Application development agency
An application development agency designs and codes software for your company, from scoping to going live. The market has hundreds of them, from the solo freelancer to the fifty-person studio, and their quotes for the same project run from one to five times each other. Picking the right one is not about reputation or size. It's about concrete criteria, listed here.
First sorting to do before anything else: mobile or web application. Many projects people picture as "a mobile app" really only need a web application, reachable from a browser on phone and on desktop alike. It's faster to build, cheaper to maintain, and free of the app stores. If your need is a business tool — manage, track, automate — it's almost always web you want, not an app to download.
An agency that refuses to give a price range before three meetings is preparing a layered quote. The good ones know how to bound and quote fast.
Demand that the source code be delivered to you. Without it, you're locked into the agency for the smallest change, for life.
Run from the monolithic project delivered "in six months". An agency that ships a first working version in a few weeks cuts your risk at every stage.
If the person who understands your problem isn't the one who codes, the information gets lost between the two.
A good partner will tell you when an existing tool is enough, when your scope is too big, when to cut. The one who says yes to everything sells time, not a solution.
Your application will have to talk to your existing tools and live after delivery. An agency that mentions neither leaves you with a technical orphan.
On a typical agency quote, the share that actually funds the development rarely tops a quarter of the total. The rest pays a middle project manager, a sales structure, offices, a margin, and months of scoping. You're paying for an organization as much as for software. That's why two agencies quote the same application at 18,000 € and at 90,000 € without either being dishonest: they're not selling the same cost structure. Before comparing quotes, look at what each euro actually funds.
| Solo freelancer | Large IT firm / big agency | Small specialized agency | |
|---|---|---|---|
| Price | Low up front | High (structure, margin) | Controlled |
| Risk | Disappearance, single point | Slow, heavy | Low with staged delivery |
| For whom | Small one-off need | Large group, big budget | SME wanting a business tool |
| Weak spot | No backup if absent | You mostly pay the structure | Limited capacity in parallel |
The solo freelancer costs little but sometimes vanishes mid-project, with no backup. The big firm reassures but mostly bills you its structure. For an SME that wants a business tool delivered fast without breaking the bank, a small specialized agency that ships brick by brick is usually the best trade-off.
In 2026, expect 15,000 to over 100,000 € on the traditional market depending on complexity, largely billed by time spent. That time-based model has a built-in flaw: the slower the agency, the more it earns. Our stance is the opposite: 5,000 € per brick, fixed price, two weeks, source code delivered. No hour counter, no endless quote. If your application is bigger than one brick, we cut it and you start with the one that holds the most value. For the details, see our page on the cost of developing an application.
Discovery call: we understand your business and your real problem.
Technical call: we dig into data, constraints, and integrations.
A clear spec page: you validate, go or no go.
Mockups of every page: you picture it before the code.
Go, the clock starts: fifteen days, the application is delivered.
Development never starts in the dark. If you're still unsure about scope, read our guide on the custom web application, or look at the custom software example.
If you want an agency that states a price, ships in two weeks, and hands you the code, start by describing your need. We'll tell you if it's doable, which brick to start with, and what it costs.