Mobile App Development Company in London
Europe's largest fintech market with a 5-hour timezone overlap with Pakistan, post-Brexit appetite for cost-efficient nearshore-quality engineering, and the strictest regulated-software bar outside the US.
London apps live or die on FCA + GDPR compliance evidence
London fintech apps are judged on UK GDPR evidence as much as features: explicit consent flows, answering subject access requests within one month, and a full audit trail of who accessed what. FCA-regulated clients also need that evidence for their own compliance reviews, so we build privacy-by-design defaults in from the first sprint.
Local context
The ICO treats pre-ticked boxes and other manipulative consent designs as invalid consent under UK GDPR and PECR. We refuse pre-checked consent boxes and other dark-pattern requests in design review.
Production track record, not promises
London fintech buyers are right to test vendors on real production work, not slide decks. From our portfolio, HealthiPlate ships consent-aware health data flows on iOS and Android, Falke runs role-based audit logs on top of a multi-tenant Flutter app, and Car Block handles regulated escrow flows with Stripe Connect. The same React Native and Flutter stack we use for those builds supports the audit evidence regulated clients are asked for: privacy by design, granular consent, exportable user data, and a commit history any auditor can read. 50+ shipped products, 52% of clients in 4+ year partnerships, and existing UK clients on the books mean a London team gets a vendor that's already at the bar, not learning it.
Mobile App Development pricing in London vs offshore
Senior-developer hourly rates in London run between $90 and $160 per hour in 2026. Our equivalent senior team delivers the same engineering quality at a fraction of the cost, with 4+ hours of solid afternoon overlap for live collaboration.
| Project tier | DevEntia range | Timeline |
|---|---|---|
| Cross-platform MVP | $25k–$60k | 10–14 weeks |
| Polished v1 | $80k–$180k | 4–6 months |
| Native iOS + Android v1 | $150k–$400k+ | 5–9 months |
Quote ranges assume an average mix of senior + mid-level engineers, design, project management, QA, and DevOps. Final scope is set during a paid 2-week discovery sprint.
Industries we serve in London
We've shipped mobile app development for companies across London's most software-intensive verticals.
- Fintech & Banking
- Insurance Tech
- HealthTech
Our mobile app development stack
Modern, well-maintained tech that London engineering hires can take over without re-platforming.
What's included for London clients
- iOS + Android cross-platform builds
- Native iOS (Swift) and Android (Kotlin)
- App Store + Play Store submission
- Backend APIs and infrastructure
- Post-launch maintenance retainers
Frequently asked by London buyers
How do you handle the timezone gap between London and your team?
We have 4 hours of solid afternoon overlap between Pakistan and London. Most clients run a daily standup at the start of their morning and an end-of-day async update on Slack. For United Kingdom clients we also adjust release windows to local business hours so deployments don't surprise the on-call team.
What's your contracting model for United Kingdom clients?
We run paid 2-week discovery sprints to lock scope, then either fixed-price for tight specs or T&M with a written cap and weekly burn updates. Contracts are governed by English law, with arbitration clauses we'll explain on the first call.
Can you sign an NDA before the first call?
Yes. Send your standard mutual NDA to [email protected] and we'll counter-sign within 24 hours. We don't push our own template unless you don't have one.
Who owns the code at the end of the engagement?
You do, unconditionally. Source code, design files, signing keys, App Store / Play Store accounts: all in your name from week one, transferred at completion if any are temporarily ours during the build.
Mobile App Development in nearby cities
- More Europe cities launching soon.
Other services for London businesses
Ready to build with a London-aware team?
Send us your spec or your raw idea. We'll respond within 24 hours with a structured two-page summary covering scope, timeline, and an honest range, even if our answer is “you don't need a custom build for this.”