# Ultra Plunge: Recovery Tracker — Cold, Heat, Sauna & Breathwork

> Apple Watch app for tracking cold plunge, sauna, and recovery sessions with real-time metrics and AI insights. (iPhone/iPad app by R.P.A. Tech.)

- Source: https://appshunter.io/ios/app/ultra-plunge-recovery-tracker/id6499478156 (this page in markdown: same URL + `.md`)
- Developer: [R.P.A. Tech](https://appshunter.io/developer/289616512)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Rating: 4.10/5 from 46 App Store ratings · 30 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 54 MB
- Languages: American English
- Released: 2024-09-17
- Data updated: 2026-08-27
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/ultra-plunge-recovery-tracker/id6499478156/reviews.md

## What is Ultra Plunge?

Track cold plunges, saunas, ice baths, steam rooms, and recovery sessions directly from your Apple Watch or iPhone.
Build consistency, monitor your response, and understand your progress with live metrics, guided breathing, goals, streaks, and long-term insights.

Real-Time Metrics on Your Apple Watch
• Track realtime cold-plunge water temperature with Apple Watch Ultra or Series 10
• Sauna & steam room air temperature + humidity with optional Bluetooth sensor
• Monitor active and resting heart rate
• View real-time heart-rate charts and strain
• Track session duration with the built-in timer and stopwatch
• Apple Watch widgets for live session time & progress
• Share sessions to Strava or social media

See Progress Over Time
Use the dashboard to understand your routine with:
• AI-powered coach provides insight on progress and consistency over time
• Charts and heat maps
• Personal goals and streaks
• Calories and heart-rate trends
• Session history across cold, heat, and recovery
• Estimated sweat loss and heat load for Sauna sessions
• Recovery tips and wellness insights

Track Your Recovery Routine
Log sessions including:
• Cold Plunge, Ice Bath, Polar Plunge, Cold Shower
• Sauna, Steam Room, Hot Plunge
• Cryotherapy, Float Tank, Red Light Therapy, Hyperbaric Chamber, Breathwork

Breathwork  
• Add guided breathing to any cold, heat, or recovery activity, choosing from a library of breathing patterns
• Start a dedicated breathwork session for a more immersive experience with advanced guided animations

Free Trial & Subscription
Enjoy a 7-day free trial with full, ad-free access. After the trial, a subscription is required. Subscriptions renew automatically unless canceled at least 24 hours before the end of the billing period. You can manage or cancel your subscription anytime in your Apple Account settings. 

Why Ultra Plunge?
Ultra Plunge isn’t just a tracker — it’s your personal wellness training partner. Whether your goal is resilience, circulation, mental toughness, or simply building a habit, Ultra Plunge helps you stay consistent and see real progress over time. Turn everyday routines into a powerful wellness practice. Life’s too short for lukewarm experiences.
Download Ultra Plunge today and begin transforming yourself from everyday human to wellness warrior. Because life’s too short for lukewarm experiences!

FAQ
Q: Do I need an Apple Watch?
A: Yes. Ultra Plunge is built for Apple Watch.

Q: Can Ultra Plunge measure water temperature?
A: Yes, with an Apple Watch Ultra or 10.

Q: How does Ultra Plunge measure sauna temperature and humidity?
A: With an optional Bluetooth temperature sensor, available at: https://ultraplunge.app

Q: Can I use Ultra Plunge with Strava?
A: Yes, you can automatically share sessions to Strava.

Q: Is my data secure?
A: All your data is stored in your iCloud account, not on our servers. The AI Coach uses a local model, none of your personal data is shared with an online AI service.

Q: Can I track multiple types of sessions?
A: Yes. Cold, heat, and recovery sessions are all supported.

Q: Does Ultra Plunge track heart rate and calories?
A: Yes.

Q: Does Ultra Plunge estimate sweat loss?
A: Yes.

Q: Is guided breathing included?  
A: Yes. Add adjustable breathing guidance to any activity on Apple Watch or iPhone, or start a dedicated breathwork session with advanced guided animations.

Q: Is there a free trial?
A: Yes, a free trial is included.

Q: Can I cancel my subscription anytime?
A: Yes, in your Apple Account settings.

