iOS · Android · WebFintech · Shared banking
Switch: shared banking for clubs, teams and friends
4.7★App Store rating
Mobile App Development
Apps people keep on their home screen.
Native and cross-platform iOS and Android apps, from fintech and streaming to connected hardware, designed, built and launched to the stores.
iOS + Android
from one senior team
4.7★
Switch on the App Store
Store-ready
launch & release support
What you getEverything to go from idea to production.
01
Native & cross-platform
Swift, Kotlin, React Native or Flutter, chosen for your product.
02
Payments & wallets
Card issuing, in-app purchases, subscriptions and Apple/Google Pay.
03
Hardware & BLE
Pair and control wearables, sensors and IoT devices.
04
Live video
Streaming, recording and playback at scale.
05
Offline-first
Apps that keep working without signal and sync later.
06
Launch & growth
Store listings, analytics, push and A/B testing.
How we deliver
- STEP 01
Design
Flows and prototype in weeks.
- STEP 02
Build
Two-week sprints, live demos.
- STEP 03
Test
Device lab, beta, QA.
- STEP 04
Launch
Store release and iteration.
Stack by category
Native
- Swift
- Kotlin
Cross-platform
- React Native
- Flutter
Backend & payments
- Firebase
- Stripe
- RevenueCat
Hardware
- Bluetooth LE
Build or buyNative, cross-platform or no-code?
The right choice depends on what the app has to touch, not on fashion.
| Your situation | Our recommendation |
|---|---|
| A content, booking or simple internal app | A no-code builder may be enough |
| Most consumer and B2B products | Cross-platform: React Native or Flutter |
| Deep hardware access, heavy video or extreme performance | Native Swift and Kotlin |
| An existing app that crashes or ships slowly | Code audit first, then stabilise |
Our recommendation: cross-platform by default; native where the hardware or performance demands it.
Typical engagementWhat a mobile app costs and how long it takes.
- 01 · 2 weeks
Discovery Sprint
$5,000fixed fee · 2 weeksFlows, a clickable prototype, the native vs cross-platform decision and a fixed build quote.
- 02 · 6–16 weeks
Fixed-Price Build
$25k–$120kper project · 6–16 weeksiOS and Android apps with backend, QA on real devices, and store release.
- 03 · Ongoing
Dedicated Team
From $12kper month · cancel anytimeOS updates, new features, analytics and A/B tests on a monthly roadmap.
What moves the price: the number of platforms, payment or banking integrations, hardware pairing, offline sync and the admin tools behind the app. Compare engagement models
Selected workShipped with this.
iOS · Android · Web
iOS · AndroidHealth & wellness · IoT
OHM Fitness: an app that controls a 20-electrode EMS suit
20electrodes controlled in real time
iOS · Android · WebMedia · Sports streaming
DubCam: live streaming where fans fund the teams they love
50%revenue share to creators
GuidesRead before you build.
- Engineering · 2 min readNative or cross-platform in 2026? A decision framework for founders
- Fintech · 8 min readFintech app development cost in 2026: real scopes
- Engineering · 2 min readBuilding apps that control hardware: lessons from a 20-electrode EMS suit
- Industries · 3 min readBuilding a creator platform with fair revenue share
FAQCommon questions.
Native or cross-platform?
Cross-platform for most products; native when you depend on deep hardware or extreme performance. We help you choose in discovery.
Do you handle App Store approval?
Yes. Store listings, review guidelines, releases and updates.
Can you take over an existing app?
Yes. We start with a code and architecture audit, then stabilise and extend it.
How much does it cost to build a mobile app?
Most engagements start with a 2-week Discovery Sprint ($5,000 fixed fee, credited to your build), followed by a fixed-price build ($25k–$120k per project, 6–16 weeks) or a dedicated team (from $12k per month). The build price is fixed after discovery and billed in milestones tied to demoed features. Apple and Google developer accounts, backend hosting and payment or card-issuing provider fees are separate running costs we estimate in discovery.
How long does it take to build a mobile app?
Flows and a clickable prototype come out of the two-week Discovery Sprint. A first store release is a fixed-price build of 6–16 weeks; apps with banking, hardware or live video need the longer end of that range.
Do you build for iOS and Android at the same time?
Yes. One senior team ships both, natively or from one cross-platform codebase. Switch, OHM Fitness and DubCam all launched on iOS and Android.
Can the app connect to hardware, payments and our backend?
Yes. We integrate Bluetooth LE devices (the OHM app controls a 20-electrode EMS suit), card issuing and wallets (Switch issues Visa debit cards), subscriptions and your existing APIs.
Who owns the app, the code and the store listings?
You do. Code is in your repository from day one, the apps are published under your own Apple and Google developer accounts, and the IP is yours.
What happens after launch?
Every build includes 30 days of support for fixes and store updates. After that, a monthly retainer or dedicated team handles OS updates, new features, analytics and A/B tests.
Should we use a no-code app builder instead?
A no-code or template builder is fine for a simple content, booking or internal app. Choose custom development when the app moves money, controls hardware, streams video or needs to scale, because those depend on native APIs and a backend you own.
