Comparison

Approximationist World Clock vs osaring sizer

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

osaring sizer

Features
Read full description

Used for measuring ring size

Screenshots

Approximationist World Clock4 screens
osaring sizer4 screens

Verdict

The call

The clearest difference is price: osaring sizer at Free against Approximationist World Clock's $0.99. osaring sizer also leads on update cadence (every 4 days vs every 2 months) and iOS requirement (15 vs 17.0). On ads, 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

osaring sizer is free to download; Approximationist World Clock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Approximationist World Clock ships an update every 2 months, osaring sizer every 4 days. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 7 level
Approximationist World Clock versus osaring sizer: the parameters behind the verdict, then further details
ParameterApproximationist World Clockosaring sizer
Price$0.99Free — better
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015 — better
Further details — not scored
Size2 MB58 MB
Age rating4+4+
DeveloperSimply Useful AppsShenzhen Huoyan Intelligence Co.,Ltd

In-app purchases

None

Approximationist World Clock

No in-app purchases

None

osaring sizer

No in-app purchases

Questions

Is Approximationist World Clock free?
Approximationist World Clock costs $0.99, with no in-app purchases.
Is osaring sizer free?
osaring sizer is free to download, with no in-app purchases.
Do Approximationist World Clock or osaring sizer have ads?
Neither Approximationist World Clock nor osaring sizer shows ads.
Which is updated more often, Approximationist World Clock or osaring sizer?
Approximationist World Clock ships an update every 2 months, and osaring sizer every 4 days. Most recently, Approximationist World Clock was updated on October 6, 2026 and osaring sizer on October 1, 2026.

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