The verdict in three sentences
A chain of 5 gyms and 6,000 members in Miami losing 9% of its members a month sees around 540 customers walk out every month, the equivalent of a whole location every quarter. Off-the-shelf club software at 300-800 USD per location per month is enough to start, but it handles multi-site access control, local payment processing and automated follow-up of inactive members poorly. A custom app at 60,000-150,000 USD, delivered in 4 to 5 months, becomes profitable as soon as churn drops by 2 points.
Why churn costs more than the software
In fitness, a member who has not checked in for 14 days has a high probability of cancelling within 60 days. Without attendance data linked to memberships, the chain discovers the departure when the payment fails. The cost of acquiring a new member in Miami (ads, sales commissions, free month) runs at around 80 to 150 USD in 2026.
| Indicator (2026 order of magnitude) | Chain without an integrated tool | Chain with an integrated tool |
|---|---|---|
| Monthly churn rate | 9% | 6 to 7% |
| Members lost per month (base 6,000) | 540 | 360 to 420 |
| Time to detect an inactive member | At failed payment | 10 to 14 days |
| Group class fill rate | 55 to 65% | 75 to 85% |
| Failed recurring payments | 6 to 10% | 3 to 5% |
| Front desk time spent on sign-ups | 25 h/week across the chain | 8 to 10 h/week |
Off-the-shelf software or custom app: 2026 comparison
The figures below are 2026 market estimates in USD. They are not a Kolonell price list.
| Criterion | Off-the-shelf club software | Custom app |
|---|---|---|
| Entry cost | 1,000 to 4,000 USD setup | 60,000 to 150,000 USD |
| Subscription | 300 to 800 USD per location per month | No licence |
| Annual cost for 5 locations | 18,000 to 48,000 USD | 9,000 to 20,000 USD maintenance and hosting |
| Access control (key fob, QR code, turnstile) | Vendor hardware or partner | Compatible with your existing turnstiles |
| Class booking mobile app | Generic app under the vendor's brand | App under your brand, iOS and Android |
| Recurring billing and dunning | Standard, limited rules | Built in from the design stage |
| Automated win-back (SMS, WhatsApp, email) | Paid add-on or missing | Custom scenarios |
| Time to go live | 3 to 6 weeks | 4 to 5 months |
Over 5 years, off-the-shelf software costs 90,000 to 240,000 USD for 5 locations, against 105,000 to 250,000 USD for custom, maintenance included. The gap is less about cost than about the ability to act on churn.
Minimum scope for a gym chain app
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| Module | Role | Phase |
|---|---|---|
| Single multi-site member record | One member, one history, all locations | Phase 1 |
| QR code or key fob access control | Attendance measured at every check-in | Phase 1 |
| Class booking and waitlist | Slots filled, no-shows measured | Phase 1 |
| Recurring billing and dunning | Under 5% failed payments | Phase 1 |
| Cancellation risk score | Alert to the coach after 10 days of absence | Phase 2 |
| Dashboard per location | Churn, fill rate, revenue | Phase 2 |
Mini case study
Marcus, founder of a 5-gym chain in Miami, has 6,000 members paying 60 USD a month on average. With 9% churn, he must sign 540 members a month just to stay flat. Assumption: the app and win-back campaigns bring churn down to 7%, i.e. 120 more members retained each month. Over 12 months, allowing for later departures, the base gains around 1,000 members, i.e. a revenue gain of around 360,000 USD in the first year (500 extra members on average x 60 USD x 12). Against a 100,000 USD project, the investment pays back in 3 to 4 months. This scenario is illustrative.
FAQ
How much does gym management software cost in the US in 2026? Expect 300 to 800 USD per location per month for off-the-shelf software. A custom app for a chain ranges from 60,000 to 150,000 USD depending on modules.
How long does it take to build a gym chain app? A complete project takes 4 to 5 months, including 6 weeks of design. A first version with access and booking can launch in 10 to 12 weeks.
Can we keep our turnstiles and key fob readers? In most cases yes, if the hardware supports API or network controller integration. Budget 10 to 15% of the project for this integration.
How do we measure the gain on churn? Compare the monthly rate over 3 months before and after launch, location by location. A 2-point drop on 6,000 members means 120 members retained per month.
Is member data protected? The app must follow Florida privacy rules and PCI DSS for card payments. Any health data must be encrypted and access limited to authorised coaches.
Let's scope your project. Tell us your number of locations, members and access hardware: we will price the scope, an indicative budget and a rollout schedule per location. Detailed quote within 48 h. WhatsApp +221 77 596 93 33. Request a free quote.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
