CastleFit
Castle Flexx Health & Fitness iPhoneiPadiPod touch
CastleFit is a free Health & Fitness app for iPhone and iPad by Castle Flexx. Rated 4.0/5 from 2 ratings. Requires iOS 15.1. Updated October 22, 2026.
- Rating
- 4.0
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 45 MB
- Age 4+
- Updated
- Oct 22
- 2026 · v1.3
Screenshots
About CastleFit
Relieve pain. Improve flexibility. Recover faster. Castle Fit brings the full CastleFlexx experience to your phone — guided stretch and mobility sessions built around the device that helps treat the root causes of lower back pain, plantar fasciitis, tight calves, hamstring tightness, and limited mobility. Whether you are recovering from an injury, loosening up before training, or building a daily movement habit, Castle Fit gives you a clear, follow-along routine you can do at home. WHAT YOU GET ◆ Dozens of instructional HD videos and relaxing flows ◆ Sessions organized by your age, ability, and goals ◆ Guided programs from leading trainers and therapists ◆ Active and passive stretching routines for full-body mobility ◆ Targeted relief for calves, hamstrings, hips, lower back, and feet SHOP THE FULL RANGE ▸ Browse the complete CastleFlexx device lineup and accessories ▸ Save your favorites to a wishlist ▸ Fast, secure checkout ▸ Track your orders from purchase to delivery ▸ Get updates on new arrivals and restocks TRUSTED BY EXPERTS AND ATHLETES CastleFlexx is recommended by clinicians and chiropractors and used by professional athletes as part of their recovery. The device pairs stretching with core strengthening for a balanced, controlled experience. BUILT FOR YOUR ROUTINE Follow along at your own pace, choose sessions that match how your body feels today, and come back to the flows that work best for you. Everything is designed to keep you moving, mobile, and pain-free. Download Castle Fit and start moving better today.
What’s new
Version 1.3 · Updated October 22, 2026
Enhanced features
App privacy
The developer, Castle Flexx, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Contact Info: Email Address
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Financial Info: Payment Info
- Contact Info: Physical Address, Email Address, Name, Phone Number
- Search History: Search History
- Identifiers: User ID, Device ID
- Usage Data: Product Interaction
- Diagnostics: Crash Data, Performance Data
Used for: Analytics, App Functionality
Alternatives to CastleFit
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| CastleFit | 4.0 / 5 (2 ratings) | Free | October 22, 2026 | |
| Aletha: Muscle Release Routine | 4.1 / 5 (17) | Free | Oct 5, 2026 | Compare |
| Heroboard Fitness | 3.8 / 5 (5) | Free | Aug 31, 2026 | Compare |
| Thrival Muscle Recovery | 4.9 / 5 (11) | Free | Sep 18, 2026 | Compare |
| Pure Rituals | 3.5 / 5 (2) | Free | May 19, 2026 | Compare |
| Sidekick Relief & Recovery | 2.3 / 5 (28) | Free | Oct 22, 2026 | Compare |
| Pure Plank | 2.0 / 5 (46) | Free | Feb 7, 2026 | Compare |
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