# F4F: Flexibility For Fighters — 1500+ fighters globally use it

> 1500+ fighters globally use it (iPhone/iPad app by LEAN ON DIGITAL, INC..)

- Source: https://appshunter.io/ios/app/f4f-flexibility-for-fighters/id6737508076 (this page in markdown: same URL + `.md`)
- Developer: [LEAN ON DIGITAL, INC.](https://appshunter.io/developer/1545117304)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 84 MB
- Languages: American English
- Released: 2025-01-26
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/f4f-flexibility-for-fighters/id6737508076/reviews.md

## What is F4F?

The flexibility for fighters system has been used by over 1500 fighters to achieve head high kicks, improve their grappling ability, fix their range of motion problems and remove stiffness  


The only app in the world that focuses on flexibly and mobility for fighters at the touch of a button.


Complete follow along short routines with no guess work, the flexibility for fighters app is the simplest way to fix, improve , or master flexibility fighting and marital arts.

This application is using HealthKit.

Terms of Use: https://api.leanondigital.com/terms/f3f7b

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| MONTHLY PLAN | $14.99 | per month |
| YEARLY PLAN | $67.00 | per year |



## Version history (last 1 release)

### 1.9.17 — 2025-01-26

No release notes.

## More apps by LEAN ON DIGITAL, INC.

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- [Let It Burn](https://appshunter.io/ios/app/let-it-burn/id1558644618)
- [Lean On Coach](https://appshunter.io/ios/app/lean-on-coach/id1561580354)
- [DoubleAAcademy](https://appshunter.io/ios/app/doubleaacademy/id1563714199)
- [Ian McClurg Soccer Training](https://appshunter.io/ios/app/ian-mcclurg-soccer-training/id1571045292)

All apps by LEAN ON DIGITAL, INC.: https://appshunter.io/developer/1545117304

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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.*