move with your team. [Get a project quote](https://rdcopilot.com/contact/?service=mobile-apps) [Explore our apps](#apps-work) Product & UXiOS & Android developmentAI & integrationsRelease & maintenance 01 / Built by our team ## Real products. Different problems. A translator, a driver messaging app and a daily journal. Take a closer look at the experiences we build. [![OffLingua on iPhone: English text and its French translation.](https://rdcopilot.com/mobile-apps/offlingua-text.jpg)View full size](https://rdcopilot.com/mobile-apps/offlingua-text.jpg) OffLingua / Translation on the device. [![re:plyte store image showing the new message screen and reasons for contacting a driver.](https://rdcopilot.com/mobile-apps/replyte-compose-en.png)View full size](https://rdcopilot.com/mobile-apps/replyte-compose-en.png) re:plyte / Start a conversation with a driver. [![AntiVision on iPhone: the daily journal with scheduled reflection prompts.](https://rdcopilot.com/mobile-apps/antivision-journal.png)View full size](https://rdcopilot.com/mobile-apps/antivision-journal.png) AntiVision / A place for daily reflection. [![OffLingua photo mode translating a French notice over the original photograph.](https://rdcopilot.com/mobile-apps/offlingua-photo.jpg)View full size](https://rdcopilot.com/mobile-apps/offlingua-photo.jpg) OffLingua / Camera input and translated text in context. Swipe or use the arrows to explore. Image 1 of 4 01On-device translation ### OffLingua Text and photo translation on iPhone after a model download. Camera input, language selection and local inference meet in one focused app. [Explore OffLingua](https://offlingua.rdcopilot.com/) 02Connected mobile product ### re:plyte Messaging between drivers using a licence plate and issuing country. A product that brings together conversations, vehicle access and notification preferences. [Explore re:plyte](https://replyte.com/en) 03Daily habits & reflection ### AntiVision Goals, daily challenges and a reflective journal in a mobile experience. Clear prompts and visible progress give a recurring activity its structure. [View AntiVision on the App Store](https://apps.apple.com/app/id6758081564) 02 / From idea to release ## The whole app. Thought through. The work connects: a good screen needs a dependable API, and a good launch needs a plan for what follows. We shape the scope around your product. 01 ### Find the useful first version. Work through who the app is for, what they need to do and what belongs in the first release. Turn that into user flows, a clickable prototype and a build plan. Product discovery · UX · prototyping 02 ### Make it feel at home on a phone. Design and build for iOS and Android around the experience you need. Navigation, accessibility, camera, notifications and offline states are part of the product from the start. iOS · Android · interface design 03 ### Connect the work behind the screen. Build the APIs, authentication, data sync and integrations the app depends on. Connect existing systems, handle interrupted requests and make account access clear. Backend · integrations · accounts 04 ### Bring AI onto the device. Use local models when the workload and device support them. Test model downloads, memory, latency and offline behaviour; connect hosted AI when that better fits the job. On-device AI · text · images · voice 05 ### Take the product through release. Test on devices, prepare store assets and submissions, and work through review feedback. Put crash reporting and release checks in place before the app reaches people. Device testing · App Store · Google Play 06 ### Keep improving after launch. Plan maintenance, OS updates, dependency changes and the next useful features. Use support feedback and agreed product metrics to decide what needs attention next. Maintenance · updates · product iteration 03 / Start with a conversation ## What should your app make possible? Tell us who will use it, what they need to do and where you are today. We’ll work through the scope, technical choices and a practical next step. [Discuss your mobile app](https://rdcopilot.com/contact/?service=mobile-apps) ### Useful things to bring - The people and problem you are building for - A sketch, brief or the app you already have - The platforms and systems it needs to connect to - Your priorities, budget range and timing An early idea is enough to start. [Already working with us? Sign in](https://account.rdcopilot.com/login?lang=en)