GoPolar alternatives
GoPolar covers more ground than most apps in this category: cold plunge, sauna, red light and hyperbaric oxygen, on Apple and Garmin watches, with a community and challenges. If you want those things, stay with it. If you want an Apple Watch log that starts the round when you get in, measures the water itself and keeps a free tier that does not expire, Contrast is narrower and goes further on that one job.
Side by side
| GoPolar | Contrast | |
|---|---|---|
| Apple Watch | Yes | Yes |
| Garmin | Yes | No |
| Red light and hyperbaric oxygen | Yes | No |
| Starts a round when you get in | Not advertised | On Apple Watch Ultra or Series 10+ |
| Water temperature | Logged | Measured, in six bands |
| Heart rate | Yes | Yes, per round |
| Community and challenges | Yes | No |
| Evidence label on each metric | Not advertised | Yes |
| Price | Free download, with a subscription | Free, with optional Pro or a lifetime purchase |
GoPolar column from its App Store listing, checked 2 October 2026. "Not advertised" means the listing does not mention it, not that the app cannot do it.
What GoPolar does
- Logs cold plunge, cold shower, sauna, red light and hyperbaric oxygen sessions.
- Records duration, temperature, heart rate, blood oxygen and written reflections.
- Works with Apple and Garmin watches.
- Has a community, challenges and rewards, and a library of tips.
What its low-star reviews keep raising
Recurring themes in its 1–3 star App Store reviews, paraphrased rather than quoted. Each review is one person's experience, and some will describe problems since fixed.
- Sessions recorded on a watch not syncing into the app.
- The price of the subscription for what the app does.
- Garmin support not being where reviewers expected to find it.
- Sauna sessions having to be entered by hand, because the watch was not worn in the heat.
Where Contrast is different
- A round starts on its own when you get into water on an Apple Watch Ultra or Series 10 and later, and the water decides hot or cold.
- Time in six water temperature bands, measured rather than entered.
- A free tier with no time limit: watch tracking, Apple Health, manual logging and weekly totals.
- Fourteen metrics, each with its method, its limits and an evidence label, and forty citations inside the app.
- No feed, no challenges and no badges. That is a choice, not a gap waiting to be filled.
Stay with GoPolar if
- You use a Garmin watch. Contrast runs on Apple Watch only, and will stay that way.
- You want red light or hyperbaric oxygen in the same log as heat and cold.
- You like a community, challenges and rewards. Contrast has none of them.
Common questions
Does Contrast work with Garmin?
No. Contrast runs on iPhone and Apple Watch only, because automatic rounds depend on the Apple Watch water temperature sensor and on Apple Health.
Can Contrast track red light therapy?
No. It records heat, cold and the rest between them, and nothing else.
Contrast is not affiliated with GoPolar: Cold Plunge & Sauna or The Wellness Company, Inc.. Their name is used here only to identify their app.