What we do
The work starts with choosing the approach: cross-platform to cover both systems at lower cost, or native when graphics performance or hardware access demands it. This choice determines both the development budget and the maintenance budget for several years.
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1
Choosing the technical approach
Deciding between cross-platform and native based on the expected features and the maintenance budget.
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2
Mobile journey design
Screens adapted to touch use and to each system's conventions.
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3
App development
Building the screens and processing, managing caching and synchronisation.
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4
Testing on real devices
Checks on several models, screen sizes and system versions, including older devices.
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5
Publication and updates
Preparation of store listings, submission and management of updates as the systems evolve.
Tech stack & tools
The technologies and platforms we use for this type of assignment.
- React Native
- Flutter
- iOS
- Android
- Firebase
- REST API
Methodology
Systematic testing on physical devices, including entry-level models: that is where the performance problems hidden by emulators come to light.
What's included
A detailed list of what you receive at the end of the assignment.
- Reasoned choice of technical approach
- iOS and Android development
- Adaptation to each platform's conventions
- Offline handling and synchronisation
- Push notifications configured
- Testing on a variety of real devices
- Preparation and submission to the stores
- Support through to approval
Indicative timeline: 10 to 20 weeks depending on scope, excluding store review
Training & certifications
The core skills and continuous learning behind this area of expertise.
- React Native practices and the Flutter ecosystem
- Official Apple Human Interface Guidelines and Material Design
- App Store and Google Play review rules
- Monitoring of the yearly changes to iOS and Android
- Performance and battery management best practices
Experience & expertise
The kinds of assignments this expertise covers day to day.
- Cross-platform mobile apps published on both stores
- Apps connected to APIs and business back offices
- Setup of push notifications and offline synchronisation
- Updates delivered in step with system changes
Why choose us
Honest technical advice
If a progressive web app is enough for your needs, we will tell you rather than sell you a native app.
Tested on real phones
Testing includes older devices, where real performance problems show up.
Controlled publication
Apple and Google review rules are anticipated, which limits rejections and delays.
Maintenance planned ahead
The annual upkeep cost is stated from the start: an app that is not maintained ends up removed from the stores.
Our packages
Indicative prices, adjusted after we discuss your project.
One-off assignment
from €750
Update or fix
- Fix or new feature
- Testing on real devices
- Store update
- Technical report
Project package
from €9,000
Complete application
- iOS and Android
- Design and development
- Push notifications
- Assisted publication
- Warranty after publication
Ongoing support
from €990 / month
Ongoing app support
- System updates
- Regular improvements
- Review monitoring
- Priority fixes
All our prices are indicative. Contact us for a free personalised quote.
Related services
The services this expertise is most often involved in.
Web application development
Custom web tools tailored to the specific needs of your business.
Learn moreExpertise FAQ
Not always. If you only need people to look up information, a well-designed website costs much less. An app is justified for notifications, offline use or very frequent use.
Allow for the developer accounts (€99 for Apple, a one-off €25 for Google) and a maintenance contract. Without updates, an app becomes incompatible within one to two years.
Yes, and it is strongly recommended: the app then remains your property, regardless of your provider.
Rejections always state the reason. We fix it and resubmit; support through to approval is included in our packages.
Development takes ten to twenty weeks, plus a few days for store review.