Comparison

Approximationist World Clock vs Shift Work Calendar

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

Head to head
About

Approximationist World Clock

This app simplifies understanding global time zones with a focus on approximations rather than exact minutes. It helps users quickly see if a time is suitable for others worldwide, making coordination easier for remote teams, travelers, and families.

Highlights
  • Approximation-first time zone display
  • Compare multiple cities at a glance
  • Quick overlap spotting for availability
  • Human-friendly time descriptions
  • Time slider functionality
  • Export/import and share team info
Features
Read full description

Approximationist: The Friendly World Clock for Humans Approximationist is a world clock app for people who don’t want to do timezone gymnastics before coffee. It helps you quickly understand what time it is around the world, with a fun approximation-first approach that answers the only question that matters: “Is now a good time?” Now with time slider, export/import and share of the teams' info (as sets) Need to coordinate New York, London, and Tokyo? Approximationist lets you compare cities at a glance and translate your local time into theirs without melting your brain. What makes it different World clock, but chill: Track multiple cities and time zones in one clean view. Approximation that helps: See rough equivalents fast when exact minutes aren’t the point. Quick overlap spotting: Find windows when everyone is probably awake and responsive. Human-friendly timing: Think in “early morning,” “around lunch,” or “late evening,” not just raw offsets. Less math, more momentum: Spend less time converting, more time actually scheduling. Perfect for Remote teams spread across time zones Freelancers working with global clients Travelers planning across regions Friends and families who live far apart Anyone who has ever asked, “Wait… what time is it there again?” Approximationist keeps global time coordination simple, useful, and a little more fun. Because life is complicated enough without manually adding 9 hours in your head. Friendly disclaimer: Approximationist is made for quick, practical time estimates, not split-second precision. If you need exact precision, there are many beautiful apps on the App Store, please take a look at them. Introductory pricing note: Approximationist is currently available at a special launch price for early users.

About

Shift Work Calendar

Features
Read full description

Plera – Shift Work Calendar, Schedule Planner & Time Tracking App Plera is a powerful shift work calendar designed to help you plan shifts, manage your work schedule, track work hours, and monitor earnings in one place. Whether you work rotating shifts, night shifts, on-call schedules, or flexible hours, Plera gives you full control over your time and income. This shift planner and work schedule app is built for employees, staff, nurses, freelancers, and anyone who needs a simple and reliable way to organize shifts, track time, and calculate earnings. With an intuitive calendar interface and fast editing tools, you can create, update, and manage your schedule in seconds. Plera combines shift planning, timesheet tracking, and earnings monitoring into a single, easy-to-use app. It helps you stay organized, reduce scheduling mistakes, and always know your hours worked and income earned. KEY FEATURES Shift Work Calendar Plan and manage your shift schedule with a clean and simple calendar. View all your shifts, days off, and work patterns in one place. Shift Planner & Schedule Management Create and edit shifts quickly. Customize your work schedule with flexible settings, including repeating shifts, rotation patterns, and on-call shifts. Work Hours Tracking Track your work hours accurately. Monitor daily, weekly, and monthly hours to stay in control of your time. Timesheet & Work Log Keep a detailed timesheet and work log. Record your shifts and hours for better tracking and reporting. Earnings & Pay Tracking Track your earnings, wages, salary, and paycheck estimates. Understand how much you earn based on your work hours and shifts. Insights & Statistics Get clear insights into your work schedule, hours, and earnings. Analyze your workload and income trends over time. Flexible Shift Patterns Support for rotating shifts, on-call schedules, part-time work, and custom work patterns. Built for Shift Workers Ideal for nurses, employees, staff, contractors, and anyone working non-standard schedules. Fast and Easy to Use Add or edit shifts in seconds with a simple and intuitive interface designed for everyday use. Multi-Language Support Use the app in your preferred language and manage your schedule anywhere. Plera is more than a simple calendar. It is a complete shift planner, work hours tracker, timesheet manager, and earnings tracker designed to simplify your work life and give you clarity over your schedule and income. Download Plera and take control of your shift work schedule today. Privacy Policy https://aqeno.com/privacy-plera Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Approximationist World Clock4 screens
Shift Work Calendar4 screens

Verdict

The call

The clearest difference is price: Shift Work Calendar at Free against Approximationist World Clock's $0.99. Approximationist World Clock's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement 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

Shift Work Calendar is free to download; Approximationist World Clock costs $0.99 up front. Shift Work Calendar sells 2 in-app purchases, starting at $2.99 per month. Approximationist World Clock asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Approximationist World Clock versus Shift Work Calendar: the parameters behind the verdict, then further details
ParameterApproximationist World ClockShift Work Calendar
Price$0.99Free — better
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size2 MB14 MB
Age rating4+4+
DeveloperSimply Useful AppsVladyslav Dmytriiev

In-app purchases

None

Approximationist World Clock

No in-app purchases

2 purchases

Shift Work Calendar

Subscriptions2
  • Plera Premium$2.991 Month
  • Plera Premium (Yearly)7 Days trial$19.991 Year

Questions

Is Approximationist World Clock free?
Approximationist World Clock costs $0.99, with no in-app purchases.
Is Shift Work Calendar free?
Shift Work Calendar is free to download, with in-app purchases available.
Do Approximationist World Clock or Shift Work Calendar have ads?
Neither Approximationist World Clock nor Shift Work Calendar shows ads.

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