# TREMBLE Studios vs Diesel Optimization

The clearest difference is update cadence: TREMBLE Studios at monthly against Diesel Optimization's every 2 months. 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, Diesel Optimization every 2 months. The most recent releases landed on October 19, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | TREMBLE Studios | Diesel Optimization |
| --- | --- | --- |
| 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 2 months |
| Monetization | Ad-supported | — |
| Size | 38 MB | 40 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Coral Tremble Gables LLC](https://appshunter.io/developer/1524078284) | [DIESEL FITNESS, INC.](https://appshunter.io/developer/1886793917) |

## 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


### Diesel Optimization

[App page](https://appshunter.io/ios/app/diesel-optimization/id6760916740)

**Features:** macOS Compatibility, 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 Diesel Optimization free?

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

### Do TREMBLE Studios or Diesel Optimization have ads?

Neither TREMBLE Studios nor Diesel Optimization shows ads.

### Which is updated more often, TREMBLE Studios or Diesel Optimization?

TREMBLE Studios ships an update monthly, and Diesel Optimization every 2 months. Most recently, TREMBLE Studios was updated on October 19, 2026 and Diesel Optimization on October 1, 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.*