Comparison

Trinki vs WaterTracker

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

Head to head
About

Trinki

This app calculates your personalized daily water intake goal based on scientific guidelines and adjusts it for weather conditions. It provides smart, adaptive reminders throughout the day and offers a map of public drinking fountains.

Highlights
  • Personalized hydration goals
  • Weather-aware goal adjustments
  • Smart and adaptive reminders
  • Fountain map for Germany
  • Progress tracking
  • Flexible glass sizes
  • Quiet hours
Features
Read full description

Drink enough — automatically. Trinki calculates your perfect daily goal and reminds you to drink at exactly the right moment. Science-based, weather-aware and 100% private — no account, no cloud, no subscription. WHY TRINKI? • Scientifically precise — your goal follows EFSA/DGE guidelines based on weight, sex and activity • Weather-smart — automatically raises your goal on hot days • Smart & adaptive — minute-precise reminders that know your pace and learn your drinking routine • 100% privacy — all data stays on your device FEATURES • Fountain map — over 22,000 public drinking fountains across Germany, free for everyone • Personalized hydration goals for your body • Reminders at the right moment — after every glass, Trinki replans the rest of your day • A good-morning greeting with the first reminder of the day • Automatic weather adjustment in the heat • Motivating progress view with a daily overview • Flexible glass sizes (50–1000 ml) • Quiet hours for your sleep time • Fresh design for the latest iOS ⌚ TRINKI PRO (optional one-time purchase, no subscription) • Apple Watch app — log glasses on your wrist, ring at a glance • Home and Lock Screen widgets — quick logging, including Shortcuts and Siri • Apple Health — your water lands next to your health data • Gentle reminders without sound • All future Pro features included SCIENCE-BASED Based on EFSA and DGE recommendations. Trinki accounts for: • Biological sex (women ~2.0 L, men ~2.5 L of beverages) • Body weight (±10 ml per kg) • Activity level (factor 1.0 to 1.6) • Ambient temperature YOUR DATA IS YOURS • No sign-up required • No cloud sync, no tracking • GDPR-compliant and fully offline • No subscription — Trinki Pro is a one-time purchase too HOW IT WORKS 1. Set up in 2 minutes 2. Trinki calculates your optimal daily goal 3. Get gentle reminders 4. Track with a single tap 5. Stay healthily hydrated! Made in Germany. Download Trinki and feel the difference.

About

WaterTracker

Features
Read full description

WaterTracker makes it easy to not only track the amount of water you've had each day, but also to set targets, see statistics, and more. And best of all, it is completely free! No in-app purchases, no subscriptions - ever! Featuring an Apple Watch app, home and lock screen widgets, Shortcuts capability, Control Centre widgets, and more, WaterTracker is your one stop-shop for keeping track of your water. Set your target, and start logging today. With WaterTracker you can create presets - a set amount with its own name, icon, colour, and unit - so that you can easily log that morning glass of water, or that bottle after your run. It also connects to Apple Health, and can read your water intake from other apps, and can write to Apple Health as well. You can easily export your water, target, and preset data in CSV format, or to a PDF in the form of reports, showing your weekly, monthly, or all-time statistics. Please contact Support@LifeTracker.Studio with any concerns, bugs, issues, or suggestions, or visit LifeTracker.Studio for more information on WaterTracker or any of our other apps. Happy Tracking!

Screenshots

Trinki4 screens
WaterTracker4 screens

Verdict

The call

The clearest difference is in-app purchases: WaterTracker at none against Trinki's 4. Trinki's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Trinki sells 4 one-off in-app purchases. WaterTracker asks for nothing beyond the download.

UpkeepUpdate frequency

Trinki ships an update every 4 days, WaterTracker every 3 weeks. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.

Scorecard2 real differences Ā· 6 level
Trinki versus WaterTracker: the parameters behind the verdict, then further details
ParameterTrinkiWaterTracker
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 4 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, Apple WatchiPhone, Apple Watch
Requires iOS18.5 — better18.6
Further details — not scored
Size10 MB29 MB
Age rating4+4+
DeveloperNoel WeinbergEthan Milton Wilde

In-app purchases

4 purchases

Trinki

One-time4
  • Espresso$1.99
  • Cappuccino$3.99
  • Trinki Pro$3.99
Show 1 more
  • Coffee & Cake$5.99
None

WaterTracker

No in-app purchases

Questions

Is Trinki free?
Trinki is free to download, with in-app purchases available.
Is WaterTracker free?
WaterTracker is free to download, with no in-app purchases.
Do Trinki or WaterTracker have ads?
Neither Trinki nor WaterTracker shows ads.
Which is updated more often, Trinki or WaterTracker?
Trinki ships an update every 4 days, and WaterTracker every 3 weeks. Most recently, Trinki was updated on October 23, 2026 and WaterTracker on October 16, 2026.

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