Service
Mobile App Development
We design and build cross-platform mobile apps for iOS and Android, from booking and loyalty apps to full products, and handle the App Store and Google Play launch.
The problem
Your customers live on their phones. Your business doesn't, yet.
A mobile website gets visited once. An app sits on the home screen, sends a reminder at the right moment and makes rebooking or reordering a two-tap habit. The hard part is building one people keep: most apps get deleted within days because they are slow, confusing or do nothing the website couldn't. We build apps around the one or two jobs your customers repeat most, then make those jobs effortless.
What changes for you
- A direct channel to customers through push notifications, with no ad spend per message
- Repeat bookings and orders become a habit instead of a search
- Less admin as customers self-serve what they used to phone about
Why it works
- One codebase for iOS and Android keeps cost down
- Native-feeling design and performance
- Push notifications keep customers coming back
What you get
- 01App strategy, UX and UI design
- 02React Native and Flutter development
- 03Backend, APIs and admin panel
- 04App Store and Google Play publishing
- 05Analytics, updates and maintenance
Use cases
What we can do for you.
Booking and appointment apps
Clients see live availability, book, pay a deposit and get reminders. Ideal for spas, clinics, salons, studios and service businesses.
Loyalty and membership apps
Digital punch cards, points, member pricing and exclusive offers that bring regulars back more often.
Customer portals
Order tracking, invoices, documents, messages and support in one place, so customers stop calling to ask for updates.
Field and staff apps
Job lists, checklists, photos, signatures and time tracking for teams on the road, synced to the office in real time.
How it runs
How a project runs.
Typical timings. We confirm yours in a fixed scope before any work starts.
- 01
Week 1
Discovery and scope
We map the core user journeys, decide what goes in version one and what waits, and give you a fixed scope and timeline.
- 02
Weeks 2–3
UX and UI design
Clickable prototypes for iOS and Android that you can try on your own phone before a line of code is written.
- 03
Weeks 4–10
Build in sprints
We ship a working build to your phone every week through TestFlight and Google Play testing, so you see progress, not promises.
- 04
Weeks 10–12
Testing and store launch
Device testing, App Store and Google Play listings, screenshots, privacy forms and review submission handled for you.
- 05
Ongoing
Grow and maintain
Analytics, crash monitoring, OS updates and a roadmap of improvements based on how people actually use the app.
Tools and platforms we use
- React Native
- Expo
- Flutter
- Swift / Kotlin when needed
- Firebase
- Supabase
- Stripe & Apple / Google Pay
- OneSignal push
- App Store Connect
- Google Play Console
Proof
Related work.
Why PlanB Digital?
We ship our own apps
Ylper, our AI sales assistant, runs on the web, as a mobile app and as a Windows desktop app. We design for daily use, onboarding and support, not just launch day.
One team end to end
Design, app, backend, admin panel and the marketing to get downloads, without juggling three vendors.
You own everything
The code, the store accounts and the data are yours. No lock-in, no hostage situation if you change partners.
Frequently asked questions
Native or cross-platform?
For most businesses cross-platform is faster and cheaper with no visible difference. We recommend native only when an app needs heavy device features.
Can you help after launch?
Yes. We offer maintenance plans covering OS updates, bug fixes and new features.
How long does an app take to build?
A focused first version usually takes 8 to 12 weeks from kickoff to the stores. Larger products are split into phases so you launch sooner and learn from real users.
How much does an app cost?
It depends on screens, integrations and backend work. Try our free App Cost Estimator for a ballpark in hours, then we give you a fixed quote after a scoping call.
Will Apple and Google approve it?
We follow both stores' guidelines from the design stage and handle the submission. If a reviewer asks for changes, we make them and resubmit at no extra cost.
Can the app connect to my existing systems?
Yes. We connect to booking tools, POS, CRMs, payment providers and custom databases through their APIs, or build the backend if you don't have one.
Popular with
Pairs well with
Ready to grow faster?
Book a free strategy call. We'll audit your current marketing and show you exactly where the growth is.