Comparison

Hacker Clock vs Metric Seconds

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

Head to head
About

Hacker Clock

Transform your device into a unique clock displaying animated hexadecimal code. Watch green hexadecimal values flow across the screen, simulating complex data processing. Ideal for computer enthusiasts, hackers, and fans of futuristic aesthetics.

Highlights
  • Animated hexadecimal code display
  • Three color variants (green, red, blue)
  • Horizontal and vertical display modes
  • 12- and 24-hour format options
  • Unique clock for geeks and fans
Features
Read full description

Hacker Clock turns your iPhone into a truly unique clock displayed as animated hexadecimal code. The green hexadecimal values constantly move across the screen, making it look as if your phone is processing complex data. This application is perfect for computer geeks, hackers, and matrix fans. If you are using a binary clock, you can throw it away. Once you try this hexadecimal clock, you will never want to use any other. Summary: * A truly unique clock * Animated hexadecimal code * Three color variants: green, red, blue * Horizontal and vertical modes * 12- and 24-hour formats

About

Metric Seconds

This utility app simplifies time calculations by converting to and from metric units. It allows users to tell and measure time using seconds as the base unit, with multipliers like kilo, Mega, and Giga for larger durations. It offers a fun and practical way to approach time measurement, especially for scientific or engineering contexts.

Highlights
  • Convert time to and from metric units
  • Tell time in metric
  • Measure time in metric
  • Uses seconds as the base unit
  • Supports metric multipliers (kilo, Mega, Giga)
  • UTC-based time with no time zones
Features
Read full description

Sixty seconds per minute, sixty minutes per hour, 24 hours per day, seven days per week. When you’re trying to do math with time, it’s hard. Metric Seconds is easy. Use this app to convert time to and from metric, and to tell and measure time in metric. Metric seconds is time measured in seconds using the standard metric units that are easy. The zero point is midnight January 1, 1970, the "start of time" for UNIX and other computer systems. And there are no time zones in metric time, it's all UTC-based. In metric time, seconds are the base unit. Then the regular metric multipliers are used: kilo, Mega, Giga, etc. We can use “hecto” for 100 seconds to have something close to a minute. Kiloseconds, 1000 seconds, are about 16 minutes long so 3.6 ksec is an hour and 86.4 ksec is a day. Science fiction has used metric time. Some examples are Vernor Vinge’s books A Fire on the Deep and Deepness in the Sky and Charles Stross’s books Glasshouse, Accelerando, and Neptune’s Brood. Also Robert Forward and Iain M. Banks used metric time. We won't abandon minutes and hours anytime soon. We’re all used to them. We won't start saying things like “I’ll be right with you, give me a hectosec.” For doing math with time or doing scientific and engineering measurements, kiloseconds, Megaseconds, and Gigaseconds might just make a lot of sense. And trying something new is fun.

Screenshots

Hacker Clock2 screens
Metric Seconds4 screens

Verdict

The call

Hacker Clock and Metric Seconds both sit at 4.5 stars, but that hides the real split: 100% of Metric Seconds's written reviews are positive against 54% of Hacker Clock's. Metric Seconds also leads on monetization model (free vs paid) and update cadence (every 7 months vs every 15 months). Hacker Clock's advantage is iOS requirement (12.0 vs 14.1). On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Hacker Clock against 4.5 for Metric Seconds. Both are backed by a comparable volume of ratings — 41 and 15 respectively. Written reviews are what separate them: 54% of Hacker Clock's written reviews are positive against 100% of Metric Seconds's.

UpkeepUpdate frequency

Hacker Clock ships an update every 15 months, Metric Seconds every 7 months. The most recent releases landed on October 14, 2026 and September 30, 2026 respectively.

Scorecard4 real differences · 6 level
Hacker Clock versus Metric Seconds: the parameters behind the verdict, then further details
ParameterHacker ClockMetric Seconds
PriceFreeFree
Rating4.5 (41 ratings)4.5 (15 ratings)
Positive reviews53.8% of reviews100.0% of reviews — better
Number of ratings41 — better15
Update frequencyEvery 15 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better14.1
Further details — not scored
Size12 MB2 MB
Age rating4+4+
DeveloperLeszek SzaryTangozulu R&D

Customer experience

Hacker Clock

All ratings41 ratings
Positive82.9%
Neutral9.8%
Negative7.3%
Written reviews26 reviews
Positive53.8%
Neutral11.5%
Negative34.6%

Metric Seconds

All ratings15 ratings
Positive86.7%
Neutral0.0%
Negative13.3%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Hacker Clock

No in-app purchases

None

Metric Seconds

No in-app purchases

Questions

Is Hacker Clock free?
Hacker Clock is free to download, with no in-app purchases.
Is Metric Seconds free?
Metric Seconds is free to download, with no in-app purchases.
Which has better reviews, Hacker Clock or Metric Seconds?
Hacker Clock and Metric Seconds are both rated 4.5 out of 5 on the App Store, from 41 and 15 ratings respectively.
Do Hacker Clock or Metric Seconds have ads?
Neither Hacker Clock nor Metric Seconds shows ads.
Which is updated more often, Hacker Clock or Metric Seconds?
Hacker Clock ships an update every 15 months, and Metric Seconds every 7 months. Most recently, Hacker Clock was updated on October 14, 2026 and Metric Seconds on September 30, 2026.

Other comparisons