Comparison

Hydre Reminder vs Shiftrest

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

Head to head
About

Hydre Reminder

Features
Read full description

Smart water tracking with personalized goals, reminders, and Apple Health integration

About

Shiftrest

Features
Read full description

Sleep smarter, not longer. ShiftRest is built only for shift workers - nurses, paramedics, pilots, truckers, and anyone whose body fights their schedule. Most sleep apps assume a 9-to-5 life. ShiftRest doesn't. It uses your real shift roster and your personal chronotype to calculate the exact hours your body will rest best - even when you're working 7pm to 7am. HOW IT WORKS 1. Take a 60-second chronotype quiz 2. Connect your Calendar (or enter shifts manually) 3. ShiftRest tells you when to sleep, when to wake, and how rested you'll be BUILT FOR SHIFT WORK - Circadian Rhythm Engine - personalized sleep windows by chronotype, age, gender - Smart Shift Detection - auto-imports rosters from your calendar - Sleep Debt Tracker - see what you owe your body, track recovery - Shift Readiness Score - know if you're rested enough before clocking in - Sleep Sounds - white, pink, brown noise; rain, ocean, forest, fan - Wind-Down Reminders - smart notifications timed to your shift - Home Screen Widgets - next shift + sleep recommendation at a glance - Apple Health sync - sleep data flows seamlessly SHIFTREST PRO Calendar sync, full sound library, advanced widgets, and personalized insights. Weekly, monthly, and yearly plans. Cancel anytime. PRIVACY Your sleep data stays on your device. We don't sell, share, or upload it. Designed with input from sleep researchers. QUESTIONS? shiftrest.forvibe.app

Screenshots

Hydre Reminder4 screens
Shiftrest4 screens

Verdict

The call

The clearest difference is in-app purchases: Hydre Reminder at none against Shiftrest's 3. Shiftrest's advantage is update cadence (every 2 weeks vs every 12 months) and iOS requirement (16.0 vs 18). On price, ads 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. Shiftrest sells 3 in-app purchases, starting at $1.99 per 7 days. Hydre Reminder asks for nothing beyond the download.

UpkeepUpdate frequency

Hydre Reminder ships an update every 12 months, Shiftrest every 2 weeks. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

Scorecard3 real differences ยท 3 level
Hydre Reminder versus Shiftrest: the parameters behind the verdict, then further details
ParameterHydre ReminderShiftrest
PriceFreeFree
Update frequencyEvery 12 monthsEvery 2 weeks โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhoneiPhone
Requires iOS1816.0 โ€” better
Further details โ€” not scored
Size4 MB14 MB
Age rating4+4+
Developerdurali mete kanatEMRE KEP

In-app purchases

None

Hydre Reminder

No in-app purchases

3 purchases

Shiftrest

Subscriptions3
  • Weekly3 Days trial$1.997 Days
  • Monthly$3.991 Month
  • Yearly$24.991 Year

Questions

Is Hydre Reminder free?
Hydre Reminder is free to download, with no in-app purchases.
Is Shiftrest free?
Shiftrest is free to download, with in-app purchases available.
Do Hydre Reminder or Shiftrest have ads?
Neither Hydre Reminder nor Shiftrest shows ads.
Which is updated more often, Hydre Reminder or Shiftrest?
Hydre Reminder ships an update every 12 months, and Shiftrest every 2 weeks. Most recently, Hydre Reminder was updated on September 24, 2026 and Shiftrest on September 23, 2026.

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