In short
DevAndCloud builds custom iOS and Android apps, from design to release on the App Store and Google Play. We favour React Native with Expo to cover both platforms with a single codebase, and use Swift or Kotlin when native development is the better fit.
A successful app is more than its screens: it needs a reliable back end, relevant notifications, smooth sign-up, compliance with store rules and stability monitoring after launch. We handle all of it, with a single point of contact.
We start with a prototype tested with real users, then ship test builds from the first weeks. Your app can share its back end and API with your website and include AI features such as an assistant, document scanning or recommendations.
You want to…
- Launch a consumer or business mobile app
- Offer your service on iOS and Android without doubling the budget
- Add payments, push notifications or offline mode to your app
- Take over an unstable or poorly rated app
What we do
Cross-platform iOS & Android
A single React Native / Expo codebase for both platforms, with no compromise on experience.
Native development
Swift and Kotlin when performance or hardware access requires it.
Back end & APIs
Authentication, database, push notifications, in-app payments and subscriptions.
Release & monitoring
App Store and Google Play release, updates, analytics and crash reporting.
Typical use cases
Customer or loyalty app
Accounts, orders, loyalty programme and personalised notifications.
Field app
Jobs, photos, signatures, offline mode and sync when the network is back.
Booking and appointments
Calendar, payment, automatic reminders and cancellations.
Start-up MVP
Validate a concept quickly on both stores before investing further.
SaaS companion app
Mobile access to your web platform, with the same accounts and data.
Subscription app
In-app purchases and subscription management on the App Store and Google Play.
React Native or native: how to choose?
| Criterion | React Native (Expo) | Native (Swift / Kotlin) |
|---|---|---|
| Codebase | One for iOS and Android | Two separate codebases |
| Cost and timeline | Lower | Higher (two builds) |
| Performance | Excellent for the vast majority of apps | Maximum for 3D, real-time or heavy processing |
| Hardware access | Very broad, with native modules when needed | Full and immediate |
| Quick fixes | Over-the-air updates possible within store rules | New version submitted to the stores |
| Best for | Most business and consumer apps | Games, augmented reality, real-time audio or video |
How we work
- 01
Prototype and testing
Key journeys designed and tested with real users before development.
- 02
Iterative development
Test builds on your phone at the end of every sprint.
- 03
Store release
Store listings, screenshots, Apple and Google compliance, submission and review follow-up.
- 04
Post-launch support
Crash reports, usage analytics and updates for new iOS and Android versions.
What you get
- Interactive prototype tested with real users
- iOS and Android apps published on the stores
- Secure, scalable back end
- Automated build and release pipeline
- Usage and stability dashboard
Frequently asked questions
For most projects, cross-platform (React Native) delivers an excellent experience at lower cost and faster. We recommend native for very specific needs (3D, real-time processing, advanced hardware features).
Yes: store listings, screenshots, compliance with Apple and Google guidelines, submission and review follow-up.
Usually 6 to 12 weeks depending on scope, with test builds available from the first weeks.
Almost always, as soon as there are accounts, shared data, payments or notifications. We build it or connect the app to your existing system.
Yes, if your use case requires it: data is stored on the device and synced automatically when the connection returns.
You do. It is published under your own Apple and Google developer accounts, which we help you set up, and you receive the full source code.
Apple and Google update their requirements every year. A maintenance plan covers testing, adjustments and the updates needed to stay published.
Yes. Physical goods and services are paid by card (with Stripe, for example); digital content must go through Apple and Google in-app purchases, as their rules require.
Our other services
Web development
Fast, secure websites, web apps and SaaS platforms built to convert.
- Next.js
- React
- TypeScript
- Node.js
Artificial intelligence
Assistants, agents and AI features built into your products and your data.
- Claude
- OpenAI
- Mistral
- LangChain
AI automation & workflows
Smart workflows that eliminate repetitive tasks and connect your tools.
- n8n
- Make
- Zapier
- Agents IA
Cloud & DevOps
Reliable infrastructure, continuous delivery and hosting for your applications.
- AWS
- Docker
- Terraform
- CircleCI
Have a project in mind? Let's talk.
Tell us what you need: we'll get back to you within one business day with an initial analysis and next steps.