Short answer: choose a mobile app development company based on shipped apps you can download and test, direct access to the engineers who will build your product, a documented discovery-to-launch process, transparent fixed-scope pricing, and a post-launch maintenance plan. Certifications such as ISO 9001 (quality) and ISO 27001 (data security) are strong trust signals; a beautiful portfolio page alone is not.
1. Test their live apps, not their portfolio page
Anyone can publish attractive screenshots. Ask for App Store and Google Play links and use the apps yourself. Check load times, crashes, reviews and the update history — an app that hasn't shipped an update in a year tells you what post-launch support really looks like.
2. Meet the actual engineering team
Many agencies sell with senior staff and deliver with subcontractors. Ask directly: who will write the code, where are they based, and will you have direct communication with them? Insist on meeting the lead developer before signing.
3. Look for a written discovery process
Serious companies run a discovery phase — requirements, user stories, wireframes and a technical architecture document — before quoting a fixed price. If a company quotes a total price in the first call without discovery, the number is a guess and the scope disputes will come later.
4. Check platform strategy advice, not platform bias
A good partner asks about your users and budget before recommending native (Swift/Kotlin), cross-platform (Flutter, React Native) or a progressive web app. A company that gives one answer for every client is selling what it knows, not what you need.
5. Demand transparent pricing structure
In 2026, typical ranges are: a simple MVP at USD 10,000–30,000, a mid-complexity business app at USD 30,000–80,000, and complex platforms above USD 100,000. Indian development companies typically deliver the same scope 40–60% below US/EU agency rates. Whatever the number, it should be broken into milestones with acceptance criteria.
6. Verify quality and security certifications
ISO 9001:2015 certification means the company's delivery process is independently audited every year. ISO 27001:2022 means your source code, credentials and user data are protected by an audited security management system. Ask for certificate numbers and verify them with the issuing body — genuine certificates are always verifiable online.
7. Review communication cadence
Weekly sprint demos, a shared project board you can open any time, and a named project manager are the minimum. The most common cause of failed app projects is not bad code — it is silence between milestones.
8. Ask about code ownership and handover
The contract must state that you own the source code, the repositories, the app store accounts and all design assets. Documented handover should be a deliverable, not a favour.
9. Insist on a post-launch plan
Apps need OS-version updates, security patches, crash monitoring and feature iterations. Ask what the first 12 months after launch cost and include. A company with no maintenance offering is planning to disappear at launch.
10. Check independent reviews
Cross-check Clutch, GoodFirms and Google reviews. Talk to at least one past client on a call — five minutes of honest conversation beats fifty written testimonials.
Questions to ask before you sign
- Which three apps that you built can I download right now?
- Who exactly writes the code, and do I get direct access to them?
- What does your discovery phase produce, and what does it cost?
- What are your ISO certificate numbers and where do I verify them?
- What happens in month 13 — who maintains the app and at what cost?
Red flags
- A fixed total price quoted before any discovery.
- No live apps you can actually test.
- Code ownership not written into the contract.
- "Unlimited revisions" promises — a sign of no process.
- No named engineers, only a sales contact.
The bottom line
Choose the company that shows you working apps, real engineers, an audited process and a maintenance plan. At ITSolvez we build iOS and Android apps for clients across India, the UAE, UK, USA, Singapore and Australia under ISO 9001, ISO 27001 and ISO 20000-1 certified processes — and every certificate we hold is publicly verifiable on our certifications page.