# Contrast: Cold Plunge & Sauna — Ice bath recovery tracker

> Ice bath recovery tracker (iPhone/iPad app by Yoshifumi Sato.)

- Source: https://appshunter.io/ios/app/contrast-cold-plunge-and-sauna/id6791827204 (this page in markdown: same URL + `.md`)
- Developer: [Yoshifumi Sato](https://appshunter.io/developer/6780413827)
- Category: Health & Fitness
- Price: $4.99
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, Japanese
- Released: 2026-07-23
- Data updated: 2026-07-27
- User reviews in markdown: https://appshunter.io/ios/app/contrast-cold-plunge-and-sauna/id6791827204/reviews.md

## What is Contrast?

Contrast is the simple, one-tap way to log your sauna and cold plunge sessions. No subscription, no account, no wearable required.

Track time and temperature for every hot and cold round, watch your streak grow, and see your progress at a glance. Built for cold-water immersion, contrast bathing, and post-sauna recovery.

FEATURES
- One-tap logging of hot and cold rounds with a live timer
- Record time and temperature per round, in Celsius or Fahrenheit
- History calendar and detailed session view
- Stats: totals, averages, longest session, and current streak
- Local reminders to keep your routine going
- Fully offline. Your data stays on your device and is never uploaded
- One-time purchase. Every feature unlocked forever, with no subscription

Whether you call it a cold plunge, an ice bath, or a contrast bath, Contrast keeps the record so you can focus on the practice.

Note: Cold-water immersion can carry health risks. Consult a physician if you have any health concerns.


## Version history (last 1 release)

### 1.0 — 2026-07-23

No release notes.

## More apps by Yoshifumi Sato

- [DualShot: Front & Back Cam](https://appshunter.io/ios/app/dualshot-front-and-back-cam/id6788761561)
- [Progressly – Body Progress](https://appshunter.io/ios/app/progressly-body-progress/id6789591055)
- [Holdly – Isometric Timer](https://appshunter.io/ios/app/holdly-isometric-timer/id6789790139)
- [かんじ3年生 小学3年の漢字ドリル](https://appshunter.io/ios/app/3-3/id6790055787)
- [DoseMate: Planted Tank Ferts](https://appshunter.io/ios/app/dosemate-planted-tank-ferts/id6790429576)
- [Kotoba: Learn Japanese N5](https://appshunter.io/ios/app/kotoba-learn-japanese-n5/id6790646798)

All apps by Yoshifumi Sato: https://appshunter.io/developer/6780413827

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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 2026-07-27.*