A costed breakdown
The total split across ten engineering disciplines, in hours and dollars, so you can see which part of the build is the expensive one.
Free calculator · United States · USD · Updated for 2026
Sixteen questions about your features, users, traffic and platform. You get a costed US estimate with hours, timeline and team.
Both routes end at the same calculator. One just fills in more of it for you.
Not a single figure. Four costed views of the same build, each one itemised, and every input still editable afterwards.
The total split across ten engineering disciplines, in hours and dollars, so you can see which part of the build is the expensive one.
Engineering hours converted into an elapsed schedule, with the phases overlapped the way they actually run rather than queued end to end.
The roles those hours require and how much of the run each is on for — the difference between a four-person build and a nine-person one.
Infrastructure, maintenance and support after launch. The line most quotes leave off, and the one that outgrows the build cost first.
Each of these opens the calculator preloaded with that product’s shape, so you get a costed breakdown before you change a single answer.
Not a lookup table. The calculator accumulates engineering hours into ten disciplines, adjusts the ones your scale genuinely affects, then costs the total at a US blended rate.
Discovery, requirements, user stories, technical scoping.
Screens, design system, prototypes, usability and accessibility work.
The app itself — iOS, Android or a shared cross-platform codebase.
APIs, business logic, data model, admin and background processing.
Scaling, caching, queues, storage, media pipelines, observability.
Building and hardening each external service connection.
Controls, hardening, audit logging, review and testing.
Functional, regression, device-matrix, performance and release testing.
CI/CD, environments, infrastructure as code, monitoring, store releases.
Planning, coordination, reporting and the cost of keeping it on track.
Not a percentage. A cache in front of the hot reads, a queue for anything slower than a request, read replicas, a load test in the release pipeline. Each tier below is the engineering that scale forces — and the calculator prices those hours rather than adding a surcharge to the total.
A single well-built backend serves everything.
Caching, queues and real monitoring become mandatory.
The system is distributed, and it has to be designed that way.
Availability targets drive the architecture, not the feature list.
Every category loads the features apps of that kind almost always need, so you are editing a sensible list rather than filling in a blank one.
For a US-based team, between about $45,000 for a genuinely small single-platform MVP and $2M+ for a high-scale consumer product with two native apps, real-time infrastructure and a recommendation system. Most funded first releases land between $150,000 and $600,000. The range is wide because "an app" describes a phone icon, not a scope — which is why this site asks sixteen questions instead of one.
Because this one prices US teams only, and it prices a production build rather than a prototype. Most sub-$100,000 figures online assume an offshore team at $25–$50 per hour, a feature list a third the length, and no budget line for QA, DevOps, security or project management. Those four disciplines are roughly a third of a real build. We show them as separate rows so you can see exactly what you are being quoted for elsewhere.
Product planning, UI/UX design, mobile development, backend development, infrastructure engineering, third-party integrations, security and compliance work, QA, DevOps and project management. Excluded, and stated on every result: cloud hosting, third-party service fees, app store fees, content production, marketing, legal counsel and audit or certification fees. Cloud and vendor costs are estimated separately as a monthly figure.
Not as a percentage. Scale changes what gets built. Below roughly 25,000 monthly active users, one well-built service and a managed database carry the product. Past that you need a caching layer, a job queue, read replicas and real monitoring. Past a few hundred thousand you need horizontal scaling, a CDN, partitioned data and load testing against production-shaped data. Each of those is engineering hours, and the results page lists exactly which ones your answers triggered and why.
Yes, and it is usually the right call. A single native iOS app is the cheapest route to a real product. Two native codebases cost about 60% more on the client side — though not on the backend, which is the same either way. React Native or Flutter sits in between at around 25% over a single native app and covers both stores, with native work still needed wherever you touch the camera, background location or payment SDKs.
Two ongoing costs, and they are separate. Cloud infrastructure runs from about $200 per month for a small app to five figures monthly for a media-heavy product at scale — the calculator estimates yours from your traffic, storage and media answers. Maintenance is 15–25% of build cost per year for bug fixes, OS and SDK updates, security patching and small improvements. Budgeting for the build and not for these two is the most common planning mistake we see.
A small single-platform MVP is 2–4 months. A funded consumer product with a custom backend is typically 6–10 months. A two-sided marketplace with two apps, real-time dispatch and payments is 9–14 months. Compressing a schedule by adding people works up to a point and then stops working — the calculator models that, which is why doubling the team does not halve the timeline.
They are accurate as templates and make no claim to be anything else. Each profile describes the shape of that kind of product — the features, the architecture and the scale a US team would plan for in year one. Nobody outside those companies knows their real systems, real infrastructure or real development cost, and this calculator does not pretend to. Every value a template loads is editable in the wizard.
Freelancers at $40–$100 per hour work when you have a technical founder driving the architecture and accepting the coordination load. A small team at $60–$120 is the common choice from funded MVP through Series A. An agency at $100–$180 buys predictability and the disciplines that are invisible until they are missing. Enterprise delivery at $150–$250+ is justified by regulation, multi-region requirements or systems you do not control. The calculator prices all four.
No. The calculation runs entirely in your browser and nothing is transmitted while you work through it. The only data that ever leaves your device is what you deliberately type into the form at the end, after your estimate has already been shown to you in full. See the privacy policy.
Both charts are live output from the calculator on this page, generated at build time — not illustrations drawn to look about right.
A typical e-commerce build, split across the disciplines the estimate accumulates. The app itself is the small part — it is the backend and the infrastructure behind it that carry the bill.
The same calculator run over 7 reference builds, cheapest to dearest. The spread between the ends is about 5× — which is why a single average figure for “a mobile app” is useless.
| App | Estimated build cost |
|---|---|
| Strava | $355K |
| Trello | $575K |
| Notion | $677K |
| Spotify | $775K |
| DoorDash | $994K |
| PayPal | $1.5M |
| TikTok | $1.7M |
Send us your calculator output and an engineer will go through it, tell you which assumptions we would challenge, and come back with a scoped breakdown — not a sales deck.