Comparison

Meditation Timer Meiso vs Caffeine Tracker

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

Head to head
About

Meditation Timer Meiso

This app offers a simple, ad-free meditation timer with real-time heart rate variability analysis. Track your progress with a contribution graph, achieve badges, and use it standalone on Apple Watch. Integrates with HealthKit and supports multiple languages.

Highlights
  • Real-time HRV analysis
  • Countdown and count-up modes
  • 12-month contribution graph
  • Achievement system
  • Standalone Apple Watch app
  • HealthKit integration
  • Home screen widgets
Features
Read full description

Make quiet time a daily habit. Meiso is a meditation timer without ads or subscriptions. Set a timer, keep a session log, and meditate at your own pace. TIMER Choose a preset such as 3 or 5 minutes, or use count-up mode without a time limit. Switch the ending sound and vibration on or off. SESSION LOG Review your activity graph, weekly meditation time, streaks and total time. Achievement badges help you track milestones. APPLE WATCH Use the timer without keeping your iPhone nearby, then sync your session history to iPhone. WIDGETS AND HEALTH Home screen widgets and Live Activities are supported. With your permission, save meditation time as Mindful Minutes in Apple Health. HEART RATE VARIABILITY (HRV) Record and analyze metrics such as SDNN and RMSSD using beat intervals from a compatible Bluetooth heart rate sensor. Apple Watch uses available heartbeat data. Compatible hardware and permissions are required; available data and metrics depend on recording conditions. An iPhone alone cannot measure HRV in this app. HRV displays are reference information for personal reflection. They do not establish meditation benefits or assess your health, and are not for diagnosis, treatment or medical decisions. Consult a healthcare professional for medical advice. YOUR PREFERENCES Light and dark modes. Japanese, English, Chinese, Korean and Spanish. Free to use, with no ads, subscriptions or account registration. Compatible external hardware is obtained separately.

About

Caffeine Tracker

Features
Read full description

How much caffeine is actually in your body right now? Coffy answers that with a live half-life curve — not a list of cups you drank and forgot about. WATCH IT LEAVE YOUR SYSTEM Every drink you log is plotted on a real metabolic curve. Coffy shows the milligrams still active in your body at this moment, and tunes the half-life to your own sensitivity: 4, 5 or 7 hours. YOUR CUT-OFF TIME Set your bedtime and Coffy works out the last safe cup of the day — the point after which you would still be above the 50 mg sleep threshold when your head hits the pillow. It also projects how many mg you will have left at bedtime, before you pour the next one. TAPER INSTEAD OF QUITTING COLD TURKEY Pick a starting point and a goal, and Coffy builds a weekly taper plan — around 50 mg less each week — then tracks you against this week's target. Cut back without the headaches. Pause or adjust the pace whenever life gets in the way. NUMBERS YOU CAN ACTUALLY TRUST Caffeine values come from USDA FoodData Central, the FDA and peer-reviewed studies, and every drink shows you its source. Espresso, americano, latte, cappuccino, cortado, macchiato, mocha, matcha, tea, cola and energy drinks are built in — add your own for anything else. WATER TOO Track glasses of water alongside your caffeine, with gentle reminders through the day. HISTORY THAT MEANS SOMETHING Week, month and year views, your daily average, how it compares with the period before, and how many days you went over your limit. Day streaks and badges for days under your limit and nights with no late cup. REMINDERS THAT RESPECT YOUR SLEEP A cut-off alert, water reminders and an evening check-in — each one switchable. APPLE HEALTH & CSV Sync your caffeine intake to Apple Health, and export everything to CSV whenever you want it. Coffy is not trying to make you quit. It is here so you can time it right: full energy when you need it, clean sleep when you want it. Payment & Subscription Information: - Payment is charged to your Apple Account at confirmation of purchase. - Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. - Your account is charged for renewal within 24 hours prior to the end of the current period. - You can manage your subscriptions and turn off auto-renewal in your account settings after purchase. - No refund is provided for the unused portion of a subscription. Privacy Policy: https://desing304.github.io/caffeine-tracker-legal/privacy.html Terms of Use: https://desing304.github.io/caffeine-tracker-legal/termsofuse.html

Screenshots

Meditation Timer Meiso3 screens
Caffeine Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: Meditation Timer Meiso at none against Caffeine Tracker's 3. On price, update cadence, 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. Caffeine Tracker sells 3 in-app purchases, starting at $3.99 per 7 days. Meditation Timer Meiso asks for nothing beyond the download.

UpkeepUpdate frequency

Meditation Timer Meiso ships an update every 9 days, Caffeine Tracker weekly. Both last shipped on October 16, 2026.

Scorecard1 real difference · 9 level
Meditation Timer Meiso versus Caffeine Tracker: the parameters behind the verdict, then further details
ParameterMeditation Timer MeisoCaffeine Tracker
PriceFreeFree
Rating4.8 (4 ratings) — better—
Positive reviews62.5% of reviews—
Number of ratings4 — better—
Update frequencyEvery 9 daysWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS17.016.4 — better
Further details — not scored
Size5 MB79 MB
Age rating4+4+
DeveloperMasayuki YamajiEMIR YAVCIN

In-app purchases

None

Meditation Timer Meiso

No in-app purchases

3 purchases

Caffeine Tracker

Subscriptions2
  • Premium Weekly$3.997 Days
  • Premium Yearly3 Days trial$24.991 Year
One-time1
  • Lifetime Premium$39.99

Questions

Is Meditation Timer Meiso free?
Meditation Timer Meiso is free to download, with no in-app purchases.
Is Caffeine Tracker free?
Caffeine Tracker is free to download, with in-app purchases available.
Do Meditation Timer Meiso or Caffeine Tracker have ads?
Neither Meditation Timer Meiso nor Caffeine Tracker shows ads.
Which is updated more often, Meditation Timer Meiso or Caffeine Tracker?
Meditation Timer Meiso ships an update every 9 days, and Caffeine Tracker weekly. Most recently, Meditation Timer Meiso was updated on October 16, 2026 and Caffeine Tracker on October 16, 2026.

Other comparisons