Comparison

Alien Invader Escape vs Zetta Force 7

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

Head to head
About

Alien Invader Escape

Features
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A fun and exciting 8bit retro game that can exercise your mind and judgment and improve your agility thinking. The gameplay is very simple, use the joystick on the screen to control the alien action and avoid the bullets that are constantly attacking. There are 10 sets of the highest scores of local save, you can also submit your highest score to view your world rankings.

About

Zetta Force 7

Features
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Zetta Force 7 Annihilation awaits the weak in this retro arcade space shooter. You pilot that last hope of a dying galaxy, the Deuterium Space Fighter. Can you save your Galaxy in this, the last of the great Galaxy Wars. Your mighty star ship is heavily armed with the latest experimental weapons and capable of taking an immense pounding from the countless galactic invaders. In fact that's statement is not entirely true, our intelligence estimates the number of enemy forces and organic energy emitters to be 7 Zetta. ( 7 sextillion, 7000000000000000000000, 7 * 10 to power of 21.) You get the picture, that's a lot of invaders! Luckily you have the most powerful fleet of space destroyers in the galaxy at your command. Your ships are capable of taking vast damage, and you have the best weapons in the known universe. Your ship can recharge shields, change weapons mid battle, shoot in several directions at once and collect additional space armour. Will it be enough, download Zetta Force 7 now to find out.

Screenshots

Alien Invader Escape3 screens
Zetta Force 74 screens

Verdict

The call

The clearest difference is iOS requirement: Zetta Force 7 at 13.0 against Alien Invader Escape's 15.6. On price, update cadence, ads and in-app purchases 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

Alien Invader Escape ships an update every 18 months, Zetta Force 7 every 27 months. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

Scorecard1 real difference ยท 5 level
Alien Invader Escape versus Zetta Force 7: the parameters behind the verdict, then further details
ParameterAlien Invader EscapeZetta Force 7
PriceFreeFree
Update frequencyEvery 18 months โ€” betterEvery 27 months
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 โ€” better
Further details โ€” not scored
Size14 MB136 MB
Age rating4+9+
DeveloperTang Cho manGalatic Droids

In-app purchases

None

Alien Invader Escape

No in-app purchases

None

Zetta Force 7

No in-app purchases

Questions

Is Alien Invader Escape free?
Alien Invader Escape is free to download, with no in-app purchases.
Is Zetta Force 7 free?
Zetta Force 7 is free to download, with no in-app purchases.
Do Alien Invader Escape or Zetta Force 7 have ads?
Both Alien Invader Escape and Zetta Force 7 show ads.
Which is updated more often, Alien Invader Escape or Zetta Force 7?
Alien Invader Escape ships an update every 18 months, and Zetta Force 7 every 27 months. Most recently, Alien Invader Escape was updated on October 12, 2026 and Zetta Force 7 on October 16, 2026.

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