Ultra Cold Plunge & Sauna

Name: Ultra Cold Plunge & Sauna
Rating: 4.1 (43 reviews)
Author: R.P.A. Tech

By: R.P.A. Tech

Log Cold Plunge Sauna Sessions

Features & Capabilities

The top app for tracking heat and cold exposure activities. With live cold plunge water temperature display and a personal AI Coach

Ultra Plunge is the ultimate Apple Watch and iPhone app for cold plunges, saunas, steam rooms, ice baths, and more. Build consistency, track real progress, and get more out of every recovery session — right from your Apple Watch.

Real-Time Metrics on Your Wrist • Live cold plunge water temperature (Apple Watch Ultra & Series 10) • Sauna & steam room air temperature + humidity (optional Bluetooth sensor) • Hyperbaric chamber pressure (up to 2 ATM) • Active & resting heart rate • Real time Heart Rate chart and Strain indicator • Built-in timer & stopwatch

Smarter Sessions with AI-Powered Insights • Dashboard with charts, showing trends and progress • AI-powered coach provides insight on progress and consistency over time • Guided breathing with customizable breathing patterns on your watch • Personal goals, streaks, calories, and progress tracking • Estimated sweat loss and heat load for Sauna sessions • Helpful tips and recovery insights to support your routine

Widgets, Sharing & Integrations • Apple Watch widgets for live session time & progress • Share sessions to Strava or social media • Track long-term progress across cold, heat, and recovery sessions

Track Every Session • Cold Plunge, Ice Bath, Polar Plunge, Cold Shower • Sauna, Steam Room, Hot Plunge • Cryotherapy, Float Tank, Red Light Therapy, Hyperbaric Chamber

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 there guided breathing included? A: Yes, with adjustable breathing patterns on Apple Watch.

Q: Is there a free trial? A: Yes, a 7-day 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 entirely on your device.

User Growth & Download Statistics

App

By:

R.P.A. Tech

Rating:

4.10

(43)

Version:

2.0.4 Last updated: 2026-04-29

Version code:

884998304

Creation date:

2024-09-17

Compatible devices:

Size:

45.10MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-05

Compare stats and ranking:

Ranking

# 215,827 ▼ 334

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

R.P.A. Tech

Apple Apps Store

https://apps.apple.com/us/app/ultra-cold-plunge-sauna/id6499478156

Website:

https://ultraplunge.app

User Reviews

Overall, users like Apple Watch integration, temperature tracking, and the app’s ease of use and responsive updates. Recurrent concerns involve unreliable heart-rate capture, occasional timer glitches, stability issues, offline-start limitations, and occasional Strava data-sync quirks.

Pros

Strong Apple Watch integration and reliable session logging (including Strava uploads).
Accurate water temperature readings.
Intuitive, easy-to-use interface with timers, guided breathing, and notifications.
Comprehensive tracking for cold plunge and sauna (time, temperature, heart rate).
Highly responsive developer and frequent updates.

Cons

Heart rate tracking is unreliable or not syncing with the watch.
Timer behavior can be unreliable or inconsistent (disappears, continues after time, variable vibrate).
App can crash or feel unstable at times.
Offline usage limitations (can't start activities or load products without internet).
Occasional data sync issues (e.g., Strava timing discrepancies).

Recent reviews

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.

by Si*****, 2026-05-11

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.

by QC*****, 2026-04-29

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.