# TREMBLE Studios vs RivalByM

The clearest difference is ratings volume: TREMBLE Studios at 2.3K against RivalByM's 15. RivalByM's advantage is monetization model (free vs ad-supported) and device support (3 vs 1). On price, rating, review sentiment and update cadence 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 RivalByM. That said, the two scores are not equally well evidenced: TREMBLE Studios has 2.3K ratings behind it against 15, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

TREMBLE Studios ships an update monthly, RivalByM every 4 weeks. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | TREMBLE Studios | RivalByM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2.3K ratings)](https://appshunter.io/ios/app/tremble-studios/id1524078282/reviews) | [5.0 (15 ratings)](https://appshunter.io/ios/app/rivalbym/id6760154905/reviews) |
| Number of ratings | **2.3K** | 15 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 38 MB | 68 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Coral Tremble Gables LLC](https://appshunter.io/developer/1524078284) | [MOISES DANIEL SAKKAL EL MANN](https://appshunter.io/developer/1875335709) |

## 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


### RivalByM

[App page](https://appshunter.io/ios/app/rivalbym/id6760154905)

This fitness app encourages consistency by having users compete with friends based on their adherence to workout and recovery plans. Earn points for showing up, join challenges, and verify results through integrations or manual entry. It focuses on accountability and friendly competition to keep users motivated.

**Highlights:** Compete with friends on discipline, Track workouts and recovery days, Earn points for daily check-ins, Join named challenges (e.g., 5K, Hyrox), Connect Apple Health for verification, Group chat for strategy and discussion

**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 RivalByM free?

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

### Which has better reviews, TREMBLE Studios or RivalByM?

TREMBLE Studios and RivalByM are both rated 5.0 out of 5 on the App Store, from 2.3K and 15 ratings respectively.

### Do TREMBLE Studios or RivalByM have ads?

Neither TREMBLE Studios nor RivalByM shows ads.

### Which is updated more often, TREMBLE Studios or RivalByM?

TREMBLE Studios ships an update monthly, and RivalByM every 4 weeks. Most recently, TREMBLE Studios was updated on October 16, 2026 and RivalByM on October 1, 2026.

---

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