Comparison

Tag vs Fasting Timer & Hydration Log

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

Head to head
About

Tag

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Tracking water in less than a second makes the habit stick โ€” and the easier it is to log, the more water youโ€™ll drink. tag is the fastest way to track water with just 1 tap open the app and tap on a quick amount and your done *water tracker requires subscription, features like quick amounts, hydration bar and hydration chart require a subscription in order access (All features demonstrated in the app preview and phone screenshots require a subscription to access.) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Fasting Timer & Hydration Log

Features
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An intermittent fasting timer that tells you exactly where you are: hours elapsed, hours left, and which metabolic stage your body just entered. Most fasting apps stop at a countdown. This one draws the whole fast on a stage timeline โ€” fed state at 0h, glycogen use at 4h, fat burning at 8h, ketosis at 12h, autophagy at 16h, deep ketosis at 24h โ€” so the number on screen finally means something. Underneath it sits a hydration log, because water is what makes the last four hours bearable, and a Learn library that answers the questions every beginner hits in week one. WHAT YOU GET - Know your fasting window at a glance: a live ring timer with hours elapsed, time remaining and the exact clock time your eating window opens - Follow your body, not just the clock โ€” a metabolic stage timeline that fills in as you pass 4h, 8h, 12h, 16h and 24h - Start in two taps with 16:8, 18:6, 20:4 or OMAD 23:1, and get a completion notification the moment you hit your goal - Hit your water target every day โ€” a 250 / 500 / 750 ml quick-add, a custom amount, an adjustable daily goal and a progress ring for today - See whether it is working: total fasts, average length, longest fast, a consecutive-day streak and a bar chart of your last ten fasts - Close each fast honestly โ€” rate how it felt and your energy level from 1 to 5, then browse the full history of every fast you finished PERFECT FOR - Beginners starting 16:8 who want to know what is happening inside the fast, not just when it ends - OMAD and 20:4 fasters chasing longer ketosis and autophagy windows - Anyone who keeps forgetting to drink water once meals disappear from the day - People who quit fasting before because the hours felt pointless and invisible WHY NOT JUST USE A KITCHEN TIMER? A timer tells you 6:42 is left. It cannot tell you that you crossed into fat burning two hours ago, when your eating window opens tomorrow, how long your streak is, or whether last week's fasts were actually longer than this week's. That context is the difference between counting down and building a habit. PRIVACY Everything stays on your iPhone. No account, no sign-up, no servers โ€” your fasts, water logs and notes are stored on the device and are never uploaded. FULL ACCESS This is a paid app: one plan unlocks everything โ€” all four fasting protocols, the live timer and stage timeline, unlimited history, insights and charts, the hydration log and the full Learn library. Choose weekly, yearly, or a one-time lifetime purchase. No ads at any tier. This app is a fasting timer and hydration log for general wellness, not medical advice. Talk to a doctor before fasting, especially if you are pregnant, diabetic or managing a health condition. Pick 16:8, tap Start, and watch your first stage light up tonight. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? tphuc.work@gmail.com

Screenshots

Tag4 screens
Fasting Timer & Hydration Log4 screens

Verdict

The call

The clearest difference is update cadence: Tag at every 5 days against Fasting Timer & Hydration Log's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Tag sells 8 in-app purchases, starting at $0.99 per month and Fasting Timer & Hydration Log sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Tag ships an update every 5 days, Fasting Timer & Hydration Log every 5 weeks. The most recent releases landed on October 9, 2026 and October 18, 2026 respectively.

Scorecard1 real difference ยท 5 level
Tag versus Fasting Timer & Hydration Log: the parameters behind the verdict, then further details
ParameterTagFasting Timer & Hydration Log
PriceFreeFree
Update frequencyEvery 5 days โ€” betterEvery 5 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, Apple Watch โ€” betteriPhone
Requires iOS17.017.0
Further details โ€” not scored
Size25 MB5 MB
Age rating4+4+
DeveloperBread technologies incPhuc Pham

In-app purchases

8 purchases

Tag

Subscriptions8
  • tag monthly3 Days trial$0.991 Month
  • monthly subscription$0.991 Month
  • Weekly Access7 Days trial$1.997 Days
Show 5 more
  • monthly subscription3 Days trial$2.991 Month
  • 3 month subscription3 Days trial$2.993 Months
  • 3 month subscription3 Days trial$3.993 Months
  • yearly access3 Days trial$9.991 Year
  • Yearly Access$19.991 Year
3 purchases

Fasting Timer & Hydration Log

Subscriptions2
  • Ketosis Tracker Weekly$6.997 Days
  • Eating Window Yearly$34.991 Year
One-time1
  • Autophagy Access, One-Time$69.99

Questions

Is Tag free?
Tag is free to download, with in-app purchases available.
Is Fasting Timer & Hydration Log free?
Fasting Timer & Hydration Log is free to download, with in-app purchases available.
Do Tag or Fasting Timer & Hydration Log have ads?
Neither Tag nor Fasting Timer & Hydration Log shows ads.
Which is updated more often, Tag or Fasting Timer & Hydration Log?
Tag ships an update every 5 days, and Fasting Timer & Hydration Log every 5 weeks. Most recently, Tag was updated on October 9, 2026 and Fasting Timer & Hydration Log on October 18, 2026.

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