Relativity Widget vs Gravitational Force
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.
Gravitational Force
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Gravity is not something we encounter every day and of which we are a part. Our Gravity Force calculator can help you to calculate the gravitational force expertly.
Screenshots
Verdict
Relativity Widget and Gravitational Force are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on June 21, 2026 and September 15, 2026 respectively.
| Parameter | Relativity Widget | Gravitational Force |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 months | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Eliott Morgensztern | STAGE CODING, Travnik |
In-app purchases
Relativity Widget
No in-app purchases
Gravitational Force
No in-app purchases
Questions
Is Relativity Widget free?
Is Gravitational Force free?
Do Relativity Widget or Gravitational Force have ads?
Which is updated more often, Relativity Widget or Gravitational Force?
Other comparisons
