Ultra Plunge & Sauna User Reviews

Top reviews

Works good for a few days

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.
Show more

Decent but not Perfect-Updated

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.
Show more

Response from developer

Thank you for bringing this issue with Strava to our attention, it has been fixed with the latest update.

Decent but not Perfect

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.
Show more

Best cold plunge app

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.
Show more

Great app, great support

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.
Show more

Best cold plunge/sauna app by far!

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
Show more

Great app!!

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

Best cold plunge/sauna app by far

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
Show more

App crashes

Great app and design , but it crashes often

Response from developer

Hi, I can assure you that the app is not crashing. Please contact our support and we will be happy to get it working for you: info@ultraplunge.app

So-so

Has a lot of potential, but finicky and inconsistent. After using it for over a year, things I’ve observed: Sometimes the timer goes away mid-cold plunge or sauna, sometimes it remains visible. Sometimes the timer continues to run after the allocated time runs out, other times it stops on its own. Sometimes the timer vibrates to notify me, sometimes it doesn’t. There are no settings to fix these issues nor rhyme or reason. Very frustrating.
Show more

Response from developer

Thank you for your feedback. WatchOS can sometimes send apps to the background when it sees fit, such as in extreme temperatures or to conserve battery life. Unfortunately this is out of our control, that is why we created a complication and widget so you can still see your progress from the home screen and quickly get back into the app. The other behavior you are describing about timers is likely due to the type of timer you are using for that activity. Please contact our support and we will be happy to help you with these issues.

Contrast therapy tracking

I've been using the Ultraplunge app to track my contrast therapy regimen, and I couldn't be more impressed. The app is intuitive, reliable, and perfectly tailored for managing cold and heat exposure routines. It makes logging sessions effortless and provides helpful insights that keep me consistent and motivated.
What truly sets Ultraplunge apart is their customer service. Any questions I had—whether about features or best practices—were answered in near real-time. The support team was not only responsive but also followed up to ensure everything was working smoothly. That level of care and attention is rare and deeply appreciated.
Highly recommend Ultraplunge to anyone serious about contrast therapy and looking for a seamless digital companion backed by stellar support.
Show more

Response from developer

Thank you for your review. We continue to work hard to make this the best app it can be. We always appreciate your feedback.

Forced subscription

You can’t even see the app without submitting to the subscription. Terrible.

Will no longer SYNC to Watch

Loved it at first. Now it won’t measure heart rate anymore or sync to watch. My other apps are still synced. Disappointed that it stop working so quickly.

Response from developer

Please contact us and we will get it working for you: info@ultraplunge.app

Active responsive developer

The app is great at tracking the cold and hot sessions, the developer is active and in 1day they release the update to better track cryotherapy, im very happy with this app

So close!

Love the basis of the app. However, it is not recording my heart rate while in the sauna or cold plunge. Using the ultra 2 watch. All permissions have been given. But still not working. Would give five stars if I got that going!

Response from developer

We have tried many times to reach out to you to help get this working but never heard back. Please email our support and we will be happy to help you out, or please remove your review if it is not an issue any more. Thank you!

Great

The team at Ultra Plunge has been very accessible and enjoyable to work with over the time I’ve had the app.
They have added key features that for me take treatment to next level.
After 2 months of use i now can track where the benefits really are and adjust my training accordingly
This app also motivates me to keep my treatments and tools current in my training!
Good job team!
Show more

Response from developer

Glad to hear that you are enjoying the app. Your feedback is always very much appreciated!

Great for tracking

Using this daily to track Cold Plunges and Sauna usage.

Developers are super-responsive and keep adding features.

Amazing cold plunge companion

The Ultra Plunge app is a game-changer for anyone serious about cold therapy. The app is incredibly user-friendly, with customizable plunge timers, temperature tracking, and guided breathing exercises that make every session effective and enjoyable. The interface is sleek and intuitive. The motivational tips and wellness insights are a bonus that keeps me consistent. This app has transformed my recovery routine—highly recommend it to beginners and pros alike!
Show more

Good!

It has all the features to be amazing but is not quite there. For some reason it doesn’t save a plunge automatically after ending it. When you get out of cold water you are usually trying to get dry and warm , not mess with your watch. Today I also discovered that if you’re not connected to the internet (e.g: out in the woods with no data) the app won’t load “the products” meaning you can’t start any of the activities…. For the price you’d think this was better developed, so yea kinda disappointed and hoping these issues can be solved so I can fully appreciate the features and improve my rating of the app.

Edit: responsive developer improved on the issues I had we will see how well it work, thank you
Show more

Response from developer

Thank you for you feedback, we have added auto-save to our latest update and have also verified that the watch app does continue to work without an internet connection.

Great but

There is so much more this app could do. Easily add hyperbaric chamber in as another item to track.
Seems like there could be way for data based on the accumulated sessions you do and the medical benefits. I.e long term sauna sessions over several months

To me this is merely a timer, with a colored graph that shows you what you already know… how long you plunged or sauna or swam for and several of your colors are closely aligned sauna and float tank are merely same color

I’d like to see a bit more effort in data, benefit, accumulated benefit, more treatments.

Also it doesn’t relay the information to the health app accurately. Huge negative.

An app should talk to all other fitness apps and relay data accurately.
Show more

Response from developer

Thank you for your feedback. We have added hyperbaric chamber to the latest update, and have verified that the app does relay the info to the health and fitness app accurately. We are working on many more features as well.