Apps your customers keep, built in weeks.
Web apps in 21 days. iOS and Android apps from one React Native codebase in four to six weeks, published to both stores. Senior engineers, a fixed price, and the code in your accounts.
- Web app
- $6k – $12k, 21 days
- iOS and Android
- $12k – $30k, 4–6 weeks
- Approach
- One codebase, both stores
- You own
- Code and store accounts
Who it’s built for.
- Startups whose customers live on their phones
- Businesses replacing a dated app or a spreadsheet-and-WhatsApp process
- Founders who validated on the web and now need mobile
- Agencies that sell apps but don’t build them in house (see white-label development)
What’s included
In scope
- Product flows and screens designed for mobile first
- iOS and Android from one React Native codebase, or a responsive web app
- Accounts, push notifications and offline basics
- Payments and in-app purchases where needed
- App Store and Play Store submission
- Analytics and crash reporting
Available as add-ons
- Separate fully native codebases for each platform
- Apple Watch, TV and car apps
- Ongoing store optimisation and paid acquisition
How it runs, week by week.
Flows and screens
The core journeys designed and clickable before code.
Build
Accounts, data and the core features on a test build on your phone.
Polish and test
Real-device testing, notifications, payments, edge cases.
Store release
Submitted to both stores, with listing copy and screenshots.
App development cost
Prices in US dollars.
| Factor | Effect on price |
|---|---|
| Number of screens and user types | The biggest driver of cost |
| Offline use and sync | Adds $2,000 – $5,000 |
| In-app purchases or subscriptions | Adds $1,000 – $3,000 |
| Existing designs | Lowers the price |
Paid in milestones: 50% to start, 40% when you can use it on staging, 10% at launch (40/40/20 on larger projects). Prices are set for each market, not converted at the day’s exchange rate.
Your options, side by side.
| AI app builder | Freelancer | Large agency | v1build | |
|---|---|---|---|---|
| Time to a production app | Hours to a prototype. Production is up to you. | 4–12 weeks, depending on availability | 3–6 months | 21 days, fixed |
| Typical cost | A subscription plus your time | $5k–$15k, often hourly | $60k–$150k | Fixed, in writing, before work starts |
| Security, tests and monitoring | Usually the first thing to break | Depends on the person | Yes, at agency prices | On every release |
| Who owns the code | You, inside their platform | You, if the contract says so | You, after final payment | You. It lives in your accounts from day one. |
| After launch | Credits and prompts | If they are still available | A support contract | Two weeks of fixes, then a retainer if you want one |
Questions, answered.
Should I build a mobile app or a web app first?
If your users need you daily and on the move, mobile. If they find you from search or use you at work, start with web: it is faster and cheaper to change, and we can add mobile from the same backend.
Why React Native?
One codebase for iOS and Android cuts cost and keeps both apps in step. For most business and consumer apps users can’t tell the difference.
Who owns the App Store accounts?
You do. We publish under your developer accounts.
Can you take over an existing app?
Yes. We start with a paid code review so you know what you are working with.
Your v1 could be live next month.
Tell us what you are building. Get a fixed scope and price in writing within 24 hours.
Prefer email? hello@v1build.com