Softwarethatgetsyouwhereyou'regoing.
We design and build iOS and Android apps that solve real problems, starting with an everyday one: knowing where your train is.
Trains · ItalyChoof. Your train, in real time.
Delays, platforms, live position on the map, every station's board, connections and strikes. All in one fast, clean, ad-free app.
Meet Choof
- 01Android · closed testing
- 02Free, no ads
- 03iPhone coming later
We start from the problem, not the feature list
Every app begins with a concrete, everyday need. First we work out what is actually required, then we decide what to build — and above all what to leave out.
One codebase, two platforms
React Native and Expo let us craft iOS and Android together, with no compromise on the native experience and without doubling the timeline.
Short iterations, frequent updates
We would rather ship small and often: every version arrives finished, and what users tell us shapes the next one.
Guides for train travellers.
Our guides are written in Italian for people travelling by train in Italy: live tracking, strikes, delay compensation.
- 01Come leggere il tabellone dei treni: partenze, arrivi, binari e ritardiCosa significano le colonne del tabellone in stazione, le sigle dei treni (REG, RV, IC, FR), il ritardo e il binario, e come controllare il tabellone dal telefono.3 min read
- 02Come sapere dove si trova un treno in tempo realeGuida pratica per seguire un treno in Italia in tempo reale: dove trovare il numero del treno, come leggere ritardo, ultimo rilevamento e binario, e quali strumenti usare.4 min read
- 03Rimborso per ritardo del treno: quanto spetta e come chiederloTreno Trenitalia in ritardo o cancellato? Quando hai diritto all'indennizzo, quanto spetta per Frecce, Intercity e Regionali, entro quando chiederlo e come fare.3 min read
One developer, studio standards.
MRK SOFTWARE is the studio name of an independent mobile developer. We design and build iOS and Android apps the craft way: few features, each one finished properly.
React Native & Expo
We build with React Native and Expo, for a fluid native experience on both iOS and Android from a single codebase.
Attention to detail
Typography, micro-interactions, performance: every detail gets refined until the app simply feels natural to use.
Our own backend
The services behind our apps run on our own backend, written in Rust on PostgreSQL: fast, reliable and free of needless scaffolding.
- Independent
- 100%
- Platforms
- 2
- First release
- 2026
Let's talk
Got an idea, a question, or just want to say hello? Drop us a line and we'll get back to you as soon as we can.
mrk.devapps+support@gmail.com@mrksoftware on Instagram