# Plunge vs Built Different Athletes

The clearest difference is in-app purchases: Plunge at none against Built Different Athletes's 2. Built Different Athletes's advantage is update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Built Different Athletes sells 2 in-app purchases, starting at $9.99 per month. Plunge asks for nothing beyond the download.

Plunge ships an update every 3 weeks, Built Different Athletes weekly. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Plunge | Built Different Athletes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.7K ratings)](https://appshunter.io/ios/app/plunge-official-app/id6450953005/reviews)** | — |
| Number of ratings | **1.7K** | — |
| Positive reviews | 40.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 126 MB | 21 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Reboot Labs](https://appshunter.io/developer/1660736219) | [Ultimate Team Posters](https://appshunter.io/developer/1577389923) |

## 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


### Built Different Athletes

[App page](https://appshunter.io/ios/app/built-different-athletes/id6811908310)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Founding Family Monthly | $9.99 | per month |
| Founding Family Annual | $89.99 | per year |


## Frequently asked questions

### Is Plunge free?

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

### Is Built Different Athletes free?

Built Different Athletes is free to download, with in-app purchases available.

### Do Plunge or Built Different Athletes have ads?

Neither Plunge nor Built Different Athletes shows ads.

### Which is updated more often, Plunge or Built Different Athletes?

Plunge ships an update every 3 weeks, and Built Different Athletes weekly. Most recently, Plunge was updated on October 20, 2026 and Built Different Athletes on October 8, 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.*