Comparison

Samsa vs Earth Rotation

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

Head to head
About

Samsa

Features
Read full description

Dějiny Prahy jsou spjaté i s jejím německým obyvatelstvem a jeho kulturou. SAMSA tě zavede na místa, jež nesou stopu této „německé Prahy“ – jsou spojená s činností německy mluvících architektů, výtvarných umělců, literátů, hudebníků, spolků, škol a dalších institucí. U každého místa appka nabízí německý text se základním popisem, informacemi k jeho dějinám a roli v kulturním životě, a několik současných i historických fotografií. Výklad stojí na ověřených zdrojích, ale nezahltí tě. Objevuj s mobilem v ruce pozapomenutou součást dějin města! Aplikace vznikla v rámci společného projektu Shromáždění německých spolků v ČR a studentů i učitelů germanistiky na Filozofické fakultě Univerzity Karlovy. Počet hesel bude průběžně rozšiřován.

About

Earth Rotation

Explore a 3D simulation of celestial bodies. Adjust rotation speeds, reverse direction, and alter lighting angles. Choose from three distinct Earth visual styles for an interactive learning experience.

Highlights
  • Adjustable rotation speed
  • Reverse rotation direction
  • Adjustable sun lighting angle
  • Three Earth visual styles
  • 3D celestial animation
Features
Read full description

This is a 3D animation in which the sun, the earth, and the moon rotate. -You can change the rotation speed. The fastest is 1 second, and the slowest is 300 seconds to make one revolution. -It can rotate in the reverse direction, which is not possible in the natural world. -The earth and the moon can change the light from the sun by 30 degrees. -There are three types of earth: night lights, nature, and globes.

Screenshots

Samsa4 screens
Earth Rotation4 screens

Verdict

The call

The clearest difference is price: Samsa at Free against Earth Rotation's $0.99. Samsa also leads on iOS requirement (12.0 vs 15.0). On update cadence, 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

Samsa is free to download; Earth Rotation costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Samsa ships an update every 16 months, Earth Rotation every 22 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard2 real differences · 7 level
Samsa versus Earth Rotation: the parameters behind the verdict, then further details
ParameterSamsaEarth Rotation
PriceFree — better$0.99
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 16 months — betterEvery 22 months
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size28 MB46 MB
Age rating4+17+
DeveloperDactylGroupMasahiro Tomosada

In-app purchases

None

Samsa

No in-app purchases

None

Earth Rotation

No in-app purchases

Questions

Is Samsa free?
Samsa is free to download, with no in-app purchases.
Is Earth Rotation free?
Earth Rotation costs $0.99, with no in-app purchases.
Do Samsa or Earth Rotation have ads?
Neither Samsa nor Earth Rotation shows ads.
Which is updated more often, Samsa or Earth Rotation?
Samsa ships an update every 16 months, and Earth Rotation every 22 months. Most recently, Samsa was updated on November 7, 2026 and Earth Rotation on November 3, 2026.

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