RelativityTheory vs Time Dilation Explorer Lab
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
RelativityTheory
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Introducing and explaining the mysterious phenomenon derived from the theory of relativity. In particular, we will detail the changes in the way time progresses. The interstellar flight screen shows how time progresses in response to rocket speed. Shows the difference in how time progresses between rockets and the earth in space travel. The GPS screen shows that gravity changes the way time progresses.
Time Dilation Explorer Lab
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Time Dilation Explorer Lab turns special relativity into an interactive space-science lab. Slide toward the speed of light and watch time change in real time. Compare Earth time with traveler time, explore the light-clock thought experiment, send a virtual ship toward nearby stars, and learn why Einstein's ideas matter in real science and technology. Designed for curious learners, students, teachers, and space fans, the app explains time dilation, length contraction, the twin paradox, light speed, GPS corrections, and near-light-speed travel through visual simulations and short lessons. Key features: - Interactive time dilation simulator with Earth and traveler clocks - Speed vs Time graph for comparing journeys across cosmic distances - Light Clock demo showing why moving clocks tick slower - Twin Paradox visualization with Earth twin and traveler twin timelines - Length Contraction lab for seeing fast-moving objects shrink along motion - Cosmic Journey mode with destinations from the Moon to Andromeda - Bite-sized relativity lessons with examples, takeaways, and fun facts - Quiz mode with categories, best scores, streaks, and hints - Progress dashboard with lesson completion, quiz progress, and badges - Daily relativity facts and achievement rewards The free version includes core simulations, starter lessons, quizzes, and selected destinations. A one-time Premium unlock removes ads and opens advanced lessons, full-speed controls, expanded quiz content, extra destinations, and additional interactive tools. Whether you are reviewing physics for school, introducing relativity in a classroom, or simply wondering what a near-light-speed journey would feel like, Time Dilation Explorer Lab helps make spacetime visible.
Screenshots
Verdict
The clearest difference is price: Time Dilation Explorer Lab at Free against RelativityTheory's $0.99. RelativityTheory's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Time Dilation Explorer Lab is free to download; RelativityTheory costs $0.99 up front. Time Dilation Explorer Lab sells 1 one-off in-app purchase. RelativityTheory asks for nothing beyond the download.
| Parameter | RelativityTheory | Time Dilation Explorer Lab |
|---|---|---|
| Price | $0.99 | Free โ better |
| Update frequency | Every 3 weeks | โ |
| Ads | No โ better | Yes |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 14.4 โ better | 26.2 |
| Further details โ not scored | ||
| Size | 6 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Takao Akatsu | ChatStick Company Limited |
In-app purchases
RelativityTheory
No in-app purchases
Time Dilation Explorer Lab
- Unlock All Features$2.99
Questions
Is RelativityTheory free?
Is Time Dilation Explorer Lab free?
Do RelativityTheory or Time Dilation Explorer Lab have ads?
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