Comparison

TimeDilationX vs iRelativity

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

Head to head
About

TimeDilationX

Calculate time dilation based on Einstein's theories of Special and General Relativity. Compare time differences at various locations and track cumulative dilation over time.

Highlights
  • Special Relativity calculations
  • General Relativity calculations
  • GPS location integration
  • Comparison at different locations
  • Cumulative time dilation tracking
  • Elapsed time from installation
Features
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TimeDilationX app is calculating time dilation according to Einstein's Theory of Special Relativity, and General relativity equations depend on your GPS location. Compared the time dilation three different locations such as equator, north and south pole. And elapsed time is starting from installation app time and also cumulative time dilation as 10 years has been calculated and shown.

About

iRelativity

Features
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Every time you move, time passes slightly slower for you than for someone standing still. That's not science fiction — it's special relativity, and it's happening to you right now. iRelativity uses your real GPS speed to calculate exactly how much time dilation you're experiencing. Every trip, every commute, every flight adds a tiny slice of time to your lifetime total. The faster you travel, the more you save. Features • Live time dilation — your phone's GPS feeds real velocity into the Lorentz equation in real time • Lifetime total — watch your accumulated time saved grow across every journey, displayed in the most readable unit from femtoseconds up to seconds • Daily history — a chart of how much time you've saved each day • Global leaderboard — compare your lifetime total with other travellers via Game Center • What-if simulator — drag a slider toward the speed of light and see what time dilation would feel like at 0.9 c • Learn tab — interactive animations of the light clock and Einstein's train thought experiment, with a Lorentz factor calculator The numbers are real. At highway speeds you save about a nanosecond per hour. Board a plane and that climbs to microseconds. The physics is identical to the corrections that keep GPS satellites accurate every day.

Screenshots

TimeDilationX3 screens
iRelativity4 screens

Verdict

The call

The clearest difference is iOS requirement: TimeDilationX at 8.0 against iRelativity's 18.6. On price, ads, in-app purchases and device support 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.

Scorecard1 real difference · 7 level
TimeDilationX versus iRelativity: the parameters behind the verdict, then further details
ParameterTimeDilationXiRelativity
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS8.0 — better18.6
Further details — not scored
Size29 MB1 MB
Age rating4+4+
Developerharun tayfun soylemezVladimir Kostadinov Stoyanov

In-app purchases

None

TimeDilationX

No in-app purchases

None

iRelativity

No in-app purchases

Questions

Is TimeDilationX free?
TimeDilationX is free to download, with no in-app purchases.
Is iRelativity free?
iRelativity is free to download, with no in-app purchases.
Do TimeDilationX or iRelativity have ads?
Neither TimeDilationX nor iRelativity shows ads.

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