Comparison

Caffeine Tracker vs STHLM Sauna

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

Head to head
About

Caffeine Tracker

Features
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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

About

STHLM Sauna

Features
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STHLM Sauna för dig som badar bastu hos oss vid vattnet i Stockholm. Boka ditt pass, betala i appen och få koden till dörren när det är dags. BOKA ENKELT Se lediga tider för våra bastur, välj den som passar och betala direkt med kort, Swish eller Apple Pay. INPASSERING I APPEN När din bokning börjar visas koden till dörren på bokningen. Den finns kvar i telefonen även om du står utan täckning när du kommer fram. DINA BOKNINGAR PÅ ETT STÄLLE Kommande och tidigare pass, tider, plats och pris. Behöver du ändra dig kan du avboka enligt villkoren direkt i appen.

Screenshots

Caffeine Tracker4 screens
STHLM Sauna4 screens

Verdict

The call

The clearest difference is in-app purchases: STHLM Sauna 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. STHLM Sauna asks for nothing beyond the download.

UpkeepUpdate frequency

Caffeine Tracker ships an update weekly, STHLM Sauna every 2 weeks. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.

Scorecard1 real difference · 5 level
Caffeine Tracker versus STHLM Sauna: the parameters behind the verdict, then further details
ParameterCaffeine TrackerSTHLM Sauna
PriceFreeFree
Update frequencyWeekly — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad — betteriPhone
Requires iOS16.416.0 — better
Further details — not scored
Size79 MB50 MB
Age rating4+4+
DeveloperEMIR YAVCINStockholm Sauna AB

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
None

STHLM Sauna

No in-app purchases

Questions

Is Caffeine Tracker free?
Caffeine Tracker is free to download, with in-app purchases available.
Is STHLM Sauna free?
STHLM Sauna is free to download, with no in-app purchases.
Do Caffeine Tracker or STHLM Sauna have ads?
Neither Caffeine Tracker nor STHLM Sauna shows ads.
Which is updated more often, Caffeine Tracker or STHLM Sauna?
Caffeine Tracker ships an update weekly, and STHLM Sauna every 2 weeks. Most recently, Caffeine Tracker was updated on October 16, 2026 and STHLM Sauna on October 6, 2026.

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