# Plunge vs RheoFit

The clearest difference is ratings volume: Plunge at 1.8K against RheoFit's 2. RheoFit's advantage is rating (5.0 vs 4.7) and update cadence (weekly vs every 3 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

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

RheoFit holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Plunge has 1.8K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 41% of Plunge's written reviews are positive against 50% of RheoFit's.

Plunge ships an update every 3 weeks, RheoFit weekly. The most recent releases landed on October 22, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Plunge | RheoFit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1.8K ratings)](https://appshunter.io/ios/app/plunge-official-app/id6450953005/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rheofit/id6497569508/reviews)** |
| Number of ratings | **1.8K** | 2 |
| Positive reviews | 40.6% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | Free |
| Size | 126 MB | 187 MB |
| Requires iOS | 17.6 | **13** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Reboot Labs](https://appshunter.io/developer/1660736219) | [Yunwang Innovation Intelligence (shenzhen) Co., Ltd.](https://appshunter.io/developer/1725094284) |

## What reviewers say

### Plunge

[App page](https://appshunter.io/ios/app/plunge-official-app/id6450953005)

This app helps you track and control your cold plunge and sauna sessions for a transformative wellness journey. Monitor your progress with insightful statistics, customize your sauna experience, and receive expert tips for maintaining your equipment. Embrace a holistic well-being routine.

**Highlights:** Intuitive session tracking, Engaging timer, Insightful statistics, Sauna temperature control, Session scheduling, Expert care tips for plunge products

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Great app, direct support
- 👍 Good UI, basic features
- 👍 Challenges are nice
- 👍 One app for cold plunge + sauna
- 👍 Maintenance reminders

**What reviewers complain about**

- 🔒 No family/multiple user support
- 🔒 Can't unlink Apple account
- ⏱️ No scheduling feature for chiller
- 🔍 No community, private groups
- 🔍 No leaderboards

**Reported bugs**

- Frequent crashes and logging out issues
- Data erased, can't manually add sessions
- Inaccurate temperature readings
- Frequent disconnections with sauna

**Requested features**

- Ability to add family members
- Scheduling feature for chiller
- Community and private groups
- Leaderboards
- Automated temperature tracking


### RheoFit

[App page](https://appshunter.io/ios/app/rheofit/id6497569508)

This app serves as a personal rehabilitation therapist, offering customized massage experiences for muscle recovery. It provides various modes, smart solutions for different needs, and allows users to monitor device battery status.

**Highlights:** Multiple speed and focus modes, Customizable massage intervals and duration, 43 rehabilitation solutions for various needs, Battery status monitoring, User guide and function explanations

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

**In-app purchases:** none


## Frequently asked questions

### Is Plunge free?

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

### Is RheoFit free?

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

### Which has better reviews, Plunge or RheoFit?

RheoFit is rated higher. Plunge averages 4.7 out of 5 from 1.8K ratings, while RheoFit averages 5.0 from 2 ratings.

### Do Plunge or RheoFit have ads?

Neither Plunge nor RheoFit shows ads.

### Which is updated more often, Plunge or RheoFit?

Plunge ships an update every 3 weeks, and RheoFit weekly. Most recently, Plunge was updated on October 22, 2026 and RheoFit on October 14, 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.*