Safety Disclaimer:
Always consult a healthcare professional before starting new wellness activities involving extreme temperatures. Avoid using your watch outside of Apple’s recommended operating temperature range. AI Coaching provides general wellness insights and motivational support — not medical advice. AI features use Apple Foundation Models and operate on your device.

Privacy Policy: https://ultraplunge.app/privacy
Terms of Service: https://ultraplunge.app/terms

## Key features

- Real-time temperature and humidity tracking
- Heart rate monitoring and strain indicator
- AI-powered progress insights
- Guided breathing exercises
- Session tracking for various recovery types
- Strava and social media sharing
- Apple Watch widgets

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $39.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Access | $59.99 | one-time |


## Recent user reviews (10 of 30)

All indexed reviews: https://appshunter.io/ios/app/ultra-plunge-recovery-tracker/id6499478156/reviews.md

### 4/5 — Some suggestions

*2026-05-12*

Great app. My suggestions:
- don’t show the paywall directly, even with the free trial many will not try
- it didn’t activate water mode in Watch Ultra when I select plunge (for reference, was untimed)
- if can sense water, after 5 seconds out of water suggest pause
- let use chose 3, 5 or 10 seconds countdown
- let use put goal (like 10 min) and mark time counting up and allow passing the allotted time
- when user defines temperature, it is not showing during the plunge

Great app, anyway. Some improvements only.

**Developer response:** Thanks for your feedback, we will consider these for future updates.

### 2/5 — Works good for a few days

*2026-05-11, version 2.0.4*

Works good for the first few days - then very inconsistent. I have ultra 3 for reference. It seems like every other day the app believes I’m getting into a 44° sauna and then the other half the time the app just continually loads for a minute at a time.  Not auto ending the cold plunge session when you leave the plunge also is very frustrating. It seems like it’s better just to use the free dive app that comes with the watch.

### 4/5 — Decent but not Perfect-Updated

*2026-04-29, version 2.0.4*

What works well: The app loads and connects with Apple Watch fine. It records the session and uploads to Strava. It logs your sessions.
What doesn’t work well or at all:
It doesn’t seem to know my location even though it has location permission. It logs the session at the correct time but uploads it to Strava with a time 10 hours later. There is no online support, just a static website.
Update to my initial review (one month later): the developer has responded to every issue I had and the app is functioning much more consistently now.

### 3/5 — Decent but not Perfect

*2026-04-01*

What works well: The app loads and connects with Apple Watch fine. It records the session and uploads to Strava. It logs your sessions.
What doesn’t work well or at all:
It doesn’t seem to know my location even though it has location permission. It logs the session at the correct time but uploads it to Strava with a time 10 hours later. There is no online support, just a static website.

### 5/5 — Best cold plunge app

*2026-03-26, version 2.0.2*

After cold plunging for over 5 years and trying every app out there I find this is best. All the information is simple and straightforward while in the water. Also, I found the water temp is very accurate. The AI is very interesting. As someone who started 5 years ago this is a savior. No more having to log in to my calendar app after taking pictures of my info outside. I highly recommend this app. Everyone that I have recommended it to feels the same way.

### 5/5 — Great app, great support

*2026-03-04, version 2.0.0*

When I first started using the app it was ok, it worked and did what I needed. But I had some issues. I reached out to support and to my surprise, all of my issues were already on track to be resolved in the next release and lo and behold they were!  The latest release is exactly what I envisioned the Apple Watch app should be like. It works flawlessly and their support was kind enough to not only let me know the release was coming but also to let me know when it was available.

### 5/5 — Best cold plunge/sauna app by far!

*2026-02-23, version 1.0.24*

Since starting my cold plunge journey I’ve been looking for an app that will track water temperature, time, and heart rate on my watch and this app does it all and a lot more. Also works great in my sauna. I have now been using this app for over a year, just renewed my subscription, and it has been excellent. More importantly, the developer is VERY responsive. I get a response same day and many of my suggestions have been added in updates

### 5/5 — Great app!!

*2026-02-14, version 1.0.24*

This app makes tracking my cold plunges effortless. I love seeing the water temperature and guided breathing right on my watch and being notified when my time is up

