Metric Seconds vs BTC ePlug
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
BTC ePlug
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | Metric Seconds | BTC ePlug |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (15 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 15 — better | — |
| Update frequency | Every 7 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.1 | 12.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Tangozulu R&D | Behavior Tech Computer Corp. |
In-app purchases
Metric Seconds
No in-app purchases
BTC ePlug
No in-app purchases








