Comparison

Metric Seconds vs BTC ePlug

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

Head to head
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.

About

BTC ePlug

Features
Read full description

ePlug smart socket, is the basic component of electrical control in home automation. It provides remote control, automatic schedule control, and timer control. Through the App, users can observe the electrical power and use of electrical energy on the socket, to do analysis, comparison, to reach energy-saving purpose.

Screenshots

Metric Seconds4 screens
BTC ePlug4 screens

Verdict

The call

The clearest difference is iOS requirement: BTC ePlug at 12.0 against Metric Seconds's 14.1. On price, update cadence, ads and in-app purchases 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.

UpkeepUpdate frequency

Metric Seconds ships an update every 7 months, BTC ePlug every 10 months. The most recent releases landed on June 1, 2026 and December 15, 2025 respectively.

Scorecard1 real difference · 9 level
Metric Seconds versus BTC ePlug: the parameters behind the verdict, then further details
ParameterMetric SecondsBTC ePlug
PriceFreeFree
Rating4.5 (15 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings15 — better—
Update frequencyEvery 7 months — betterEvery 10 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS14.112.0 — better
Further details — not scored
Size2 MB21 MB
Age rating4+4+
DeveloperTangozulu R&DBehavior Tech Computer Corp.

In-app purchases

None

Metric Seconds

No in-app purchases

None

BTC ePlug

No in-app purchases

Questions

Is Metric Seconds free?
Metric Seconds is free to download, with no in-app purchases.
Is BTC ePlug free?
BTC ePlug is free to download, with no in-app purchases.
Do Metric Seconds or BTC ePlug have ads?
Neither Metric Seconds nor BTC ePlug shows ads.
Which is updated more often, Metric Seconds or BTC ePlug?
Metric Seconds ships an update every 7 months, and BTC ePlug every 10 months. Most recently, Metric Seconds was updated on June 1, 2026 and BTC ePlug on December 15, 2025.

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