What drives the cost
Workout logging, plans and progress charts are well-understood engineering with a lot of prior art. The cost drivers are elsewhere: wearable and health-platform integration, video content delivery, and the subscription mechanics that decide whether the product earns anything.
Because retention is the real problem in this category, budget deliberately for the parts that drive it — streaks, reminders, social accountability and a genuinely good first session — rather than adding feature count.
The three fitness app scopes
Almost every project in this category lands in one of three scopes. Find yours here, then price it in the calculator.
MVP
1 – 2 months
The smallest version worth putting in front of real users.
Standard
4 – 5 months
A complete product with a custom back end and an admin console.
Advanced
11 – 15 months
Multi-role, real-time and built for national scale.
Where the money goes
The split below is the standard scope above, by share of the build. The calculator turns these shares into itemised dollar figures once it has your answers.
- UI/UX design6%
- Frontend development14%
- Backend development30%
- Features29%
- Infrastructure & DevOps6%
- QA & testing8%
- Project management7%
Cost factors specific to this category
- Wearables and health data
- Apple Health and Google Fit are approachable. Per-device SDKs for specific watches and rings each add their own integration and test cycle.
- Video content
- Streamed classes need hosting, delivery and offline download. This is normally the largest technical line in a fitness build.
- Subscriptions
- In-app purchase, trials, tiers, promotions and restoring across devices. More fiddly than it looks, and it is your revenue path.
- Programme logic
- Static plans are cheap. Adaptive programmes that respond to logged performance are a rules engine with real design work behind them.
Recommended approach at standard scope
Cross-platform is the right default here
React Native or Flutter will carry most of this, but budget for native modules around media, maps or AI — those screens usually get written twice.
A custom backend with a documented API
Your own API keeps business logic off the device, makes an admin console possible, and means a web app or partner integration later is an addition rather than a rewrite.
Cloud architecture proportional to your users
At 10,000–50,000 users a month, managed hosting with monitoring and backups is enough. Keep the infrastructure boring and spend the budget on the product.
Apps in this category
Used only as recognisable reference points for scope and complexity — no affiliation with, or endorsement by, these companies is implied. Products at this scale reflect years of iteration and operating spend that no initial build budget reproduces.
- Strava
- Peloton
- MyFitnessPal
Frequently asked questions
How much does it cost to build a fitness app?
It depends on scope, and the honest answer is a range you have to derive from your own requirements. In the US in 2026 an MVP of a fitness app takes 1 – 2 months. A standard build with a custom back end and an admin console takes 4 – 5 months. A scaled platform built for national volume takes 11 – 15 months. The calculator prices whichever of those shapes matches your project, itemised by discipline, in US dollars — answer seven questions and the full estimate is shown on screen and emailed to you.
What does a fitness app like Strava cost to build?
A tracking app with GPS activities, a social feed, segments and subscriptions sits in the upper-middle band on this page. Note that the GPS and mapping work is the modest part — the community features and the years of route data are what make Strava hard to replicate.
Should I use Apple Health and Google Fit or my own tracking?
Use the platforms. They already have the user’s step, heart-rate and workout history, and reading from them costs a fraction of building sensor handling yourself. Write back to them too — it makes your app a good citizen on the device.
How much do fitness videos add?
Production is a separate budget from software, and often the larger one. On the engineering side, expect hosting, adaptive streaming, offline download and a content management workflow — a clear step up from a text-and-image app.
Price your own scope
These are typical scopes, not yours. The calculator prices the exact features, platforms and traffic you have in mind, and shows the itemised breakdown behind the number.