Hydre Reminder vs Shiftrest
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Hydre Reminder
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Smart water tracking with personalized goals, reminders, and Apple Health integration
Shiftrest
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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
Verdict
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
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.
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.
| Parameter | Hydre Reminder | Shiftrest |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 12 months | Every 2 weeks โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 18 | 16.0 โ better |
| Further details โ not scored | ||
| Size | 4 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | durali mete kanat | EMRE KEP |
In-app purchases
Hydre Reminder
No in-app purchases
Shiftrest
- Weekly3 Days trial$1.997 Days
- Monthly$3.991 Month
- Yearly$24.991 Year
Questions
Is Hydre Reminder free?
Is Shiftrest free?
Do Hydre Reminder or Shiftrest have ads?
Which is updated more often, Hydre Reminder or Shiftrest?
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