# TREMBLE Studios vs Crow JiuJitsu

The clearest difference is update cadence: TREMBLE Studios at monthly against Crow JiuJitsu's every 13 months. Crow JiuJitsu's advantage is iOS requirement (13.5 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

TREMBLE Studios ships an update monthly, Crow JiuJitsu every 13 months. The most recent releases landed on October 19, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | TREMBLE Studios | Crow JiuJitsu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2.3K ratings)](https://appshunter.io/ios/app/tremble-studios/id1524078282/reviews)** | — |
| Number of ratings | **2.3K** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 13 months |
| Monetization | Ad-supported | — |
| Size | 38 MB | 14 MB |
| Requires iOS | 16.0 | **13.5** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Coral Tremble Gables LLC](https://appshunter.io/developer/1524078284) | [CROW JIU JITSU LLC](https://appshunter.io/developer/1669466945) |

## What reviewers say

### TREMBLE Studios

[App page](https://appshunter.io/ios/app/tremble-studios/id1524078282)

Book reformer Pilates classes with your favorite instructors and reserve your machine spots. Manage your account, billing, and view scheduled classes all in one place. Discover South Florida's premier reformer Pilates brand.

**Highlights:** Find instructors and locations, Book reformer Pilates classes, Reserve machine spots, View scheduled classes, Manage account and billing

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

**In-app purchases:** none


### Crow JiuJitsu

[App page](https://appshunter.io/ios/app/crow-jiujitsu/id1669466943)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TREMBLE Studios free?

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

### Is Crow JiuJitsu free?

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

### Do TREMBLE Studios or Crow JiuJitsu have ads?

Neither TREMBLE Studios nor Crow JiuJitsu shows ads.

### Which is updated more often, TREMBLE Studios or Crow JiuJitsu?

TREMBLE Studios ships an update monthly, and Crow JiuJitsu every 13 months. Most recently, TREMBLE Studios was updated on October 19, 2026 and Crow JiuJitsu on October 4, 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.*