How to Choose an App Development Company

In short: to choose an app development company, first write a one-page brief (problem, users, must-have features, platforms, budget range, deadline). Then shortlist three or four teams and compare them on the same points: relevant work you can actually open, how they would scope a first version, what exactly is in the price, who owns the code and accounts, how testing and store publishing are handled, and what support looks like after launch. Prefer the team that asks hard questions about scope over the one that agrees to everything.

Below is the checklist we would use ourselves if we were hiring an app agency – with the questions to ask, the answers worth hearing and the red flags that should end the conversation.

Step 1: prepare a one-page brief

You cannot compare proposals that answer different questions. A short brief makes every agency quote the same thing. Include:

• The problem and the user – who uses the app and what job it does for them.
• Must-have features for the first version, and a separate "later" list.
• Platforms – iOS, Android, both, or also web.
• Integrations – payments, login methods, maps, CRM, existing systems.
• Budget range and deadline – a range is fine; it tells the agency what scope is realistic.
• Constraints – data protection, accessibility (for example the European Accessibility Act if you sell to EU consumers), industry rules.

If you are not sure what belongs in the first version, read our MVP guide first.

Step 2: the evaluation checklist

Step 3: compare quotes on scope, not on the headline number

Two quotes of €10,000 and €25,000 are rarely for the same thing. Before you compare, put them side by side and check:

• Platforms – one platform or both? One cross-platform codebase or two native apps? Our native vs. cross-platform guide explains the cost difference.
• Design level – a clean standard UI, custom UI/UX, or a bespoke design system with animations.
• Backend – user accounts, database, admin panel. Many cheap quotes assume these already exist.
• Integrations – each payment provider, identity provider or external API adds work.
• Testing and publishing – App Store and Google Play preparation is real work, and new personal Google Play developer accounts have to run a closed test with at least 12 testers for 14 consecutive days before production access.
• Support – bug fixes and OS updates after launch.

Our own packages are published so you can use them as a reference point: MVP Start from €4,900, Startup App from €9,900, Business App from €19,900, Enterprise / Fintech priced individually. See what each package includes and the app development cost guide.

Step 4: check ownership and the contract

This is the step founders skip and regret. Make sure the contract or order clearly covers:

1. Intellectual property – the source code and designs you pay for are transferred to you.
2. Accounts – the app is published under your Apple Developer Program membership (99 USD per membership year) and your Google Play developer account (a one-time US$25 registration fee). Cloud, analytics and repository accounts are in your company's name.
3. Acceptance – how a milestone is accepted and what counts as a bug versus a new feature.
4. Change requests – how new ideas during the project are priced and scheduled.
5. Data protection – if the team will touch personal data of EU users, the GDPR requires a written processor agreement (Article 28).
6. Support – the length of included support and the terms afterwards.

This is general information, not legal advice; have important contracts reviewed by a lawyer.

How to check a portfolio and references

A portfolio page proves that a team can make screenshots. These checks take an hour and tell you much more:

• Download the apps. Use them for ten minutes on your own phone: speed, crashes, how sign-up and the main flow feel.
• Look at the store listing. When was the app last updated? An app that has not been updated for years says something about maintenance.
• Ask what exactly they built. Design only, the mobile app, the backend, or everything? Agencies often contribute to part of a product.
• Ask about a project that went wrong and what they changed afterwards. A thoughtful answer is a better signal than a perfect record.
• Talk to a client if the agency can arrange it, and ask about communication, deadlines and support after launch.

Red flags

• A fixed price before anyone has asked about your users, features or integrations.
• "We can build anything in four weeks" without seeing the feature list.
• No mention of testing, store publishing or what happens after launch.
• Portfolio items you cannot find in the stores or verify in any way.
• The agency wants to publish the app under its own developer account.
• Reluctance to sign an NDA or to put ownership of the code in writing.
• No single person responsible for your project.

Local, nearshore or offshore?

Location matters mostly for communication. A team in your own time zone makes daily collaboration easy; a team several hours away can still work well if decisions are written down and calls are scheduled. Companies in Sweden, Norway and Denmark share a working day with Central Europe; US companies get a short overlap and work more asynchronously. We compare the options in nearshore app development in Europe.

How we answer these questions

We would rather you check us against this list than take our word for it. Here is what we publish on our mobile app development page:

• A seven-step process: consultation, MVP and feature planning, UX/UI design, development, testing, publication, support and growth.
• Starting prices for four packages and a cost calculator; the final price is set after a short consultation.
• Android and iOS apps, with a cross-platform or tailored approach depending on the project.
• Help with App Store and Google Play publishing.
• NDAs on request.
• One year of free technical support for every completed app, then an optional long-term service contract.

Have a brief ready? Send it to us and we will tell you how we would scope the first version.

FAQ

How do I choose a mobile app development company?

Write a one-page brief, shortlist three or four teams, and compare them on the same criteria: relevant live apps, how they would scope your first version, what is included in the price, ownership of code and accounts, testing and publishing, and support after launch.

What questions should I ask an app developer before hiring?

Ask what they would cut from your first version, what exactly the quote includes, who owns the code and store accounts, how they test before release, who your day-to-day contact is, and what support costs after launch.

Should the app be published under my account or the agency's?

Under yours. Your own Apple Developer and Google Play accounts keep the listing, reviews, users and revenue with your company if you ever change developers.

Is a fixed price or an hourly rate better for an app project?

For a clearly scoped first version, a fixed scope and price makes budgets predictable. For ongoing development after launch, a service agreement or planned releases usually work better. Either way, the scope behind the price matters more than the model.

How many agencies should I get quotes from?

Three or four is usually enough to see a realistic range. More than that tends to produce quotes that answer different briefs and are hard to compare.

What is a red flag when hiring an app agency?

A firm price before anyone asks about users and features, promises of very short timelines without seeing the scope, no plan for testing and publishing, or a wish to keep the app under the agency's own developer account.

Sources (checked 2 November 2026): Apple — Apple Developer Program enrollment (99 USD per membership year); Google — Play Console registration (US$25 one-time fee) and testing requirements for new personal developer accounts; Regulation (EU) 2016/679 (GDPR), Article 28. VIA Marketing process and prices as published on via-marketing.cz/en/mobile-apps.