Mobile App Design & Development
A mobile app design agency that ships, not just designs.
We design and build iOS, Android, and cross-platform apps with senior product designers and engineers in the same room. From product concept to App Store.
What a mobile app engagement with Otther includes
Product strategy & concept
We start with the user, the job-to-be-done, and the business case — not the wireframe. Product clarity before any pixel ships.
UX research & flows
User interviews, JTBD analysis, flow maps, and prototypes. The app you build is the one your users will actually use.
UI design system
Component library, tokens, and patterns for iOS HIG and Material 3. Built so your team extends it without us.
Native or cross-platform build
React Native, Flutter, or fully native iOS/Android — we pick what your roadmap actually needs, not what is trendy.
Backend & integrations
API design, auth, payments, push notifications, analytics. Backend choices that scale with the product, not the slide deck.
App Store launch
App Store and Play Store submission, review handling, screenshots, ASO basics. We hand you a live app, not a TestFlight link.
How we ship a mobile app
- 01
Concept
Product discovery, user research, JTBD mapping, and a one-page product brief. Goes/no-go decision before design starts.
- 02
Design
Low-fi flows for the critical 5 screens, then high-fi design through the system. Interactive prototype tested with real users before we write code.
- 03
Build
Two-week sprints, weekly demos. A senior squad shipping working app builds — not a roadmap.
- 04
Launch
App Store + Play Store submission, ASO, post-launch monitoring (crash rate, retention, key flows). We stay through launch + 30 days.
Why founders pick Otther for their app
- Senior product designers and engineers in the same squad. Less translation, faster decisions.
- Onboarding in less than 7 days. We pick up your repo and your Figma, not the other way around.
- We say no to scope creep — fewer features that work, not more features that ship late.
- iOS, Android, and cross-platform under one roof. We recommend the right stack, not our favorite.
- Bi-weekly strategic review with the founders, not a PM proxy.
- No legal or labor overhead. We are partners, not headcount.
Mobile app design — frequently asked
- iOS only, Android only, or cross-platform?
- It depends on the audience and the roadmap. We help you decide in week one — based on your users, your team, and your business case. We have shipped on all three.
- How long does an MVP take?
- A scoped MVP typically ships in 12 to 20 weeks from kickoff. We do not pretend a serious app ships in 6 weeks — those are demos, not products.
- Do you do native iOS and Android, or only React Native?
- Both. We have senior engineers in Swift/SwiftUI, Kotlin/Jetpack Compose, React Native, and Flutter. The stack matches the product, not our resume.
- Can we hire a dedicated squad month-by-month instead of fixed scope?
- Yes — dedicated squad engagements (designers + engineers) are common when the roadmap is evolving. We can also run fixed-scope MVPs when the destination is clear.
- What about post-launch maintenance?
- We offer retainer or transition-out engagements. Either we stay through v2, or we hand the codebase to your in-house team with a transition plan and pairing sessions.
Ready to design your app?
Tell us about your idea, your audience, and your timeline. We will reply within one business day with a discovery proposal.
Start your app project