Comparison

Shift Calendar Alarm vs ShiftAlarm

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

Head to head
About

Shift Calendar Alarm

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If your shifts move around from week to week, you probably spend more time than you'd like resetting alarms and double-checking them before an early start. Shift Calendar Alarm takes care of that. Put your shifts on the calendar, and the app sets your iPhone alarms for the next 60 days, then updates them on its own whenever your schedule changes. Start by saving the shifts you work most, like early, late, night, or on-call, as Shift Types. Each one can have up to three alarms, on the day itself or the evening before, which helps when a very early start means you want a heads-up the night before. Then tap dates on the calendar to schedule them, with more than one shift on the same day if that's how your week looks. Even if your schedule is never quite the same, there's often a stretch that repeats, and Patterns save you from tapping it in again and again. Line up those shifts in order, say two early days, two nights, and two days off, pick a start date, and the whole stretch lands on your calendar at once. Your first pattern is free. Tap any date to see that day's shifts, alarms, and notes together, and a small dot on the calendar tells you which days have notes. A note can stay with its Shift Type or be rewritten for a single day. If you don't need one particular alarm, say on a day you've swapped with a coworker, you can skip just that one without changing the shift itself. Scheduled Alarms shows everything that's about to ring, and Alarm Health checks permissions and sync status and points out anything that needs attention. You only need to rebuild alarms by hand if sync runs into a problem. The Home Screen widget keeps today's and tomorrow's shifts and alarms in view, and a 9:30 p.m. reminder tells you what tomorrow looks like before you go to bed. You'll also find Silent Alarm Mode, calendar images you can share with family or coworkers, iCloud sync, language settings, and Light and Dark Mode. The free version includes 3 Shift Types, 1 pattern, and 8 scheduled shifts. Premium removes those limits. Shift Calendar Alarm is made for keeping track of your own shifts and alarms. It isn't a team scheduling, payroll, or HR tool. Highlights: - Calendar-based shift planning - Multiple shifts on the same day - Date details and notes - One-time alarm skips - Up to three same-day or previous-day alarms per Shift Type - Automatic sync of native iPhone alarms for the next 60 days - Scheduled Alarms, manual rebuild, and Alarm Health - Home Screen widget for today’s and tomorrow’s shifts and alarms - 9:30 p.m. reminder with tomorrow’s schedule - Silent Alarm Mode, calendar image sharing, and iCloud sync - Multi-day Patterns, with your first pattern free - Free: 3 Shift Types, 1 pattern, and 8 scheduled shifts, with Premium unlimited Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ShiftAlarm

Features
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Import an Excel/CSV roster or build a repeating work/off pattern, then keep shifts, reminders, and hours organized in one place. ShiftAlarm is a shift calendar and alarm app for rotating schedules, night work, duty shifts, and overtime. See what you work today, know when to leave, and keep your whole month organized in one place. KEY FEATURES Schedule assistant (Pro) Check your schedule, log overtime or change shifts in one sentence, typed or spoken. Every change waits for your confirmation and can be undone. You can also ask Siri what you work tomorrow. Alarm check See how every reminder in the next 48 hours will sound, and turn ordinary notifications into alarms with one tap. Schedule analysis Spot where your roster cuts into sleep, such as short breaks between shifts, runs of night shifts or too many days in a row, with suggestions. Today's shift and countdown See today's shift, start and end times, time until work or clock-out, and your next reminder. Shift calendar View morning, evening, night, off, and duty shifts directly on a monthly calendar. Cycle scheduling Create repeating patterns such as two days on and two days off. Preview and generate up to 365 days while choosing whether to replace or keep existing shifts. Excel and CSV import Preview and validate your existing roster before saving it. Matching shift times can be synchronized, while duplicate dates can be replaced or kept. Shift library Create, edit, and duplicate reusable shift templates for different work patterns. Overtime and work-hour statistics Record overtime or temporary duty and review regular hours, overtime, total hours, workdays, and shift distribution. Shift reminders Set wake-up, departure, and work reminders for each shift and choose a reminder sound. Home Screen widgets Check today's shift, countdown, next reminder, and weekly roster without opening the app. Holidays and languages Choose built-in holidays for Mainland China or Hong Kong, or turn them off. ShiftAlarm supports Simplified Chinese, Traditional Chinese, and English. Built for healthcare, security, manufacturing, rail, aviation, emergency services, and anyone working rotating schedules. No account is required. Your schedules and reminders stay on your device, and imported roster files are not uploaded to a server.

Screenshots

Shift Calendar Alarm4 screens
ShiftAlarm4 screens

Verdict

The call

The clearest difference is in-app purchases: ShiftAlarm at none against Shift Calendar Alarm's 2. ShiftAlarm also leads on iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support 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. Shift Calendar Alarm sells 2 in-app purchases, starting at $0.99 per month. ShiftAlarm asks for nothing beyond the download.

UpkeepUpdate frequency

Shift Calendar Alarm ships an update every 2 weeks, ShiftAlarm weekly. The most recent releases landed on September 27, 2026 and October 15, 2026 respectively.

Scorecard2 real differences Β· 4 level
Shift Calendar Alarm versus ShiftAlarm: the parameters behind the verdict, then further details
ParameterShift Calendar AlarmShiftAlarm
PriceFreeFree
Update frequencyEvery 2 weeksWeekly β€” better
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhoneiPhone, iPad β€” better
Requires iOS26.017.0 β€” better
Further details β€” not scored
Size6 MB20 MB
Age rating4+4+
DeveloperPING CHANG YU明 刘

In-app purchases

2 purchases

Shift Calendar Alarm

Subscriptions2
  • Shift Alarm Premium Monthly$0.991 Month
  • Shift Alarm Premium Yearly$8.991 Year
None

ShiftAlarm

No in-app purchases

Questions

Is Shift Calendar Alarm free?
Shift Calendar Alarm is free to download, with in-app purchases available.
Is ShiftAlarm free?
ShiftAlarm is free to download, with no in-app purchases.
Do Shift Calendar Alarm or ShiftAlarm have ads?
Neither Shift Calendar Alarm nor ShiftAlarm shows ads.
Which is updated more often, Shift Calendar Alarm or ShiftAlarm?
Shift Calendar Alarm ships an update every 2 weeks, and ShiftAlarm weekly. Most recently, Shift Calendar Alarm was updated on September 27, 2026 and ShiftAlarm on October 15, 2026.

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