Comparison

Trinki vs Tended

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

Tended

This health journal helps you track chronic illness symptoms, pain, and daily well-being. Log entries quickly, even on difficult days, and identify potential patterns to better prepare for doctor appointments. It's designed for fluctuating conditions and prioritizes your privacy.

Highlights
  • Log symptoms, pain, energy, mood, and more
  • Identify patterns and potential triggers
  • Prepare for doctor appointments with reports
  • Condition-specific starter sets
  • On-device AI for descriptions
  • Privacy-focused with no data collection
Features
Read full description

Track chronic illness without turning your health into homework. Tended is a privacy-first health journal and symptom tracker for people living with long-term symptoms, pain, fatigue, flares, and appointments that never quite fit into ten minutes. Log in seconds, notice possible patterns, and prepare for doctor appointments without streaks, guilt, accounts, analytics, data collection, or external servers. LOG IN SECONDS, EVEN ON HARD DAYS When thinking is hard, Tended keeps logging light. Record a day rating, symptoms, pain, medications, energy, sleep, mood, bowel changes, food, triggers, activities, periods, photos, and notes at your own pace. Use Apple Watch, widgets, Siri, the Lock Screen, or the full app when opening your phone feels like too much. Duplicate yesterday, edit only what changed, or describe your day in your own words with optional on-device AI. BUILT FOR CHRONIC ILLNESS Tended is made for fluctuating conditions where a normal habit tracker does not fit. Use it as a chronic illness journal, symptom tracker, pain tracker, medication tracker, flare tracker, energy tracking tool, sleep tracking companion, and body map. Condition starter sets help you begin with relevant symptoms and triggers for fibromyalgia, ME/CFS, lupus, endometriosis, PMOS / PCOS, POTS, EDS, migraine, MS, IBD, PMDD, and many more. SEE PATTERNS IN YOUR OWN DATA Your journal can become more useful over time. Tended may help you notice possible links between symptoms, medications, food, sleep, activity, weather, Apple Health averages, menstrual cycle phases, flares, and better days. Insights are based on what you log yourself. They are self-reported observations, not clinical findings, so you stay in charge of what feels useful. PREPARE FOR APPOINTMENTS When brain fog arrives before your appointment, Tended helps you bring the important parts with you. Use Doctor Mode, appointment notes, body map history, medication adherence, symptom trends, focused visual reports, and PDF health reports to explain what has been happening. Tended+ unlocks longer history, deeper pattern insights, trigger experiments, appointment-ready PDF health reports, focused evidence and care PDFs, and CSV export for people who want to go deeper. STAY CONNECTED, WITHOUT OVERSHARING If you choose, Tended can help you share small practical updates with someone you trust through Supported, the carer companion app. Send a quiet check-in, a quick need, or a regular summary without exposing your whole private journal. FREE FOREVER. NO GUILT. Every tracking feature is free and unlimited. There are no streaks, no shame, and no "you missed a day" messages. Tended+ is for people who want longer-term insight and appointment-ready reports. The free journal stays useful on its own. PRIVATE BY DESIGN No account. No analytics. No data collection. No external server. Your journal lives on your device or in your personal iCloud. Apple Health data is read only when you allow it. Optional on-device AI features run on your device where available; your journal is not sent to Cocoacorn servers. Use Tended gently, at your own pace. Bring what helps. Leave the rest. MEDICAL DISCLAIMER Tended is a personal health journal, not a medical device or clinical tool. It is not a substitute for medical advice or emergency support. Content is based on what you log yourself and may be incomplete or inaccurate. Always consult a qualified healthcare professional for medical decisions. Tended does not monitor journal entries for distress. If you are in crisis, contact local emergency or crisis support. Terms of Use: https://www.cocoacorn.com/tended/terms Privacy Policy: https://www.cocoacorn.com/tended/privacy

Screenshots

Trinki4 screens
Tended4 screens

Verdict

The call

Trinki and Tended are too close to call on the numbers: across 8 compared parameters — price, review sentiment, update cadence and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Trinki sells 4 one-off in-app purchases and Tended sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Trinki ships an update every 4 days, Tended every 5 days. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

ScorecardNo meaningful differences
Trinki versus Tended: the parameters behind the verdict, then further details
ParameterTrinkiTended
PriceFreeFree
Rating—4.3 (7 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—7 — better
Update frequencyEvery 4 days — betterEvery 5 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, Apple WatchiPhone, iPad, Apple Watch — better
Requires iOS18.518.0 — better
Further details — not scored
Size10 MB79 MB
Age rating4+4+
DeveloperNoel WeinbergGeoff Davis

Customer experience

Trinki

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Tended

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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
1 purchases

Tended

One-time1
  • Lifetime$34.99

Questions

Is Trinki free?
Trinki is free to download, with in-app purchases available.
Is Tended free?
Tended is free to download, with in-app purchases available.
Do Trinki or Tended have ads?
Neither Trinki nor Tended shows ads.
Which is updated more often, Trinki or Tended?
Trinki ships an update every 4 days, and Tended every 5 days. Most recently, Trinki was updated on October 23, 2026 and Tended on October 24, 2026.

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