Space Cadet Defender vs Galaxy Invaders 2
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Space Cadet Defender
Defend Earth from alien invaders in this fast-paced arcade shooter. Progress through 50 unique levels, upgrade your ship with powerful enhancements, and face off against challenging boss battles. Compete with friends by viewing local and world high scores.
- Fast-paced arcade gameplay
- 50 unique levels
- Ship upgrades
- Boss battles
- Unique power-ups
- Score viewing
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FEATURES: - Fast paced, exciting invaders style arcade game. - 50 Unique levels, can you pass them all? - Enhance your ship with powerful upgrades. - Boss levels with powerful Alien Overlords. - Unique powerups. - View friends scores, both local and world. - Save and restore in-progress games. These are troubling times. Earth’s very existence is threatened. Alien invaders from outer space have been sent to destroy our planet. You have been called up to repel their attack. You must plan your battle strategy well and upgrade your fighter ship as the fight progresses to defeat the increasingly advanced alien space craft. Beware, their powerful overlords are watching and will join the fight to help the alien forces destroy us. We’re counting on you. Earth is counting on you. You can do it, you are a Space Cadet!
Galaxy Invaders 2
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The Galaxy's future is now in your hands. Take control of the spaceship and protect Earth from the galaxy invaders. In this Shoot ‘Em up game, you will be facing an increasingly large number of enemies in hazardous environments, and deal with many striker bosses in galaxy. As the game progresses, you will also earn gems to get more powerful spaceships. If you are a big fan of arcade shooting game like galaga, galaxia, galaxian, and galactica with the new modern combat, and want to bring the freedom in the galaxy games, so Galaxy Invaders 2 is perfect game for you. [HOW TO PLAY] - Touch and move to control your spaceship dodge enemy's bullets and attack the enemies. - Collect power-up items to upgrade or change your weapons. - Earn gems to get more powerful spaceships to fight with giant enemies and alien invaders. Get your ship ready in this arcade galaxy invader shooter game!
Screenshots
Verdict
The clearest difference is in-app purchases: Galaxy Invaders 2 at none against Space Cadet Defender's 8. Space Cadet Defender's advantage is ads (none vs shown) and update cadence (every 2 months vs every 32 months). On price 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
Both are free to download. Space Cadet Defender sells 8 one-off in-app purchases. Galaxy Invaders 2 asks for nothing beyond the download.
Space Cadet Defender ships an update every 2 months, Galaxy Invaders 2 every 32 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.
| Parameter | Space Cadet Defender | Galaxy Invaders 2 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (22 ratings) — better | — |
| Positive reviews | 74.6% of reviews | — |
| Number of ratings | 22 — better | — |
| Update frequency | Every 2 months — better | Every 32 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 3.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 5 MB | 135 MB |
| Age rating | 4+ | 4+ |
| Developer | SixHourSoft LLC | Taiwei Chiu |
In-app purchases
Space Cadet Defender
- Level Pack 1$0.99
- Cannon Upgrade$0.99
- Artillery Upgrade$0.99
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- Shield Upgrade$0.99
- Nuke Power Upgrade$0.99
- Engine Speed Upgrade$0.99
- Nuke Pack of 20$0.99
- Extra Life$0.99
Galaxy Invaders 2
No in-app purchases
Questions
Is Space Cadet Defender free?
Is Galaxy Invaders 2 free?
Do Space Cadet Defender or Galaxy Invaders 2 have ads?
Which is updated more often, Space Cadet Defender or Galaxy Invaders 2?
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