Relativity Widget vs MultiClock Civil/Solar/Metric
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Relativity Widget
Visualize Einstein's theories of relativity directly on your home screen. Choose between Special Relativity to see time dilation in a spaceship or General Relativity to observe time differences near a black hole.
- Special Relativity visualization
- General Relativity visualization
- Time dilation display
- Home screen integration
- Customizable speed/distance settings
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Relativity Widget allows you to visualise Einstein's theories of relativity right on your home screen. Two modes : • Special Relativity: imagine that you are in a spaceship travelling at a chosen speed. If you travel fast enough, time will pass differently on earth... • General Relativity: you are on earth while a friend of yours went on a journey, in a spaceship, at a chosen distance to a Schwarzschild black hole. If you are close enough, time will pass differently in the spaceship... Relativity Widget clocks represent the difference in time flow, since midnight, between a high speed / high gravity experiencing reference frame and a low speed / gravity one, according to Einstein's theory of relativity.
MultiClock Civil/Solar/Metric
This utility app displays time in multiple formats, including civil, solar, and metric. It offers a progress bar for the day's elapsed percentage and shows sunrise/sunset times. A converter tool allows for easy time conversions between different systems.
- Civil time with DST
- Solar time based on sun position
- Metric time (10,000 units per day)
- Daily progress bar
- Sunrise and sunset times
- Time converter tool
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The clock shows two different times in several different ways. Civil time is the current time in your time zone, taking daylight saving rules into account. Solar time depends on the position of the sun in the sky. Solar noon is when the sun is at its highest point. That moment depends on where you are, and on where the Earth is in its annual orbit around the sun. The time display shows hours and minutes in the way you're used to. It also shows a metric time. It breaks the day into 10,000 equal-sized pieces and keeps count of them over the course of the day. Midnight is 0000, and 9999 is the instant just before the next midnight. It also shows a progress bar for the percent of day elapsed. The clock shows sunrise and sunset times for both civil and solar days, in the hour and minute display and in metric. There's a "classic" display page that shows just solar metric, civil metric and civil hh:mm time. There's a converter page that allows you to type in a time, civil or solar, hours:minutes or metric, and convert to all the other available time types.
Screenshots
Verdict
The clearest difference is rating: Relativity Widget at 5.0 against MultiClock Civil/Solar/Metric's 4.0. Relativity Widget also leads on iOS requirement (14.0 vs 16.0). MultiClock Civil/Solar/Metric's advantage is update cadence (every 3 weeks vs every 6 months) and ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model 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.
Relativity Widget holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Relativity Widget ships an update every 6 months, MultiClock Civil/Solar/Metric every 3 weeks. The most recent releases landed on October 4, 2026 and October 8, 2026 respectively.
| Parameter | Relativity Widget | MultiClock Civil/Solar/Metric |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.0 (3 ratings) |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 6 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Eliott Morgensztern | Michael Olson |
Customer experience
Relativity Widget
MultiClock Civil/Solar/Metric
In-app purchases
Relativity Widget
No in-app purchases
MultiClock Civil/Solar/Metric
No in-app purchases
Questions
Is Relativity Widget free?
Is MultiClock Civil/Solar/Metric free?
Which has better reviews, Relativity Widget or MultiClock Civil/Solar/Metric?
Do Relativity Widget or MultiClock Civil/Solar/Metric have ads?
Which is updated more often, Relativity Widget or MultiClock Civil/Solar/Metric?
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