How to Find a Good App Developer in London

Find a London app developer by reviewing their live published apps (not just mockups), checking their tech stack matches your needs, and verifying they have shipped to both App Store and Play Store. Avoid developers who pitch a technology before understanding your requirements.

Where to look

1. Clutch.co: Verified reviews and project examples, filterable by London and technology
2. The Manifest / DesignRush: Curated agency lists with portfolio reviews
3. Direct referrals: Ask founders in your network who built their apps
4. GitHub / open source: If you need specific tech expertise, check their code

Questions to ask every developer

1. Can I download and use 3 apps you have shipped in the last 12 months?
2. Who will actually work on my project (seniors or juniors)?
3. Do you provide fixed-price or time-and-materials quotes?
4. What happens if we go over scope?
5. Do you handle App Store / Play Store submission?
6. What does post-launch support look like?

Red flags

• No live apps in the App Store or Play Store — only screenshots and concepts
• They recommend Flutter, React Native, or native before understanding your requirements
• No mention of testing, QA, or crash monitoring
• Unwillingness to provide a fixed-price quote for a defined scope
• Offshore-only team with no London presence for face-to-face meetings

How to structure the engagement

Start with a paid discovery phase (1–2 weeks, £2,000–£5,000). This produces wireframes, technical architecture, and a fixed-price quote for the build. Never skip discovery — it is the single best investment for preventing budget overruns.