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Top Software Developer
2026 Clutch Ranking
Top App Developer
2026 BusinessofApps
How Much Does It
Cost to Build an App?
It Depends on Scope
App cost comes down to your features, your platforms and the backend behind them. We don't sell hours, we sell outcomes. Managed development starts from $75 per hour, and dedicated engineers run $50 to $150 per hour. A free build plan gives you one fixed price before any code is written.
"If you're looking for a team that can support you, help scale your product, and be a true technical partner, slashdev.io is the way to go. Features that took months to finish are getting done in days. They have completely changed my business!"
Outcome-Based Pricing
We don't sell hours — we sell outcomes. Every engagement starts with a clear scope, defined deliverables, and upfront estimates so you know exactly what you're getting before work begins. Rates range from $50 to $150/hr depending on the seniority and specialization of the engineers on your project. You get full accountability, transparent progress, and a team that's committed to shipping results — not burning through a budget.
Scoped Upfront
Every project starts with clear deliverables, timeline estimates, and success criteria — before a single line of code is written.
Full Accountability
We own the outcome, not just the hours. Transparent progress updates, milestone reviews, and a commitment to shipping what we promised.
Flexible Engagement
Managed development with a dedicated team, or senior engineers embedded in yours. Scale up or down as your project evolves.
Managed Development
We define the outcome, assemble the right engineers, and own the delivery from kickoff to production.
- Scoped deliverables & milestones
- Dedicated project lead
- Weekly progress reviews
- Full delivery accountability
- AI-accelerated development
Dedicated AI-First Engineer
A senior engineer dedicated to your project, trained in AI-first development with Claude Code and automated workflows — embedded in your team full-time or part-time.
- AI-first development with Claude Code
- 5-10+ years shipping production software
- Dedicated to your project, not shared
- Start in days, not months
- Flexible contracts, zero termination cost
What Shapes App Development Cost
The things that move a mobile app budget most.
Features and Screens
Every screen and flow adds design, code and testing.
- Accounts and onboarding
- Core flows
- Notifications
- Payments
iOS, Android or Both
One codebase can cover both, and native work costs more.
- Flutter
- React Native
- Native iOS
- Native Android
Backend and APIs
Most of the work in many apps is what users never see.
- APIs
- Databases
- Admin panels
- Real-time features
Design
Custom interfaces and animation cost more than standard components.
- User flows
- Visual design
- Prototypes
- Motion
Device Features
Hardware access adds complexity and testing.
- Camera
- Location
- Bluetooth
- Offline mode
Launch and Upkeep
Store submission and updates are part of the real cost.
- App Store review
- Google Play release
- OS updates
- Monitoring
From App Idea to a Fixed Price
You see the number before we write a line of code.
Share What You Need
Tell us what you want to build, who it's for and any deadline.
Scope It Together
We turn it into features, integrations and a release plan.
Get a Written Plan
You get scope, team, timeline and a fixed price, at no cost.
Decide With the Number
Build with us, or take the plan elsewhere. You keep it either way.
App Cost Questions
How much does it cost to build a mobile app?
It depends on the number of features, whether you need iOS, Android or both, and how much backend work sits behind the app. Slashdev's managed development starts from $75 per hour, and dedicated engineers run $50 to $150 per hour. Our free build plan gives you a fixed price before any code is written.
Is cross-platform cheaper than native?
Often, because Flutter or React Native can share most code across iOS and Android. Native can still be the right call for heavy device or graphics work. We'll recommend one in your plan.
What costs come after launch?
App Store and Google Play fees, hosting, third-party services, updates for new OS versions and new features.
Which agency should I hire to build my app?
Look for shipped apps you can download, one team that owns design and engineering, a written plan and a fixed price. Slashdev does all of this, and the plan is free, so you can compare it against other quotes.
Can you take over an app someone else started?
Yes. We start with an audit of the code, then tell you honestly whether to fix it or rebuild.
Get a Fixed Price for Your App
Tell us what you want to build. You'll get a written plan and a fixed price, at no cost.
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