A mobile app built for the way you work
A mobile app is only worth building if it solves a real problem: saving your team time, making life easier for your customers, or putting your idea in people’s pockets. At Sonalys, a mobile app development company based in Douala, Cameroon, we start from that problem before we talk technology.
We work with business owners, small and mid-sized companies, non-profits, founders and individuals. You don’t need to speak developer: our job is to turn your needs into simple screens, then into an app that works.
Typical projects include:
- a customer app (bookings, orders, tracking, loyalty);
- an internal app for field teams;
- a payment or tracking app using mobile money such as Orange Money and MTN MoMo;
- a complete platform with a mobile app and a web back-office.
Our process: a first testable version in 15 to 30 days
Our way of working is designed so you see your app take shape and stay in control at every stage.
- Day 0 — free conversation. You tell us about your project, your users and your priorities. We ask the right questions and tell you honestly what is realistic.
- Days 1 to 3 — clickable mockup. You get a mockup you can tap through like a real app. You approve it or change it before development starts.
- Step-by-step development. We build the app in blocks, with a demo every week. You test, you give feedback, we adjust.
- First testable version in 15 to 30 days at most. You install it on your phone and put it in the hands of real users.
- Adjustments, publication and new features. We apply the feedback, publish the app on Google Play and the App Store, then keep improving it with you.
No months-long black box, and no finished product that misses what you had in mind.
A team that works with AI
Our team works with AI as a full team member. It helps us write code faster, generate tests and keep documentation up to date. Every line it produces is reviewed, tested and approved by one of our app developers.
For you, that means shorter timelines and better quality, with humans firmly in charge. It also frees our developers to spend more time on what matters most: understanding your users, getting the details right and testing the app on real devices before every demo. AI is a powerful tool; the decisions and the accountability stay with us.
A real example: Bailor
Bailor is a rental management platform for Africa that we designed and built. It includes two mobile apps: one for landlords and one for tenants.
- Rent paid in cash or through Orange Money and MTN MoMo is recorded automatically.
- Payment reminders go out on WhatsApp.
- Rent receipts are generated automatically.
- Everything runs on Android, iOS and the web.
This is the kind of project we deliver end to end: several user roles, mobile payments, notifications and a back-office.
Working with a remote development team, wherever you are
We are based in Cameroon, but our clients can be anywhere: Africa, Europe or worldwide. Our current projects run in Cameroon and Switzerland, fully remotely. If you want to hire app developers without the overhead of building an in-house team, a remote team like ours is a practical option.
- WhatsApp for quick day-to-day messages;
- video calls for key decisions;
- a demo every week so you can see progress;
- English or French, whichever you prefer.
Whether you are in Europe, North America, or part of the diaspora launching a project back home, it works the same way: one reachable contact, clear milestones and an app you test yourself every week.
What you get
At the end of the project, you own a custom app that is published, usable, and whose source code is yours. Depending on your needs, we pair it with a web back-office or custom software to run your operations, and we can add AI integration, such as an assistant that answers your users’ questions. We also walk you through how everything fits together, so you can make decisions about its future with confidence.
Let’s talk about your project
Every mobile app starts with a conversation. Tell us about your idea: we reply quickly, tell you what is feasible and, after this free first discussion, send you a clear proposal with scope, timeline and price.