Comparison

Asteroid Factorizer Math 2 vs Zarsthor

Price, ratings, monetisation and update history for both games, side by side โ€” with what reviewers say about each.

Head to head
About

Asteroid Factorizer Math 2

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* Reduce and destroy asteroids headed our way * Each asteroid is associated with a number that has 2 or more factors * Missiles with specific payloads can be used to reduce/destroy the asteroid by factoring * Select from a variety of Campaigns, over 100. See the parameters of the campaign. Parameters of the Asteroids, Spaceships, Scoring, etc. * Select from different difficulty levels ..... to match you math skills eh? * Make use of the different kind of Missile types * Balance the use of the Missile Resources to obtain the highest score * Play advanced campaigns which have multiple ships * Proceed through different waves with increasing levels of difficulty as you keep destroying asteroids. Speed and number of asteroids increase * Use in game power-ups to help you out * Keeps track of statistics Total/Average/Highest for games Score across the campaigns and across the Levels within a campaign Happy Factorizing!

About

Zarsthor

Features
Read full description

Space invaders are terrorizing universe, can you become hero and save it? UFO, Aliens need your help, whole galaxy need it. This free game is Retro Arcade endless fun, various gameplay levels, various bosses, enemy, over 7 spaceships to unlock and a lot more, expect it, there is original story. Imagine you got a normal life, one day you want to change it, you are going in universe adventure, why would you do it? What can happen during that travel? Over time game will bring your answers to those questions, in-game hero made decision, to change his life, but why? Checkout original story. An arcade-machine in your pocket. Tap to test your reflex. Various gameplay levels (don't shoot to astronauts, collect something, protect, destroy meteor, and a lot more, 40+ levels) and various bosses to defeat . Open world map (with side and main missions), you decide which one you will take. Hardcore gameplay, this game is hard, it's true arcade, each second can change your life and make your ship piece of parts (there is also easy mode). Imagine tons of glow asteroids, it's just a start. Discover original galactica story in a strange universe. Discover Space Frontier No IAP And a lot more :-} This app is Free to download This is offline, not online game. Best time waster. Download me Twitter: https://twitter.com/DonislawDev Facebook: https://www.facebook.com/DonislawDev-432377923770925/ Wish to help with translate game to other languages? Contact me at: donislawdev@gmail.com Special Thanks to Adam Rucki (Shephard) for making most SFX in this game Special Thanks to Marek Majewski. Special Thanks to www.gamedeveloperstudio.comC:\Users\DonislawDev\AppData\Roaming\Mozilla\Firefox\Profiles\fk7vmmzi.default

Screenshots

Asteroid Factorizer Math 24 screens
Zarsthor3 screens

Verdict

The call

The clearest difference is update cadence: Asteroid Factorizer Math 2 at every 3 days against Zarsthor's every 12 months. On price, ads, in-app purchases and 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Asteroid Factorizer Math 2 ships an update every 3 days, Zarsthor every 12 months. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.

Scorecard1 real difference ยท 5 level
Asteroid Factorizer Math 2 versus Zarsthor: the parameters behind the verdict, then further details
ParameterAsteroid Factorizer Math 2Zarsthor
PriceFreeFree
Update frequencyEvery 3 days โ€” betterEvery 12 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS13.012.0 โ€” better
Further details โ€” not scored
Size198 MB48 MB
Age rating4+12+
DeveloperRalph DMelloDominik Babiarz

In-app purchases

None

Asteroid Factorizer Math 2

No in-app purchases

None

Zarsthor

No in-app purchases

Questions

Is Asteroid Factorizer Math 2 free?
Asteroid Factorizer Math 2 is free to download, with no in-app purchases.
Is Zarsthor free?
Zarsthor is free to download, with no in-app purchases.
Do Asteroid Factorizer Math 2 or Zarsthor have ads?
Neither Asteroid Factorizer Math 2 nor Zarsthor shows ads.
Which is updated more often, Asteroid Factorizer Math 2 or Zarsthor?
Asteroid Factorizer Math 2 ships an update every 3 days, and Zarsthor every 12 months. Most recently, Asteroid Factorizer Math 2 was updated on October 12, 2026 and Zarsthor on October 5, 2026.

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