Hydro Buddy vs Wrist Motion Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hydro Buddy
This app offers a straightforward way to monitor your daily water intake directly from your Apple Watch or iPhone. It prioritizes user privacy by not collecting sensitive health data, ensuring your information stays secure and under your control.
- Water intake tracking
- Apple Watch integration
- iPhone app
- Privacy-focused
- No health data collection
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Hydro Buddy is your premier water tracking companion. Experience a no-frills method to keep track of your water intake natively on your Apple Watch, in a beautiful package that also respects your privacy. We don't collect your health metrics, so you can rest assured that your sensitive data remains within your control.
Wrist Motion Tracker
This application captures and logs motion data from your Apple Watch's sensors. It uploads the data to iCloud in a CSV format for easy analysis. A companion macOS app is required to retrieve and process the logged information.
- Apple Watch sensor data capture
- iCloud CSV data upload
- Health store authorization
- macOS companion app integration
- Research-focused data logging
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This app provides wrist motion tracking capability via capturing sensor data from the apple watch. This app pulls motion data directly from the watch's accelerometer and gyroscope sensors and uploads this directly to iCloud in CSV format (spreadsheet style). To begin recording, click "Start Log". The user is prompted to authorize health-store access, and once authorized, logging begins. Press "Stop log" to stop the recording, wrap the data into a file, and upload it to iCloud. This app works in conjunction with a macOS counterpart application that retrieves the files from the iCloud container, sorts by date and time of upload, and fetches each record to download to your computer. This app is developed and maintained by John Lawler and Cameron Burroughs, a research development team under Clemson University for use with tracking eating habits.
Verdict
The clearest difference is price: Wrist Motion Tracker at Free against Hydro Buddy's $0.99. Wrist Motion Tracker also leads on rating (5.0 vs 3.4) and iOS requirement (13.0 vs 27.0). Hydro Buddy's advantage is ratings volume (5 vs 1). On update cadence, ads, in-app purchases and device support 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
Wrist Motion Tracker is free to download; Hydro Buddy costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Wrist Motion Tracker holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: Hydro Buddy has 5 ratings behind it against 1, so its average is the more settled of the two.
Hydro Buddy ships an update every 2 months, Wrist Motion Tracker every 3 months. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.
| Parameter | Hydro Buddy | Wrist Motion Tracker |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.4 (5 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, Apple Watch | iPhone, iPod, Apple Watch — better |
| Requires iOS | 27.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | Kronovi Corporation | Bite Technologies, LLC |
Customer experience
Hydro Buddy
Wrist Motion Tracker
In-app purchases
Hydro Buddy
No in-app purchases
Wrist Motion Tracker
No in-app purchases
Questions
Is Hydro Buddy free?
Is Wrist Motion Tracker free?
Which has better reviews, Hydro Buddy or Wrist Motion Tracker?
Do Hydro Buddy or Wrist Motion Tracker have ads?
Which is updated more often, Hydro Buddy or Wrist Motion Tracker?
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