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Mobile Apps·Cross-platform

Apps people open.Not apps they delete.

React Native for cross-platform reach, Swift or Kotlin when native performance is non-negotiable. Shipped to both stores.

Start this projectSee our workReplies in < 24 hours
4.8★
Avg. store rating
< 400ms
Cold start time
3 mo
Post-launch support

70% of apps are deleted within 72 hours. The ones that stay feel like they were built for you, personally. That is not an accident.

Great mobile products are not scaled-down websites. They respect the thumb zone, the notification permission moment, the first-launch experience that determines whether the user comes back tomorrow. We design for real behavior, not happy-path flows.

We ship to both stores. No "iOS first, Android later" compromises unless your data says otherwise. TestFlight and Google Play beta programs run with 50+ real users before any production release. Bugs found by us, not your customers.

"The moment a user has to read an instruction, the design has already failed."

CodeFlee mobile design review

A repeatable process.
No surprises.

Product Definition

1–2 wks

Jobs-to-be-done mapping, user flow diagrams, and technical architecture. We align on what success looks like — in measurable terms — before anything is designed.

UI/UX Sprint

2–3 wks

High-fidelity Figma prototypes tested with real users. We validate the flows before development starts, not after you've already paid for the wrong feature.

MVP Development

4–8 wks

React Native or native Swift/Kotlin — chosen by what your app actually needs. Two-week sprints, demo calls every Friday, working builds available daily via Expo Go or TestFlight.

Beta Testing

1–2 wks

Real users on real devices. TestFlight and Google Play Internal track with 50+ testers. We iterate on what actually breaks, not what we assumed would break.

Store Submission

1 wk

App Store and Google Play submission with optimized listing, screenshots, preview video, and launch-week monitoring. We stay on until the review passes.

What it looks like
when shipped.

A real mobile apps engagement — built end-to-end in 10–18 weeks.

Live · 2024
4.8★
Avg. store rating
< 400ms
Cold start time
3 mo
Post-launch support
See the case

Every deliverable.
No ambiguity.

$18,000
Starting investment
10–18 weeks

iOS + Android apps

Published to the App Store and Google Play, with source code and signing certificates.

Push notifications

Configured with deep-link routing, A/B tested copy, and delivery analytics.

Analytics integration

Amplitude or Mixpanel with key events, funnels, and retention dashboards.

Authentication

Social login, biometrics, and secure token management with refresh rotation.

Offline support

Core features work without internet using optimistic updates and local caching.

In-app purchases

RevenueCat integration with subscription management and entitlement logic.

Store assets

App Store screenshots, preview video, Google Play feature graphic, and listing copy.

90-day support

Bug fixes, OS update patches, and minor feature iterations for 3 months post-launch.

CodeFlee shipped what three previous agencies couldn’t — on time, without drama, and with code our team actually wants to work in.

Founder, Series A startup
Verified client · 2024
★★★★★
Technologies we work with
React NativeExpoSwiftKotlinFirebaseRevenueCatAmplitudeFastlaneTestFlightGraphQLZustandMMKVReact NativeExpoSwiftKotlinFirebaseRevenueCatAmplitudeFastlaneTestFlightGraphQLZustandMMKV

Most agencies do this.
We do the opposite.

Typical agency
CodeFlee
Hourly billing surprises
Fixed-price scope, paid in milestones
Junior teams behind the proposal
Senior engineers from kick-off to launch
Mid-project radio silence
Bi-weekly demos and a Slack you actually want
Locked codebase or vendor lock-in
You own the code, repos, infra — day one
"Done" means deployed and ghosted
30 days of bug fixes baked in
Sub-agencies stitched together
One full-stack team — design through deploy
The promise

Four reasons
this is a safe yes.

Free discovery call

A 30-min strategy call before you commit a dollar.

Fixed-price scope

No hourly billing surprises. You see the number up front.

You own the code

Source, repos, infrastructure — yours from day one.

30-day post-launch

Bug fixes and minor iterations included after we ship.

Let’s answer
the obvious ones first.

Direct answers to what every prospect asks before our first call. If yours isn’t here, ask us on the call.

Ask your own question →
2 spots open this quarter

Ready to build something
worth using?

Tell us about your project. We reply within 24 hours with an honest assessment and a rough scope — no sales pressure.

60+
Products shipped
98%
Repeat rate
12
Countries
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