Comparison

HeadsUp vs GMWater

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

Head to head
About

HeadsUp

This app uses your device's camera or AirPods to monitor your sitting posture. It provides gentle reminders and gamified feedback to help you maintain an upright position, with additional features like a focus timer and statistics tracking.

Highlights
  • Camera or AirPods posture detection
  • Gamified posture feedback
  • Customizable sensitivity
  • Multiple reminder modes
  • Sitting break reminders
  • Pomodoro timer
  • Focus and posture statistics
  • Widget support
Features
Read full description

HeadsUp is an app that detects head position by camera or AirPods and helps to keep sitting posture. Turn on the camera or wear AirPods, and start sitting guarding. You will be transformed into an animal with a watermelon on your head, and when you lower and tilt your head, the watermelon will fall down. Features: - Low head, tilted head, neck probe reminder - Customized sensitivity adjustment It It is recommended to adjust it lower when reading and writing and higher when using computer - Support different reminder modes Real voice, frog chirping, silent mode, reduce the interference in work and study。If you're not comfortable with voice alerts and have an Apple Watch, you'll get the watch's vibrating alerts on your wrist. - Sitting reminder Remind to rest when 40 minutes of continuous sitting is detected. - Tomato Clock Timer It It is not only a posture detection app, but also a tomato clock app, which supports tomato clock timing. - Statistics On On the app, you can view the current day/month/year/the last 7 days/the last 30 days focus time and bad posture statistics, this function uses iCloud Private Database only you can view your own data, to maximize the protection of your privacy. - Widgets Support Support iOS 16 lock screen widget and desktop widget to view current day data and last 7 days data. - No ads, no buzzy push notification - No internet connection required, all local computing, protecting your privacy # Support device Method 1: Camera Detection App utilizes the device's front-facing TrueDepth camera and requires iPhone X or iPad Pro 11-inch and later models to work (i.e. FaceID support). Method 2: AirPods Detection Support AirPods 3/Pro/Max/Beats Fit Pro(support spatial audio) App integrates with the Apple HealthKit to launch watch app and get alert from watch. Contact us twitter: @haozes Email: haozes@gmail.com Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://yaoyaojumprope.com/static/headsup_privacy.html

About

GMWater

Features
Read full description

GMWater is a user-friendly and intuitive app designed to help you stay hydrated throughout the day. With GMWater, you can effortlessly track your daily water intake and ensure you meet your hydration goals. It's the perfect companion for anyone looking to establish healthy hydration habits. Easy Water Tracking: GMWater makes it quick and easy to log your water intake. With just a few taps, you can record the amount of water you drink, keeping a clear record of your hydration progress. GMWater is not just an app; it's a living, breathing ecosystem that evolves alongside your hydration needs. We are committed to providing you with the best tools and features to support your journey towards optimal hydration. Stay tuned for exciting updates as we continue to innovate and bring you new functionalities. With GMWater, your hydration experience will always be at the forefront of progress.

Screenshots

HeadsUp4 screens
GMWater3 screens

Verdict

The call

The clearest difference is in-app purchases: GMWater at none against HeadsUp's 3. GMWater also leads on update cadence (every 2 days vs every 3 weeks). HeadsUp's advantage is device support (5 vs 2). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HeadsUp sells 3 in-app purchases, starting at $0.99 per month. GMWater asks for nothing beyond the download.

UpkeepUpdate frequency

HeadsUp ships an update every 3 weeks, GMWater every 2 days. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 7 level
HeadsUp versus GMWater: the parameters behind the verdict, then further details
ParameterHeadsUpGMWater
PriceFreeFree
Rating4.0 (4 ratings) — better—
Positive reviews68.2% of reviews—
Number of ratings4 — better—
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPod, Mac, Apple Watch — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size169 MB5 MB
Age rating4+17+
Developer家浩 汪春华 黄

In-app purchases

3 purchases

HeadsUp

Subscriptions2
  • Monthly7 Days trial$0.991 Month
  • Yearly7 Days trial$2.991 Year
One-time1
  • Pro$3.99
None

GMWater

No in-app purchases

Questions

Is HeadsUp free?
HeadsUp is free to download, with in-app purchases available.
Is GMWater free?
GMWater is free to download, with no in-app purchases.
Do HeadsUp or GMWater have ads?
Neither HeadsUp nor GMWater shows ads.
Which is updated more often, HeadsUp or GMWater?
HeadsUp ships an update every 3 weeks, and GMWater every 2 days. Most recently, HeadsUp was updated on November 7, 2026 and GMWater on November 4, 2026.

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