# A water reminder app for Mac, feature by feature

A water reminder app for Mac keeps your daily hydration goal in the menu bar, logs a glass in one tap, and nudges you on a cadence you set rather than on a schedule someone else picked.

- URL: https://swiftfox.studio/blog/water-reminder-app-for-mac
- About: https://swiftfox.studio/apps/aqumi
- Published: 2026-07-30
- Updated: 2026-07-30
- Publisher: Swiftfox Studio (https://swiftfox.studio)

## In short

- Aqumi's menu bar droplet carries a progress bar that fills toward the day's goal, so the state of your hydration is a glance rather than a screen.
- Logging is one tap on a preset you shaped yourself, or Command Shift L from anywhere without opening a window.
- Reminders run on your own interval, in notification or silent mode, and every banner carries Log, Snooze and Mute for today.
- The goal comes from a short profile or from a number you type, and the whole log stays on your Mac - no HealthKit, no account, no sync.

## What a water reminder app actually has to do

Two things, and they pull against each other. It has to interrupt you often
enough that you notice you have not drunk anything since breakfast, and it has to
cost so little attention that you never turn it off. Almost every app in this
category fails the second half: it nags on a fixed schedule, it fires during
meetings, and logging a glass takes four taps in a window you have to go and
find.

[Aqumi](https://swiftfox.studio/apps/aqumi) is the one this article walks through. It lives as a droplet
in the macOS menu bar, keeps its log on the machine, and everything below is in
the shipping version.

## The droplet in the menu bar

The status item is the whole interface most days. It is a droplet mark with a
progress bar underneath it, and the bar fills as you get closer to the day's
goal. There is no percentage to read and no number competing with the clock -
the bar is either nearly empty at four in the afternoon, which tells you
something, or it is not.

Clicking it opens the popover. Pressing **Command Shift W** opens the same
popover from anywhere on the Mac, and **Command Shift L** logs your last drink
without opening anything at all. Both use Carbon hotkey registration, so Aqumi
needs no Accessibility permission to make them work.

## Logging, in one tap or one keystroke

Logging is the part that has to be nearly free, so the popover leads with it: a
row of drink presets, each a name, a volume and an icon, sitting one tap away.

![The Aqumi popover in the macOS menu bar, showing the day's hydration total against the goal and a row of one-tap drink presets](https://swiftfox.studio/aqumi/shot-1.jpg "The popover leads with the day's progress and the presets pinned to the quick-add row.")

The presets are yours to shape. Aqumi seeds a few on first launch, and you add,
edit, reorder and pin your own in Settings - a 250 ml glass, the 750 ml bottle on
your desk, the coffee you were going to count anyway. Whichever ones you pin show
up in the popover's quick-add row; the rest stay in the list a scroll away.

Units are metric or imperial, and the choice is a display concern rather than a
data one, so switching does not rewrite your history.

## Where the daily goal comes from

You fill in a short profile once - weight, age, sex and activity level - and
Aqumi turns it into a daily volume. If you already know your number, type it in
and the profile stops mattering.

That escape hatch is deliberate. The precise figure is the least important part
of hydration tracking: the gap between a calculated 2.4 litres and the 2 litres
you would have guessed changes nothing about your day, whereas noticing at 4pm
that you have logged one glass changes it a lot. The goal exists to give the
progress bar a top end, not to be medical advice.

## Reminders you can live with

Reminders run on an interval you set - 90 minutes out of the box - and in one of
two modes. **Notification** posts a banner. **Silent** posts nothing at all and
simply lets the menu bar droplet be the reminder, which is the mode people who
dislike reminders end up using.

![The Aqumi reminder settings, with the reminder cadence, notification or silent mode, and the quiet hours range](https://swiftfox.studio/aqumi/shot-2.jpg "Cadence, mode and quiet hours, which default to 23:00 through 08:00.")

The banner carries its own actions, so responding to it never means opening the
app. **Log** records a drink and dismisses. **Snooze 30 minutes** and **Snooze 1
hour** push the next one back. **Mute for today** stops them until tomorrow,
which is the button that keeps the app installed - an app you cannot silence for
an afternoon is an app you uninstall on the afternoon you needed to.

Quiet hours cover the rest. They default to 23:00 through 08:00 and take a range
of your own, so nothing arrives while you are asleep. On top of that, these are
ordinary macOS notifications, so a Focus or Do Not Disturb schedule holds them
back the way it holds back everything else.

## What a month of it looks like

The statistics screen answers the only question worth asking after a few weeks:
is this actually working.

![The Aqumi statistics view with a weekly bar chart, a 30-day trend line and the current streak](https://swiftfox.studio/aqumi/shot-3.jpg "A weekly chart, a 30-day trend and the streak, all computed from the local log.")

There is a weekly bar chart, a 30-day trend and a streak counter for days you hit
the goal. All of it is computed from a log stored on your Mac. Nothing is written
to Apple Health, nothing is uploaded, and there is no account to create before
the first glass.

That last point is not a privacy flourish so much as a friction one. A hydration
app that opens with a sign-up form is asking for more commitment than the problem
deserves.

## What it deliberately does not do

There is **no phone app and no sync**. Your log lives on one Mac, which is a real
limitation and worth saying plainly: if you drink two litres away from your desk,
Aqumi will not know.

There is **no coaching layer** - no scores, no badges, no daily summary email, no
gamification beyond the streak. The interesting number is whether the bar is
full, and everything else would be padding around it.

It asks for **one system permission**, notifications, and works without it in
silent mode. No HealthKit, no location, no file access. The app is sandboxed,
signed and notarised, and the only network traffic is licence checks and update
requests.

## What it costs, and what else to look at

Aqumi runs on **macOS 14 or later**, on Apple Silicon and Intel, and takes about
25 MB. It is a **one-time $5 purchase** rather than a subscription, with a 14-day
trial that needs no card and no email. The full specification is on
[the Aqumi page](https://swiftfox.studio/apps/aqumi).

Hydration is one of the three things a desk quietly costs you, and the other two
have their own cadence. If your eyes ache by six and you sit for three hours
without moving, that is [Recess](https://swiftfox.studio/apps/recess), which runs eye-rest and stretch
timers on separate clocks. There is a wider look at both in
[desk health apps for Mac](https://swiftfox.studio/blog/desk-health-apps-for-mac).
