Mobile app developer & product builder
Mobile apps,designed and builtby one person.
I'm Siddhesh. I take an idea and turn it into a polished, production-ready app for iOS and Android — design, engineering, launch, and everything after.
Most apps don’t fail because of the code. They fail in the gaps — between the idea, the design, the build and the first real update. I work across all of it, so nothing gets lost along the way.
Approach
One point of contact
You talk to the person designing and writing your app. No hand-offs, no account managers.
Built to be owned
Clean, documented code in your repositories — easy to grow a team around later.
Here after launch
Updates, OS releases, crash fixes and new features, for as long as you need.
Maison — Boutique stays
2025Booking for a small collection of independent homes — slow to browse, fast to book.
Otto — Personal finance
2025Net worth, accounts and spending in one calm view, with bank linking and biometric sign-in.
Journaling · 2024
A daily journal that works offline, syncs quietly and reminds you gently. Subscriptions from day one.
Flutter · Dart · Riverpod · Supabase · RevenueCat
Read the case study
I don't just write code. I take responsibility for the whole product — how it looks, how it works and how it keeps working.
All services- 01
iOS app development
Native iPhone and iPad apps in Swift and SwiftUI — fast, accessible and built the way Apple intended, so they feel at home on the platform from day one.
- 02
Android app development
Native Android apps in Kotlin and Jetpack Compose, tested on the real range of phones your customers use — not just the latest flagship.
- 03
Flutter app development
One Flutter codebase, two polished apps. The fastest sensible route to iOS and Android without the app feeling like a compromise on either.
- 04
React Native app development
Cross-platform apps in React Native and TypeScript — ideal when your team already lives in JavaScript, or when the app should share logic with your web product.
- 05
MVP app development
A focused first version that real users can download — scoped tightly, built properly and ready to grow, not a throwaway prototype.
- 06
App UI/UX design
Flows, wireframes and interfaces designed by someone who also writes the code — so everything you approve can actually be built, on time.
- 07
Backend & API development
Everything users never see but always feel: sign-in that just works, payments that never double-charge and data that’s there when they need it.
- 08
App maintenance & support
Apps are never really finished. A calm monthly plan keeps yours fast, secure and up to date — and keeps improving it.
Authentication
Email, OTP, Apple & Google sign-in, biometrics.
Payments
Stripe, Apple Pay, in-app purchases, subscriptions.
Notifications
Push, scheduling and deep links that respect quiet hours.
Analytics
Events and funnels that answer real questions.
Offline & sync
Apps that keep working on a train and reconcile after.
APIs & data
Well-shaped APIs and admin tools your team will use.
Store release
Screenshots, listings and review, on both stores.
Monitoring
Crash reporting and alerts, before users notice.
- 01Week 1
Understand
We talk through the idea, who it’s for and what success looks like.
- 02Weeks 2–3
Shape
Flows, wireframes and a clickable prototype, while decisions are still cheap.
- 03Weeks 4–10
Build
Design and engineering in short cycles, with a fresh test build most weeks.
- 04Ongoing
Launch & stay
Store release, monitoring and steady improvements once real users arrive.
siddhesh.studio is deliberately small. When you work with me, you work with the person who designs your screens, writes your code, talks to the app store review teams and gets the alert when something breaks.
I care about the craft — the transition that feels right, the error message that's actually helpful — and about shipping on the date we agreed.
- Working with
- US, UK & EU teams
- Hours
- Overlap with ET & CET
- Replies
- Within one working day
- Projects at a time
- Two, at most
Hire a mobile app developer — USA
→Overlap with US Eastern mornings (ET) · Pacific calls on request
Hire a mobile app developer — UK
→Full overlap with the UK working day (GMT / BST)
Hire a mobile app developer — Europe
→Daily overlap with Central European Time (CET / CEST)
Hire a mobile app developer — Russia & CIS
→Near-full overlap with Moscow time (MSK) and CIS working hours
Have an app idea? Get a free, fixed-scope estimate.
- Reply within one business day
- No obligation
- You own the code
Kind words
“Siddhesh treated our app like it was his own. He questioned the right things, shipped exactly when he said he would — and the details are what our users mention first.”
Founder, consumer fintech startup
Every project is scoped individually. After a short call I send a fixed-scope proposal with a clear price in USD, GBP or EUR. Most first versions are planned as 6–12 week phases.
A focused first version typically takes 8–12 weeks including design. MVPs can launch in 6–10 weeks.
Yes — most clients are startups and companies in the United States, the United Kingdom and Europe, with daily overlap on their working hours.
Yes — natively in Swift and Kotlin, or from one codebase with Flutter or React Native. I’ll recommend what fits your product and budget.
You do, from the first commit. Code lives in your repositories, apps are published under your own Apple and Google accounts, and IP is assigned to your company.
Most clients continue on a monthly care plan covering updates, fixes and new features. There are no long lock-ins.