Comparison

Hydro Buddy vs Wrist Motion Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Water intake tracking
  • Apple Watch integration
  • iPhone app
  • Privacy-focused
  • No health data collection
Features
Read full description

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.

About

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.

Highlights
  • Apple Watch sensor data capture
  • iCloud CSV data upload
  • Health store authorization
  • macOS companion app integration
  • Research-focused data logging
Read full description

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 call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 4 level
Hydro Buddy versus Wrist Motion Tracker: the parameters behind the verdict, then further details
ParameterHydro BuddyWrist Motion Tracker
Price$0.99Free — better
Rating3.4 (5 ratings)5.0 (1 ratings) — better
Number of ratings5 — better1
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, Apple WatchiPhone, iPod, Apple Watch — better
Requires iOS27.013.0 — better
Further details — not scored
Size1 MB1 MB
Age rating17+4+
DeveloperKronovi CorporationBite Technologies, LLC

Customer experience

Hydro Buddy

All ratings5 ratings
Positive60.0%
Neutral0.0%
Negative40.0%

Wrist Motion Tracker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Hydro Buddy

No in-app purchases

None

Wrist Motion Tracker

No in-app purchases

Questions

Is Hydro Buddy free?
Hydro Buddy costs $0.99, with no in-app purchases.
Is Wrist Motion Tracker free?
Wrist Motion Tracker is free to download, with no in-app purchases.
Which has better reviews, Hydro Buddy or Wrist Motion Tracker?
Wrist Motion Tracker is rated higher. Hydro Buddy averages 3.4 out of 5 from 5 ratings, while Wrist Motion Tracker averages 5.0 from 1 ratings.
Do Hydro Buddy or Wrist Motion Tracker have ads?
Neither Hydro Buddy nor Wrist Motion Tracker shows ads.
Which is updated more often, Hydro Buddy or Wrist Motion Tracker?
Hydro Buddy ships an update every 2 months, and Wrist Motion Tracker every 3 months. Most recently, Hydro Buddy was updated on October 13, 2026 and Wrist Motion Tracker on October 6, 2026.

Other comparisons