Ship it, then keep it
An app that stops working after the next OS release was never finished. We plan for the maintenance from the first sprint, because we are the ones who will be doing it.
About Us
Transforming ideas into digital reality
ValueInfinity Digital Services is a small mobile development studio. We build educational and utility apps for iOS and Android — and then we keep running them.
Our Story
Built from a problem we had ourselves
The first app existed because the tools for preparing for the TCF were bad. Everything since has followed the same pattern: a real problem, a small focused product, and the patience to maintain it.
The beginning
One exam, one app
TCF Coach started as a study tool for a French exam whose existing apps were either abandoned or wrong. Building it properly meant learning what exam prep actually needs: honest scoring, spaced repetition, and offline access.
Growing
A second exam, a shared foundation
Exam Civique reused everything TCF Coach had proved out — the practice engine, the progress model, the edge backend — and added the civic content the naturalisation interview tests.
Widening
Beyond education
Etat Des Lieux PDF took the same offline-first discipline somewhere else entirely: property inspections, where the phone has no signal and the output has to be a document both parties can sign.
Now
Building for others
Three apps in production taught us what we are actually good at. We now take that same approach to client work — mobile products, edge infrastructure, and the long tail of maintenance that comes after launch.
How We Think
Four things we will not compromise on
Offline is not an edge case
People study on trains and inspect flats in basements. If your product only works on good WiFi, it does not work.
Small teams, direct contact
You talk to the people writing the code. No account manager relaying requirements into a queue.
Say no early
If a project is not a fit, we say so in the first conversation rather than three months in. It costs us work and saves you far more.
ValueInfinity by the numbers
3+Apps launched
1,000+Happy users
100+5-star reviews
5+Years experience
How We Work
Four steps, no surprises
Short cycles with something real at the end of each one, and a channel where you can see it happening.
Discover
What the app has to do, who for, and what success looks like — settled before anyone writes code.
Design
Flows and screens against your real content, reviewed on device so nothing surprises you at the end.
Build
Short cycles, a working build at the end of each, and visible progress in between.
Launch & support
Store submission, monitoring, and the updates that keep it running once real users arrive.
Our Stack
Chosen for the next five years, not the demo
Everything here we run in production ourselves. We do not recommend tools we have not had to debug at 2am.
Native mobile
Swift and Kotlin where it matters, cross-platform where it does not.
Cloudflare Workers
Edge APIs that start in under a millisecond and scale to zero.
D1 and KV
SQL where you need relations, key-value where you need speed.
Local-first sync
The device is the source of truth; the server reconciles.
Accessibility built in
WCAG 2.1 AA as a starting point, not a retrofit before launch.
Privacy by default
Collect the minimum, store it in the EU, delete it when asked.
Let's build something amazing
Tell us what you have in mind and we will come back within one business day.