What WaterMinder is actually good at
WaterMinder has been the default answer to "track my water" for over a decade, and it earned that on the wrist. Log a glass from an Apple Watch complication or with Siri, see the ring fill, and have all of it land in Apple Health where your other health data already lives. It calculates a target from your weight and activity, ships custom cup sizes, has widgets on every Apple platform, and runs on iPhone, iPad, Apple Watch, Mac and Android.
The Mac app is a real Mac app, not a stretched iPad build: macOS 14 or later, about 44 MB. It is free to download, and the useful half is Premium at $2.99 a month, $14.99 a year or $29.99 once.
If you want one hydration log across a phone, a watch and Apple Health, buy WaterMinder. Nothing below syncs anywhere, and that is the trade the rest of this page is about.
Why people go looking anyway
Everything on this page except WaterMinder is a Mac app, and that is the point. Hydration apps are overwhelmingly phone apps, because the phone is always on you. But if you are the sort of person who forgets to drink, you usually forget in one specific place: at a desk, in front of a Mac, for six hours. A reminder that arrives on a phone in another room is a reminder you acknowledge and do not act on.
The subscription for a counter. $14.99 a year is not much, and it is still a recurring charge for something that adds numbers together. The lifetime option exists precisely because people say this.
Health integration you did not ask for. Writing to Apple Health is the whole point for some people and an unwanted second copy of a personal log for others.
The Mac field, including the free ones
Mizu is free and open source, a small macOS reminder that nudges you to drink. If you want nothing more than a nudge, start there.
Just Drink runs on Mac and Windows, has a five-day trial and then costs about one euro once, for life. It is minimal on purpose.
Hydration Hostage sits in the menu bar and takes over your screen on a schedule until the camera confirms you actually drank something. Whether that is brilliant or unbearable depends entirely on you, but it is the honest extreme of the "reminders do not work on me" problem.
TakeSip is a native menu bar water reminder built around being quiet and not interrupting deep work, which is the opposite bet from the one above.
Reminders and Shortcuts are free and already installed. A recurring reminder every ninety minutes will do most of this job, minus the counting.
A goal in the menu bar
Aqumi is the Mac-only version of this idea. Fill in a profile once - weight, age, sex, activity level - and it works out a daily target in milliliters, or you type your own. Metric or imperial, your choice of presets, and logging is one tap on the preset you actually use.
The menu bar droplet fills as the day goes on, which means the answer to "have I had enough today" is already on screen and does not need an app opened. Since 1.1.4 there is a desktop widget too, in two sizes, with quick-add buttons that log a drink without the app being open - one Apple platform rather than five, but the one the Mac-only case is about.
Reminders run on a cadence you set, as a notification or silently, and they know about quiet hours and about Do Not Disturb, so a focus block does not collect eleven backlogged nudges. You can log, snooze or mute straight from the reminder without opening anything. Two keyboard shortcuts - one for the popover, one to log without looking - are rebindable.
History is a weekly chart, a daily average, a goal-hit rate, a streak and a 30-day trend, computed from a local log.
The limits are worth stating plainly, because they are the reason to buy WaterMinder instead. Aqumi does not write to Apple Health. There is no iPhone app, no watch app and no sync, so what you drink away from the Mac is not counted unless you log it when you get back. It asks for exactly one permission, notifications, and still works if you refuse it. It is $5.99 once with a 30-day trial that needs no card and no email, and the mechanism is covered feature by feature in a water reminder app for Mac.
Where the alternatives win
WaterMinder wins on the Apple Watch, on Apple Health, and on being with you when you are not at a desk. A complication you tap without unlocking anything is a better logging interface than any Mac app can be, and ten years of history in one place has real value.
Waterllama wins on making it fun: streaks that unlock creatures, a friendly tone, and a design people actually stick with. It lives on iPhone and Apple Watch.
Plant Nanny wins on the same trick with a plant that wilts if you neglect it, which works on people for whom numbers do not.
Mizu and Just Drink win on price. Free, or about a euro once, for the nudge without the ledger.
Reminders wins on already being there.
Side by side
| Tool | Where it lives | Apple Health | Sync | Cost |
|---|---|---|---|---|
| WaterMinder | iPhone, Watch, iPad, Mac, Android | Yes | Yes | Free, Premium $2.99/mo, $14.99/yr or $29.99 once |
| Waterllama | iPhone, Apple Watch | Yes | Yes | Free with a subscription |
| Mizu | Mac | No | No | Free, open source |
| Just Drink | Mac, Windows | No | No | About EUR 0.99 once |
| Aqumi | One Mac | No | No | $5.99 once |
The choice is not really about features. It is about where you are when you forget. If that is anywhere, buy the app that is on your wrist. If it is always the same chair in front of the same Mac, the reminder should be there, and the whole thing costs less than three months of the subscription.
Water is one of three things a desk quietly takes from you. The other two are your eyes and your back, which is Recess' job - it is pay what you want, zero included - and both are covered in desk health apps for Mac.
Prices and features checked on 5 September 2026.
