# FitBetween vs CastleFit

The clearest difference is rating: FitBetween at 5.0 against CastleFit's 2.0. FitBetween also leads on update cadence (every 2 days vs every 2 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FitBetween holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

FitBetween ships an update every 2 days, CastleFit every 2 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | FitBetween | CastleFit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fitbetween/id6763607559/reviews)** | [2.0 (2 ratings)](https://appshunter.io/ios/app/castlefit/id6786671032/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Monetization | Free | Free |
| Size | 37 MB | 45 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Deston Evans](https://appshunter.io/developer/1895395313) | [Castle Flexx](https://appshunter.io/developer/1695941246) |

## What reviewers say

### FitBetween

[App page](https://appshunter.io/ios/app/fitbetween/id6763607559)

This app intelligently finds gaps in your calendar to generate AI-powered workouts tailored to your available time. It requires no equipment and fits movement into your existing schedule, making fitness accessible for busy individuals.

**Highlights:** AI workout generation, Calendar integration, Time-based workouts, No equipment needed, Privacy-focused, Streak tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### CastleFit

[App page](https://appshunter.io/ios/app/castlefit/id6786671032)

This app offers guided stretching and mobility sessions to relieve pain, improve flexibility, and aid recovery. It provides routines for various needs, from injury recovery to pre-training warm-ups, all accessible at home.

**Highlights:** Guided stretch and mobility sessions, Targeted relief for specific body parts, HD instructional videos, Sessions organized by age, ability, and goals, Active and passive stretching routines, Device lineup browsing and purchasing

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FitBetween free?

FitBetween is free to download, with no in-app purchases.

### Is CastleFit free?

CastleFit is free to download, with no in-app purchases.

### Which has better reviews, FitBetween or CastleFit?

FitBetween is rated higher. FitBetween averages 5.0 out of 5 from 1 ratings, while CastleFit averages 2.0 from 2 ratings.

### Do FitBetween or CastleFit have ads?

Neither FitBetween nor CastleFit shows ads.

### Which is updated more often, FitBetween or CastleFit?

FitBetween ships an update every 2 days, and CastleFit every 2 weeks. Most recently, FitBetween was updated on November 5, 2026 and CastleFit on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*