### 5/5 — Best cold plunge/sauna app by far

*2026-02-01, version 1.0.24*

Since starting my cold plunge journey I’ve been looking for an app that will track water temperature, time, and heart rate on my watch and this app does it all and a lot more. Also works great in my sauna. I have now been using this app for over a year, just renewed my subscription, and it has been excellent. More importantly, the developer is VERY responsive. I get a response same day and many of my suggestions have been added in updates

### 2/5 — App crashes

*2026-01-17, version 1.0.24*

Great app and design , but it crashes often

## Frequently asked questions about Ultra Plunge

### What devices is Ultra Cold Plunge & Sauna compatible with?

This app is built for Apple Watch. To measure water temperature, you will need an Apple Watch Ultra or Series 10. For sauna temperature and humidity, an optional Bluetooth sensor is required.

### How does the app track sauna temperature and humidity?

Sauna temperature and humidity can be tracked using an optional Bluetooth temperature sensor. This sensor can be purchased separately to integrate with the app for more accurate readings during your sauna sessions.

### Can I share my session data with other platforms?

Yes, you can automatically share your completed sessions to Strava or other social media platforms. This allows you to keep a consolidated record of your fitness activities and share your progress with your community.

### What types of recovery sessions can I track?

The app supports tracking a wide variety of sessions, including cold plunge, ice bath, polar plunge, cold shower, sauna, steam room, hot plunge, cryotherapy, float tank, red light therapy, and hyperbaric chamber sessions.

### What is the pricing model for Ultra Cold Plunge & Sauna?

The app offers a 7-day free trial with full, ad-free access. After the trial period, a subscription is required to continue using the app. Subscriptions renew automatically unless canceled at least 24 hours before the end of the billing period.

## Version history (last 5 releases)

### 2.0.8 — 2026-08-11

UltraPlunge continues to evolve into a complete wellness and recovery tracker. Introducing Breathwork in UltraPlunge!

• You’ve long been able to add guided breathing to your sessions. Now, we’ve taken it further with a dedicated Breathwork activity featuring a library of breathing techniques and beautiful visualizers that guide each breath. Start a session on your iPhone, Apple Watch, or both together.
• Added the ability to add more time when a countdown session ends.
• Now you can see exactly how long your session has been paused.

### 2.0.7 — 2026-07-27

Now you can create your own activities and customize which ones show in the main menu
• Create your own activity under Settings->Custom Activities
• Customize the activity menu under Settings->Customize Activity Menu

### 2.0.6 — 2026-07-20

Now you can create your own activities and customize which ones show in the main menu
• Create your own activity under Settings->Custom Activities
• Customize the activity menu under Settings->Customize Activity Menu

### 2.0.5 — 2026-06-16

• Added the ability to run sessions on your iPhone without an Apple Watch required, or mirror your Apple Watch and iPhone sessions to run at the same time
• Added session heat map to dashboard to visualize your monthly cold and heat exposure
• Added weekly and monthly reviews and notifications
• Fixed guided breathing haptics to continue to fire in the background

### 2.0.4 — 2026-04-29

- Added ability to change order of the Dashboard items in the iOS app under Settings->Dashboard
- Bug fixes

## Apps similar to Ultra Plunge

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Cold Plunge & Sauna: Polar Log](https://appshunter.io/ios/app/cold-plunge-and-sauna-polar-log/id6474701834) | 4.7 (12) | Free | Health & Fitness |
| [Cold Plunge Tracker by ICY](https://appshunter.io/ios/app/cold-plunge-tracker-by-icy/id6740389394) | 4.5 (4) | Free | Health & Fitness |
| [Cold Water Therapy](https://appshunter.io/ios/app/cold-water-therapy/id1562132065) | 2.8 (43) | Free | Health & Fitness |
| [CryoZest - Self Experiment](https://appshunter.io/ios/app/cryozest-self-experiment/id6449912558) | 4.3 (20) | Free | Health & Fitness |
| [GoPolar: Cold Plunge & Sauna](https://appshunter.io/ios/app/gopolar-cold-plunge-and-sauna/id6463441179) | 4.7 (292) | Free | Health & Fitness |
| [Chill - Cold Plunge Timer](https://appshunter.io/ios/app/chill-cold-plunge-timer/id6449394827) | 5.0 (2) | Free | Health & Fitness |

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*