Comparison

KAI by Keep Labs vs Tended

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

Head to head
About

KAI by Keep Labs

An AI-powered coach designed to help individuals with rare conditions manage their treatment and symptoms. It offers tools for tracking, understanding health patterns, and staying on track with therapy, providing support for both patients and caregivers.

Highlights
  • AI-powered treatment coaching
  • Symptom tracking and pattern analysis
  • Smart medication reminders
  • Health insights and pattern discovery
  • Support for patients and caregivers
  • Treatment and symptom management tools
Read full description

MEET KAI, YOUR PERSONAL HEALTH ALLY. Kai is an AI health companion for people living with rare conditions, and the people who care for them. Talk to Kai the way you'd talk to someone who knows your story. Kai listens, remembers, and helps you keep a record of what living with your condition is really like – the part that usually gets lost between doctor visits. PICK UP WHERE YOU LEFT OFF The prompts waiting for you when you open Kai aren't generic. They're drawn from your past conversations: a thread you left half-finished, something you mentioned in passing, a pattern worth coming back to. Tap one and you're straight back into it, with no need to explain yourself again. Or just tell Kai what's on your mind. A WEEKLY REFLECTION Most weeks, Kai brings you one thing it wants to understand properly – what a harder week looked like, how a treatment decision felt, who you lean on. It's a conversation, not a form. A few minutes, in your own words. When you're done, Kai writes up what you shared and saves it for you, with points as a small thank-you. YOUR HEALTH JOURNAL For You is your health in your own words: how your symptoms have actually been, and the reflections you've shared. It builds itself as you talk, so there's nothing to log and nothing to keep up with. SHARE YOUR STORY WITH YOUR DOCTOR Before an appointment, create a summary of your health journey so your doctor sees the full picture, not just what you remember in the room. It's yours to take with you whenever you need it. EVERY CONVERSATION, SAVED Everything you've talked about is saved and titled, so you can go back and re-read a conversation instead of trying to remember it. Your past chats, reflections, summaries, symptoms and settings all sit together in one menu. FOR PATIENTS AND CAREGIVERS Whether you're living with a rare condition or caring for someone who is, Kai is someone to turn to with questions, for reassurance, or just to talk through a hard day. DESIGNED WITH CARE We created Kai because living with a rare condition places a real burden on patients and caregivers between doctor visits. Our purpose is simple: to ease that load, so you can focus on living your life as fully as possible. NOTE: Kai does not provide medical advice or diagnosis.

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

KAI by Keep Labs4 screens
Tended4 screens

Verdict

The call

The clearest difference is rating: KAI by Keep Labs at 5.0 against Tended's 4.3. KAI by Keep Labs also leads on in-app purchases (none vs 1) and iOS requirement (15.1 vs 18.0). Tended's advantage is update cadence (every 5 days vs every 3 weeks) and ratings volume (7 vs 2). On price, ads and device support 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. Tended sells 1 one-off in-app purchase. KAI by Keep Labs asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

KAI by Keep Labs holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 2 and 7 respectively.

UpkeepUpdate frequency

KAI by Keep Labs ships an update every 3 weeks, Tended every 5 days. The most recent releases landed on October 9, 2026 and October 19, 2026 respectively.

Scorecard6 real differences · 4 level
KAI by Keep Labs versus Tended: the parameters behind the verdict, then further details
ParameterKAI by Keep LabsTended
PriceFreeFree
Rating5.0 (2 ratings) — better4.3 (7 ratings)
Positive reviews—100.0% of reviews
Number of ratings27 — better
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS15.1 — better18.0
Further details — not scored
Size56 MB79 MB
Age rating12+4+
DeveloperKEEP Labs Inc.Geoff Davis

Customer experience

KAI by Keep Labs

All ratings2 ratings
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

None

KAI by Keep Labs

No in-app purchases

1 purchases

Tended

One-time1
  • Lifetime$34.99

Questions

Is KAI by Keep Labs free?
KAI by Keep Labs is free to download, with no in-app purchases.
Is Tended free?
Tended is free to download, with in-app purchases available.
Which has better reviews, KAI by Keep Labs or Tended?
KAI by Keep Labs is rated higher. KAI by Keep Labs averages 5.0 out of 5 from 2 ratings, while Tended averages 4.3 from 7 ratings.
Do KAI by Keep Labs or Tended have ads?
Neither KAI by Keep Labs nor Tended shows ads.
Which is updated more often, KAI by Keep Labs or Tended?
KAI by Keep Labs ships an update every 3 weeks, and Tended every 5 days. Most recently, KAI by Keep Labs was updated on October 9, 2026 and Tended on October 19, 2026.

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