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About
FlexDropin is the drop-in fitness app for both sides: athletes book single classes with no membership, and gyms, studios and personal trainers sell them with no fixed fees. Most gyms still sell monthly memberships, but a lot of people don't train that way. You travel for work, you want to try reformer Pilates before committing, or you simply train twice a month. FlexDropin is built for that. For athletes • Find gyms and studios on a map or by search, filtered by activity: yoga, Pilates, CrossFit, Hyrox, boxing, functional training and more. • See each gym's class calendar, available spots and the real price per class before you book. • Book and pay in the app, with Apple Pay or card. • Get a confirmation email with a calendar invite, a reminder before class, a home-screen widget and a Live Activity for your next class on iPhone. • Save favorite gyms and read reviews from other athletes. For gyms, studios and personal trainers • List your facility for free: no subscription, no setup fee. • Publish single or recurring classes, use templates and assign instructors. • Set your own drop-in price; free classes are possible too. • Payments go to your own Stripe account. FlexDropin takes a 15% commission only on paid bookings, with monthly payouts. • Track bookings and revenue in a dashboard and get a notification for every new booking. One app for both: athletes and gym owners use the same account on iOS and Android, and gyms register their facility directly in the app.
Problem & solution
Problem
Gyms sell memberships, not single classes, and their empty spots go unsold.
Solution
An app where athletes book single classes and gyms sell them with no fixed fees.
Who it's for
• Athletes, travelers, remote workers, students, sports center, independent gyms, boutique studios.
Main features
- Map and search
- Class calendars
- Book and pay
- Free listing
- Single and recurring classes
Use cases
- Business traveler
- Boutique studios sells empty spots
Articles
2 storiesGym membership or pay per class? The math, with real US prices
When paying per class beats a gym membership: real drop-in and membership prices from US gyms, the break-even point and the costs people forget.
NxGn Tools·Oct 12, 2026
FlexDropin: a drop-in fitness app where athletes book single classes and gyms sell them with no fixed fees
FlexDropin is a drop-in fitness app: athletes book single classes with no membership, and gyms, studios and trainers sell them with no fixed fees.
NxGn Tools·Oct 10, 2026
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