Kepler Attack vs SpaceBlast
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Kepler Attack
Engage in a retro arcade space shooter experience on your iPhone and Apple Watch. Destroy waves of alien invaders with power-ups and intuitive controls. Enjoy fast-paced gameplay perfect for short bursts of fun.
- Space shooter gameplay
- Alien invasion waves
- Power-ups (Shield, Triple Shot, etc.)
- Apple Watch Crown controls
- iPhone swipe controls
- Retro arcade graphics
- Short burst gameplay
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Featured in Apple's "Great on watchOS 6" and "Our Favourite Apple Watch Apps" collections! #2 Casual Game in the US! Kepler Attack is an arcade game for your iPhone and Apple Watch. Fly through space and destroy waves of alien space invaders from Kepler-452b. “I’m just amazed that this is on my Watch.” - Tom, host of The Apple WatchCast Podcast - http://www.applewatchcast.com “I think this is actually my personal favorite new game now on the Apple Watch because of its really fast pacing which is perfect for these types of games.” - HotshotTek, 10 Awesome Apple Watch Games Apps of 2019 • Inspired by Gyruss, Galaga, Galaxian and Space Invaders! • Beautiful retro arcade graphics! • Fast paced alien attack waves with a variety of enemy space invaders! • Power-ups include Shield, Triple Shot, Rapid Fire and Smart Bomb! • Intuitive and simple controls using the Crown on the Watch! • Swipe to move on the iPhone! • Short burst gameplay is perfect for the Watch and iPhone! • Retro sound effects on the iPhone! • Play anywhere, anytime! • Includes Valentine's Day and Santa Christmas Holiday theme! • Runs at 60fps on the Watch! Relive the glory days of the arcade on your Apple Watch and iPhone. Thanks for playing Johnno & Pete
SpaceBlast
Engage in a thrilling arcade-style space shooter. Blast incoming asteroids and dodge dangerous magma balls to survive. Test your reflexes in this fast-paced action game.
- Fast-paced action gameplay
- Shoot down asteroids
- Dodge magma balls
- Arcade-style shooter
- High-score chasing
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SpaceBlast is a fast paced action game where you need to shoot down all the asteroids without getting hit. Be careful of the magma balls!
Screenshots
Verdict
The clearest difference is price: SpaceBlast at Free against Kepler Attack's $1.99. SpaceBlast also leads on review sentiment (100% vs 81%) and iOS requirement (12.0 vs 17.0). Kepler Attack's advantage is ads (none vs shown) and chart position (#41 vs unranked). On update cadence, 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
SpaceBlast is free to download; Kepler Attack costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Kepler Attack ships an update every 2 months, SpaceBlast every 3 weeks. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.
| Parameter | Kepler Attack | SpaceBlast |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.5 (942 ratings) — better | — |
| Positive reviews | 81.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 942 — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Best chart rank | #41 — better | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Red Sprite Studios | Salvatore Papia |
Customer experience
Kepler Attack
SpaceBlast
Bugs and requests
Kepler Attack
Reported bugs
5 issues- Game doesn't play complete rip off
- Just says on the watch version that it has to be installed on my iPhone for it to work. It's installed on my iPhone. Doesn't work.
- This seems like a good game but I don't see it on my watch.
- I have the first version watch Apple one, and it does not work on the watch,And has offered me a refund, I appreciate it.
- It won't download on my watch
Requested features
2 requests- Add a golden starship IF
- Please add upgrades so we can have bettr ships
SpaceBlast
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Kepler Attack
No in-app purchases
SpaceBlast
No in-app purchases
Questions
Is Kepler Attack free?
Is SpaceBlast free?
Do Kepler Attack or SpaceBlast have ads?
Which is updated more often, Kepler Attack or SpaceBlast?
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