Chill vs Bob Environmental
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chill
This app is a dedicated companion for cold plunge sessions, offering precision timing, guided breathing exercises, and rhythmic chimes to enhance your cold immersion experience. It helps optimize your practice for physical recovery, mental clarity, and energy boosts.
- Customizable session durations
- Guided box breathing exercise
- 30-second interval chimes
- 10-second final countdown
- Enhances cold immersion benefits
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Cold plunging asks you to be present. Our Chill - Cold Plunge Timer App takes care of the timing so you can focus on the moment. Choose your duration, set the temperature, settle into guided box breathing, and keep a private record of the sessions you complete. TIME YOUR PLUNGE Choose a session length from 1 to 59 minutes and select the water temperature for accurate record keeping. Watch the large countdown, hear a gentle chime every 30 seconds while Chill is on screen, and turn on Audio Countdown for spoken time updates and the final 10-second countdown. With notifications enabled, Chill can alert you when your timer completes. BREATHE WITH GUIDANCE Follow the on-screen box breathing animation during your session. You can turn the animation or spoken countdown on or off in Settings. LOOK BACK See completed sessions in your iPhone history, including time in the water and the temperature you selected. Time a plunge on Apple Watch and have it appear in your iPhone history when the devices connect. Watch-face complications can show your plunge count. MAKE IT YOURS WITH CHILL+ The timer, guided breathing, basic history, and Apple Watch timer are free. Chill+ is a one-time purchase that adds: • Month and year activity grids • Streaks and consecutive-day goals • Plunge reminders on the days you choose • Private notes about each session • Activity-grid Home Screen widgets • Streak and goal views on Apple Watch PRIVATE BY DESIGN Your sessions and notes are stored locally on your devices. Chill has no account, sign-up, ads, or tracking, and it does not upload your records to a developer server. Device backups are controlled by your Apple settings. Chill is a timing and journaling tool, not a medical or safety device. Cold water immersion has risks; seek medical advice if you have concerns, and never rely on a timer or alert as your only safety measure.
Bob Environmental
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Bob is the app that turns your Apple Watch and your iPhone into a smart sensor and you into a scientist. Smartwatches have 6 of the same sensors that scientists use to study the ocean and the earth. Take, save, and share environmental data with anyone, anywhere, anytime. ~~~ Data collection simplified. ~~~ Tap a button to start logging data. Done logging? Tap again. ~~~ Geotagging? ~~~ L1 and L5 GPS, GLONASS, Galileo, QZSS, and BeiDou works seamlessly with local Wi-Fi and Bluetooth networks to provide location and altitude at accuracies up to 10 meters. ~~~ Moving three-dimensionally through space? ~~~ The accelerometer, gyroscope, and compass tracks watch motion. ~~~ Air pressure? ~~~ There's a barometer for that. ~~~ Are you in water? ~~~ Apple Watch Ultra, Series 11 or Series 10 also measure water temperature and depth to 0.1 C and 0.05 meters. ~~~ Set it and forget it! ~~~ Automatic water lock for uninterrupted data collection. ~~~ The more the merrier!~~~ Record data on your watch and your phone at the same time. ~~~ Automatic archiving ~~~ Tap stop and your data is automatically saved to iCloud. ~~~ Explore your data. ~~~ The watch logbook has a quick summary. For more details, graphically explore your data on the phone app. ~~~ Share like a text or photo. ~~~ Instead of sending a cat pic to Nana and PopPop, send them your latest data. Converted internally to a human and machine readable JSON, they will also be impressed by the comprehensive metadata. ~~~ Hit us with your feedback ~~~ If you find a bug or have an idea for a cool feature, reach out by emailing lifesaver@tiniscientific.com _______________________\\ Tini Scientific is on a mission to provide ocean data to anyone, anywhere, anytime. Armed decades of expertise in oceanography, technology, and pop culture, Tini is revolutionizing ocean observations by developing a truly scalable network that returns timely, relevant, and usable ocean data.
Screenshots
Verdict
The clearest difference is price: Chill at Free against Bob Environmental's $0.99. Bob Environmental's advantage is update cadence (every 2 weeks vs every 4 months). On ads, in-app purchases, device support 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
Chill is free to download; Bob Environmental costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Chill ships an update every 4 months, Bob Environmental every 2 weeks. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.
| Parameter | Chill | Bob Environmental |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Anda Blandu | Kim Martini |
In-app purchases
Chill
No in-app purchases
Bob Environmental
No in-app purchases
Questions
Is Chill free?
Is Bob Environmental free?
Do Chill or Bob Environmental have ads?
Which is updated more often, Chill or Bob Environmental?
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