Comparison

Ops Clock vs Minimum Clock

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

Head to head
About

Ops Clock

A versatile utility app offering a world clock with over 400 cities, unlimited timers, and three powerful calculators for time zone, time, and date arithmetic. It also features an event log to track real-time occurrences and elapsed times.

Highlights
  • World clock with 400+ cities
  • Unlimited count-up and countdown timers
  • Time zone, time, and date calculators
  • Event log with elapsed time tracking
  • Customizable labels and notifications
Features
Read full description

Professional grade clock and timer tool with four functions in one app: • World clock • Digital seconds display • Compact format • Over 400 cities • Set custom labels • Clocks sorted automatically • Unlimited number of timers • Count-up timers • Countdown timers • Wall clock timers • End-time notifications • Pre-notifications • Elapsed time and ETA in any zone • Three calculators • Time zone calculator helps plan multi-city conf calls • Time calculator for time arithmetic, including across different time zones • Date calculator for date arithmetic • Event Log • Stores a record of real-time events • Shows elapsed time between events This app is free, shows no advertisements, makes no use of the network and collects no personal information. Available in English, Spanish, French, Italian and Portuguese.

About

Minimum Clock

This app offers a minimalist digital and analog clock with customizable features. Adjust size, switch between 12/24 hour formats, and select background colors. It includes a time signal with numerous tones and allows for date format changes.

Highlights
  • Digital and analog clock display
  • Adjustable clock size
  • 12/24 hour format switching
  • Customizable background colors
  • Hourly time signal with 78 tones
  • Date format customization
  • Screen rotation
Features
Read full description

A simple, no-frills digital and analog clock. The calm design is ideal for concentrating on study or work! Although simple, it has the minimum necessary functions. The clock face and analog clock can be moved with your finger. By pressing buttons such as "1X" and "2X", you can adjust the size of the letters. The analog clock can also be enlarged or reduced with two fingers. You can also switch between 12-hour and 24-hour displays. Touching a clock character or the analog clock switches to the setting mode. In setting mode, the date can be changed to various formats by touching it. In addition, a time signal can be sounded at 0 minutes of every hour, and there are 78 different tones to choose from. The screen can be rotated horizontally and vertically.  The background color can be selected from 10 different colors. It is also possible to choose between a digital clock and an analog clock.

Screenshots

Ops Clock4 screens
Minimum Clock4 screens

Verdict

The call

The clearest difference is review sentiment: Ops Clock at 100% against Minimum Clock's 0%. Ops Clock also leads on in-app purchases (none vs 1) and ads (none vs shown). Minimum Clock's advantage is update cadence (every 3 weeks vs every 5 months) and iOS requirement (12.0 vs 15.0). On price 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. Minimum Clock sells 1 one-off in-app purchase. Ops Clock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ops Clock holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 11 and 3 respectively. Written reviews point the same way: 100% of Ops Clock's written reviews are positive against 0% of Minimum Clock's.

UpkeepUpdate frequency

Ops Clock ships an update every 5 months, Minimum Clock every 3 weeks. The most recent releases landed on September 28, 2026 and September 19, 2026 respectively.

Scorecard8 real differences · 2 level
Ops Clock versus Minimum Clock: the parameters behind the verdict, then further details
ParameterOps ClockMinimum Clock
PriceFreeFree
Rating4.7 (11 ratings) — better4.3 (3 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings11 — better3
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size2 MB15 MB
Age rating4+4+
DeveloperJames KretchmarMihoko Araki

Customer experience

Ops Clock

All ratings11 ratings
Positive90.9%
Neutral0.0%
Negative9.1%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Minimum Clock

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Ops Clock

No in-app purchases

1 purchases

Minimum Clock

One-time1
  • Minimum Clock with no ads$1.99

Questions

Is Ops Clock free?
Ops Clock is free to download, with no in-app purchases.
Is Minimum Clock free?
Minimum Clock is free to download, with in-app purchases available.
Which has better reviews, Ops Clock or Minimum Clock?
Ops Clock is rated higher. Ops Clock averages 4.7 out of 5 from 11 ratings, while Minimum Clock averages 4.3 from 3 ratings.
Do Ops Clock or Minimum Clock have ads?
Minimum Clock shows ads; Ops Clock does not.
Which is updated more often, Ops Clock or Minimum Clock?
Ops Clock ships an update every 5 months, and Minimum Clock every 3 weeks. Most recently, Ops Clock was updated on September 28, 2026 and Minimum Clock on September 19, 2026.

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