# TREMBLE Studios vs FIT 850

The clearest difference is ratings volume: TREMBLE Studios at 2.1K against FIT 850's 178. TREMBLE Studios also leads on monetization model (ad-supported vs free with in-app purchases). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for TREMBLE Studios against 5.0 for FIT 850. That said, the two scores are not equally well evidenced: TREMBLE Studios has 2.1K ratings behind it against 178, so its average is the more settled of the two.

TREMBLE Studios ships an update monthly, FIT 850 every 5 weeks. The most recent releases landed on September 25, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | TREMBLE Studios | FIT 850 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2.1K ratings)](https://appshunter.io/ios/app/tremble-studios/id1524078282/reviews) | [5.0 (178 ratings)](https://appshunter.io/ios/app/fit-850/id6450965633/reviews) |
| Number of ratings | **2.1K** | 178 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 38 MB | 38 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Coral Tremble Gables LLC](https://appshunter.io/developer/1524078284) | [FIT 850, LLC](https://appshunter.io/developer/1695965267) |

## 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


### FIT 850

[App page](https://appshunter.io/ios/app/fit-850/id6450965633)

This app allows users to purchase memberships and class credits, schedule fitness classes, and manage their profiles. It focuses on high-intensity, low-impact reformer-based training led by experienced trainers in a premium environment.

**Highlights:** Purchase memberships, Buy class credits, Schedule classes, Update profile, Reformer-based training, Luxury brand experience

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

**In-app purchases:** none


## Frequently asked questions

### Is TREMBLE Studios free?

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

### Is FIT 850 free?

FIT 850 is free to download, with no in-app purchases.

### Which has better reviews, TREMBLE Studios or FIT 850?

TREMBLE Studios and FIT 850 are both rated 5.0 out of 5 on the App Store, from 2.1K and 178 ratings respectively.

### Do TREMBLE Studios or FIT 850 have ads?

Neither TREMBLE Studios nor FIT 850 shows ads.

### Which is updated more often, TREMBLE Studios or FIT 850?

TREMBLE Studios ships an update monthly, and FIT 850 every 5 weeks. Most recently, TREMBLE Studios was updated on September 25, 2026 and FIT 850 on September 23, 2026.

---

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