Unreliable connectivity
Users lose signal mid-transaction or in rural areas. We build offline-first flows with local queues, optimistic UI, and background sync when connectivity returns.
Software Engineering
Mobile apps users love
Reach customers on the devices they use every day. Cross-platform iOS and Android apps with offline support, M-Pesa payments, push notifications, and backends built for real network conditions.
iOS +
Android
One codebase, two stores
8–12
Week MVPs
Typical first release
Offline
First design
Sync when connected
100%
Store support
Submission & releases
Mobile-first for the markets you serve
Across , mobile is the internet — not the desktop. Users expect apps that work on low bandwidth, survive intermittent connectivity, integrate M-Pesa without friction, and feel fast on mid-range Android devices. LesterTechLabs builds cross-platform apps with React Native and Flutter, pairing polished UX with offline-first architecture, secure API integration, and full App Store and Google Play launch support.
Mobile app
React Native or Flutter — iOS and Android from a single codebase
Offline & local storage
SQLite, AsyncStorage, background sync, and conflict resolution
API & realtime
REST/GraphQL backends, WebSockets, Firebase, and push notification services
Payments & identity
M-Pesa, Paystack, biometrics, OTP, and secure token storage
Your Product
9:41
Payment received
KES 1,500 via M-Pesa — synced to your account.
-
Works offline
Queue actions, sync when back online
-
M-Pesa built in
STK Push & payment confirmations
-
Push alerts
Orders, messages, and status updates
RUN eas build --platform all
Build succeeded
{{ body|default:"{
\"status\": \"success\",
\"data\": { ... }
}" }}Challenges we solve
Mobile challenges unique to the markets you serve — and how we engineer apps that work in the real world.
Slow devices and limited data
Heavy apps frustrate users on entry-level Android phones. We optimize bundle size, lazy-load assets, cache aggressively, and profile performance on real devices.
Payment friction
Global payment SDKs often miss M-Pesa and local rails. We integrate STK Push, Paybill, and mobile money with clear confirmation states and receipt history.
App store complexity
Review rejections and certificate issues delay launches. We handle provisioning, store assets, privacy policies, and submission through approval.
What we deliver
Core capabilities included in every mobile applications engagement.
Cross-platform apps
React Native or Flutter builds for iOS and Android with shared business logic and native modules where needed.
Offline-first architecture
Local databases, sync engines, and conflict handling for unreliable network environments.
M-Pesa & payments
STK Push, Paystack, and in-app payment flows with transaction history and retry logic.
Push notifications
Firebase Cloud Messaging for engagement, order updates, and transactional alerts.
App store launch
Google Play and Apple App Store submission, screenshots, ASO basics, and release trains.
Analytics & monitoring
Crashlytics, performance monitoring, and product analytics from day one of beta.
Where this fits
Common scenarios we deliver this service for, in any country.
FinTech & wallets
Mobile money, savings, lending, and payment apps with M-Pesa and KYC flows.
On-demand services
Ride-hailing, delivery, booking, and field-service apps with GPS and push alerts.
Retail & e-commerce
Catalog browsing, cart checkout, order tracking, and loyalty programs offline-capable.
Health & education
Telemedicine, patient records, LMS, and offline content for clinics and schools.
Key benefits
- Single codebase for iOS and Android — ship faster without doubling engineering cost
- Offline-first UX that keeps working when the network doesn't
- M-Pesa and local payment rails integrated from the first release
- App Store and Google Play submission handled end-to-end
- Crash reporting and analytics so you fix issues before users churn
Why LesterTechLabs
-
Cross-Platform
One codebase for iOS and Android with native-quality UX.
-
Offline-First
Works reliably even on unstable mobile networks.
-
Store Ready
Full app store submission and release management.
Our process
A proven delivery framework from kickoff to production.
-
01
UX & prototyping
User flows, wireframes, and clickable prototypes validated before development.
-
02
Sprint development
Feature builds with TestFlight and internal Android tracks every two weeks.
-
03
QA & beta
Real-device testing, performance profiling, and feedback from pilot users.
-
04
Store launch & iterate
Production release, monitoring, OTA updates, and roadmap based on analytics.
Technologies we use
Modern, battle-tested stacks for production workloads.
Related services
Other software engineering offerings you may need.
Frequently asked questions
Common questions about mobile applications.
Do you build native or cross-platform apps?
We primarily use React Native and Flutter for cross-platform delivery — one team, one codebase, both app stores. Native Swift/Kotlin modules are added when platform-specific features like advanced biometrics or background services require it.
Can the app work offline?
Yes. Offline-first is our default for market apps. We implement local storage, queued actions, optimistic UI updates, and background sync so users can browse, fill forms, and queue payments even without connectivity.
Do you handle App Store and Google Play submission?
Yes. We manage developer accounts, provisioning profiles, store listings, screenshots, privacy policies, and review responses — so you launch on both stores without navigating Apple and Google bureaucracy alone.
How long does mobile app development take?
Focused MVPs with core flows, auth, and one integration typically ship in 8–12 weeks. Feature-rich consumer apps with payments, offline sync, and admin tools run 12–20 weeks depending on scope and design complexity.
Can you integrate M-Pesa and mobile payments?
Yes. We integrate M-Pesa STK Push, Paybill, B2C, Paystack, and Flutterwave with in-app confirmation screens, receipt history, failed-payment retry, and webhook reconciliation on the backend.
Do we own the app source code?
Yes. Upon project completion and payment, you receive full ownership of all custom mobile code, assets, and documentation — including store listings and CI/CD configuration.
Software Engineering
Ready to launch your mobile app?Mobile Applications?
Share your product idea, target users, and must-have integrations — we'll propose the right stack and timeline with a tailored quote within 48 hours.
- Free estimate · reply in 1 business day
- Production delivery · remote-first
- M-Pesa, cloud, and AI ready
Next step
Start your project
- 1 Tell us about your goals
- 2 Get a tailored proposal
- 3 Ship with LesterTechLabs