SaunaFlow vs Sauna Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SaunaFlow
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No need to watch the clock. Apple Watch automatically guides you through sauna>cold plunge>rest right on your wrist. Build routines on iPhone, run them on your Watch, and refine your flow with every session. ◆ Start instantly with built-in presets Choose from classic presets like 60-min standard, quick single round, or short cold plunge. Changes made on iPhone sync automatically to Apple Watch. ◆ Complete sessions from Apple Watch No need for your smartphone inside the sauna. Phase transitions are notified by haptic feedback, and you can check time remaining and the next phase on your wrist. Use the Digital Crown to skip or add 30 seconds to the current phase; pause has its own on-screen button. ◆ Build your personal routine from history History shows completion rate, best session, notes, and score trends. Re-run great sessions or save them as new presets. ◆ Designed for consistent use Favorite and recommended presets are easy to find on Watch. This isn't just a one-off timer — it's built for repeated use. ◆ Heart rate from Apple Watch Your Watch records heart rate through the whole session and charts the climb in the sauna and the drop during the cold plunge and rest. The deeper the recovery, the higher your Session Score. Each session is saved to Health as a workout. ◆ Streaks, badges and place logging A weekly streak, badges at 10, 50 and 100 sessions and a monthly summary show how consistently you go. Log the venue name, sauna, cold plunge and outdoor temperature, and whether there was löyly. Add days you didn't wear the Watch by hand. You can also start with Siri. ◆ Backup, editing and deleting Save every preset and session to a single file and restore it on your new phone. Edit any session's start time and rounds, or delete it, so one wrong entry doesn't skew your stats forever. ◆ Premium (one-time purchase) Try it free, buy once if you need more. No subscription. [Free] · Up to 5 presets · Your latest 10 sessions in History · Score, notes, streak and backup [Premium] · Unlimited presets · Unlimited history and comparison · Watch display/haptic customization · Re-run and save sessions from history ◆ Safety Notice Displayed times are guidelines. In high-heat environments, always prioritize your health and stop immediately if you feel unwell. ◆ Requirements · iPhone: iOS 17 or later · Apple Watch: watchOS 10 or later · All data stored on-device. No personal data collected or sent to external servers.
Sauna Trainer
Enhance your sauna experience with guided sessions and performance tracking. Features a free timer and basic voice guidance, with optional Pro tools for advanced audio, history, and insights.
- Free sauna timer
- Basic voice guidance
- Full guided audio programs
- Saved session history
- Progress tracking
- Wellness insights
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Sauna Trainer helps you run calmer, more repeatable sauna sessions with a free sauna timer, Basic voice guidance, and optional Pro tools for deeper audio, tracking, history, and insights. The free version includes: • Sauna timer • Basic voice guidance • Session controls and in-session cues Sauna Trainer Pro is an optional one-time $3.99 purchase. There is no trial, subscription, or recurring charge. Sauna Trainer Pro unlocks for life: • Full guided audio programs • Additional coach voices • Ambient background audio • Biometric profile inputs • Saved session history • Calendar history • Progress tracking and wellness insights Your Pro purchase is tied to your Apple Account and can be restored on your devices. Payment starts only when you confirm with Apple. Sauna Trainer is a wellness app, not a medical device. Always use your own judgment in the sauna, consult your healthcare physician before beginning heat exposure if you have any health concerns, and leave immediately if you feel unwell. Privacy Policy: https://saunatrainer.com/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Sauna Trainer at weekly against SaunaFlow's fortnightly. SaunaFlow's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SaunaFlow sells 1 one-off in-app purchase and Sauna Trainer sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
SaunaFlow ships an update fortnightly, Sauna Trainer weekly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | SaunaFlow | Sauna Trainer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 149 MB |
| Age rating | 4+ | 12+ |
| Developer | YANGLI CHEN | Fractelle Inc |
In-app purchases
SaunaFlow
- SaunaFlow Premium$4.99
Sauna Trainer
- Sauna Trainer Pro Monthly7 Days trial$3.991 Month









