# Relentless S & F

> Relentless S & F (iPhone/iPad app by P & J Fitness LLC.)

- Source: https://appshunter.io/ios/app/relentless-s-and-f/id6480113895 (this page in markdown: same URL + `.md`)
- Developer: [P & J Fitness LLC](https://appshunter.io/developer/1738208897)
- Category: Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 13.5 · 14 MB
- Languages: English
- Released: 2024-10-08
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/relentless-s-and-f/id6480113895/reviews.md

## What is Relentless S & F?

Download the Relentless S & F app to easily book classes and manage your fitness experience - anytime, anywhere. Make a reservation, get added to a wait list, purchase class packages, check your profile and membership status, keep up to date with the latest products and services, and more – all from your device.

Visit https://www.relentlessstrengthandfitness.com to learn more.


## Version history (last 1 release)

### 8.4.5 — 2025-04-08

Quicker bookings, frictionless login, and powerful branding - this update has it all. You can book your favorite class 33% faster than before with the new quick-booking feature. Even logging into the app is faster with support for biometric login using a fingerprint or a face scan. Do it all fully immersed in your studio’s brand. We've made some minor bug fixes and user experience improvements.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*