Comparison

Simple_Clock vs Shift Worker Calendar & Alarm

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

Head to head
About

Simple_Clock

A minimalist analog clock designed with a classic Apple iPad aesthetic. It offers the unique ability to integrate calendar events and reminders as clock hands for enhanced time management.

Highlights
  • Classic Apple iPad style analog clock
  • Optional calendar integration as clock needles
  • Optional reminders integration as clock needles
  • Minimalist design
Features
Read full description

Classic Apple iPad style clock. Feature • Add Calendar and Reminders as clock needles (optional) Support: vibecoder.company@gmail.com

About

Shift Worker Calendar & Alarm

This app helps shift workers manage their schedules, set reliable alarms that bypass silent mode, and track pay and bills. It offers features like automatic pattern detection for rotations, custom shift types, and financial calculations for earnings and expenses.

Highlights
  • Calendar with custom shift types and emoji
  • Auto-detects and fills repeating shift patterns
  • System alarms that bypass silent and DND modes
  • Pay calculator with overtime and tax withholding
  • Bills tracker with due dates and category sorting
  • Export shifts and bills to calendar or CSV
  • Home screen widget with alarm countdown
Features
Read full description

Shift Alarm is the all-in-one app for shift workers. Paint your rotation on a calendar, and the app detects your pattern and fills it forward for 2 years. Set alarms that fire like the built-in Clock app — through Silent Mode and Do Not Disturb — so you never oversleep a shift again. SHIFT CALENDAR - Paint shifts by tapping or dragging across days - Create custom shift types with names, colors, and emoji - Auto-detect repeating patterns (2-on-2-off, 4-on-4-off, any rotation) - Lock your pattern to auto-fill 2 years of shifts - Add per-day notes with visual indicators - Guided setup walks you through your first pattern SYSTEM ALARMS - Real system alarms powered by AlarmKit — not notifications - Sound through Silent Mode and Do Not Disturb - Fire even if the app is closed or your phone restarts - Multiple alarms per shift type with custom tones - One-time alarms for special dates - Live countdown to your next alarm PAY CALCULATOR - Enter your hourly rate and see weekly, monthly, and yearly earnings - Automatic overtime calculations with configurable thresholds - Federal and state tax withholding - Pre-tax and post-tax deductions (401k, insurance, etc.) - Week-by-week and month-by-month pay breakdowns - Compare actual hours worked to projected earnings BILLS TRACKER - Add bills with categories, amounts, and due dates - Search, filter by category, and sort by name, amount, or due date - Monthly summary comparing total bills to your net pay - Surplus or deficit calculation so you know where you stand - Weekly and monthly bill breakdowns EXPORT EVERYWHERE - Export shifts to Apple Calendar, Google Calendar (ICS), or CSV - Export bills to Apple Calendar or CSV with custom filters - Configurable date ranges for all exports SECURITY - Face ID / Touch ID lock for pay and bills - Financial data encrypted at rest - No tracking, no ads, no data collection WIDGET - Home screen widget with live countdown to your next alarm - Auto-advances to the next alarm without reopening the app - Small and medium sizes Built specifically for nurses, firefighters, police officers, factory workers, and anyone on a rotating schedule. Shift Alarm replaces your alarm clock, pay stub calculator, and bill tracker with one simple app. Privacy Policy: https://ryanblakemurray.github.io/shift-alarm-privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Simple_Clock2 screens
Shift Worker Calendar & Alarm4 screens

Verdict

The call

The clearest difference is ads: Shift Worker Calendar & Alarm at none against Simple_Clock's shown. Shift Worker Calendar & Alarm also leads on review sentiment (100% vs 71%) and monetization model (free vs free with in-app purchases). Simple_Clock's advantage is iOS requirement (17.0 vs 26.1). On price, update cadence, in-app purchases and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Simple_Clock sells 1 one-off in-app purchase and Shift Worker Calendar & Alarm sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Simple_Clock ships an update weekly, Shift Worker Calendar & Alarm every 5 days. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Simple_Clock versus Shift Worker Calendar & Alarm: the parameters behind the verdict, then further details
ParameterSimple_ClockShift Worker Calendar & Alarm
PriceFreeFree
Rating4.7 (146 ratings) — better—
Positive reviews70.6% of reviews100.0% of reviews — better
Number of ratings146 — better—
Update frequencyWeeklyEvery 5 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better26.1
Further details — not scored
Size91 MB35 MB
Age rating4+4+
DeveloperSeung-Un HamRyan Murray

Customer experience

Simple_Clock

All ratings145 ratings
Positive91.7%
Neutral2.1%
Negative6.2%
Written reviews17 reviews
Positive70.6%
Neutral0.0%
Negative29.4%

Shift Worker Calendar & Alarm

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Simple_Clock

One-time1
  • Remove Ads (Lifetime)$4.99
2 purchases

Shift Worker Calendar & Alarm

Subscriptions2
  • Monthly Subscription1 Month trial$0.991 Month
  • Yearly Subscription1 Month trial$9.991 Year

Questions

Is Simple_Clock free?
Simple_Clock is free to download, with in-app purchases available.
Is Shift Worker Calendar & Alarm free?
Shift Worker Calendar & Alarm is free to download, with in-app purchases available.
Do Simple_Clock or Shift Worker Calendar & Alarm have ads?
Simple_Clock shows ads; Shift Worker Calendar & Alarm does not.
Which is updated more often, Simple_Clock or Shift Worker Calendar & Alarm?
Simple_Clock ships an update weekly, and Shift Worker Calendar & Alarm every 5 days. Most recently, Simple_Clock was updated on October 24, 2026 and Shift Worker Calendar & Alarm on October 24, 2026.

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