Comparison

AnchorShift vs Shiftrest

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

Head to head
About

AnchorShift

Features
Read full description

The Reliable Teammate for Shift Workers. Shift work shouldn’t cost you your health. AnchorShift is the first intelligent scheduler designed to sync your sleep, energy, and life with your work rosterβ€”using the science of circadian rhythms. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://anchorshift.ca/privacy.html Whether you are a nurse, first responder, or industrial worker, switching between days and nights often leads to "Shift Drag"β€”that brain fog and exhaustion that ruins your days off. AnchorShift fixes this by calculating exactly when to sleep, use caffeine, and block light to flip your internal clock faster. KEY FEATURES: The Night Shift Algorithm Stop calculating sleep math in your head. Simply input your shifts, and AnchorShift generates a minute-by-minute biological plan. We tell you the optimal "Anchor Sleep" windows, when to blast bright light for alertness, and the exact moment to put on sunglasses to protect your recovery. Energy Analytics You can’t improve what you don’t measure. Log your daily energy levels (1-5) and visualize your performance trends over time. Our analytics engine detects patterns in your fatigueβ€”alerting you to "Post-Shift Crashes" before they happen so you can adjust your routine. Smart Calendar Sync Your life doesn't stop just because you work nights. Import your personal Google Calendar directly into the app. See your work roster alongside family events, doctor appointments, and social plans to identify conflicts instantly. Precision Notifications Get nudged at the exact right moments. β€’ "Caffeine Window Closing" (Protect your sleep) β€’ "Light Blast" (Boost alertness mid-shift) β€’ "Wind Down" (Prepare for recovery) WHY ANCHORSHIFT? Standard calendars just tell you where to be. AnchorShift tells you how to be your best self when you get there. We don't just track your sleep; we optimize it. SUBSCRIPTION PRICING AnchorShift offers a Pro subscription to unlock the full Nightshift Algorithm, advanced Analytics, unlimited tasks feature, and custom notification settings. Start your 7-day free trial today and feel the difference a synced rhythm makes. Note: AnchorShift provides schedule recommendations based on general circadian principles. It is not a medical device. Please consult a doctor for medical advice.

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

AnchorShift4 screens
Shiftrest4 screens

Verdict

The call

The clearest difference is ads: Shiftrest at none against AnchorShift's shown. AnchorShift's advantage is update cadence (every 5 days vs every 2 weeks) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. AnchorShift sells 2 in-app purchases, starting at $4.99 per month and Shiftrest sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

AnchorShift ships an update every 5 days, Shiftrest every 2 weeks. Both last shipped on October 28, 2026.

Scorecard3 real differences Β· 3 level
AnchorShift versus Shiftrest: the parameters behind the verdict, then further details
ParameterAnchorShiftShiftrest
PriceFreeFree
Update frequencyEvery 5 days β€” betterEvery 2 weeks
AdsYesNo β€” better
In-app purchasesYesYes
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.1 β€” better16.0
Further details β€” not scored
Size53 MB14 MB
Age rating17+4+
DeveloperJong Bin LeeEMRE KEP

In-app purchases

2 purchases

AnchorShift

Subscriptions2
  • Monthly Pro3 Days trial$4.991 Month
  • Annual Pro7 Days trial$29.991 Year
3 purchases

Shiftrest

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

Questions

Is AnchorShift free?
AnchorShift is free to download, with in-app purchases available.
Is Shiftrest free?
Shiftrest is free to download, with in-app purchases available.
Do AnchorShift or Shiftrest have ads?
AnchorShift shows ads; Shiftrest does not.
Which is updated more often, AnchorShift or Shiftrest?
AnchorShift ships an update every 5 days, and Shiftrest every 2 weeks. Most recently, AnchorShift was updated on October 28, 2026 and Shiftrest on October 28, 2026.

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