# Kepler Attack vs Alien Breakout

The clearest difference is rating: Kepler Attack at 4.5 against Alien Breakout's 4.0. Kepler Attack also leads on review sentiment (81% vs 50%) and ratings volume (942 vs 2). Alien Breakout's advantage is update cadence (every 10 days vs every 6 weeks) and price ($0.99 vs $1.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Kepler Attack costs $1.99 and Alien Breakout $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Kepler Attack holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Kepler Attack has 942 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 81% of Kepler Attack's written reviews are positive against 50% of Alien Breakout's.

Kepler Attack ships an update every 6 weeks, Alien Breakout every 10 days. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Kepler Attack | Alien Breakout |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[4.5 (942 ratings)](https://appshunter.io/ios/app/kepler-attack-watch-game/id1441234645/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/alien-breakout/id1549205320/reviews) |
| Number of ratings | **942** | 2 |
| Positive reviews | **81.4% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 10 days** |
| Monetization | Paid | Paid |
| Best chart rank | **#38** | — |
| Size | 31 MB | 19 MB |
| Requires iOS | **12.1** | 18.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Red Sprite Studios](https://appshunter.io/developer/493770851) | [Virtual GS](https://appshunter.io/developer/302652687) |

## What reviewers say

### Kepler Attack

[App page](https://appshunter.io/ios/app/kepler-attack-watch-game/id1441234645)

**Currently charting:** #38 Top Paid · Casual, #85 Top Paid · Action (US App Store)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 😁 Great for apple watches
- 🎮 An actual video game
- 🎶 What's the music called?
- 📱 I love the fact that you can play this game on an Apple Watch
- ⏱️ Old School Arcade Immediacy and Brevity

**What reviewers complain about**

- 🙄 Not worth paying for
- 💰 Ain't worth the money really
- 🙄 Fun but basic
- 😒 Stupid forced reviews
- 🐛 Won't install

**Reported bugs**

- 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**

- Add a golden starship IF
- Please add upgrades so we can have bettr ships


### Alien Breakout

[App page](https://appshunter.io/ios/app/alien-breakout/id1549205320)

Defend against alien invaders by sliding your shield. This classic arcade experience offers a unique twist with aliens firing back. Play on your Apple Watch, iPhone, or iPad.

**Highlights:** Slide shield to battle aliens, Aliens fire back, Control with digital crown or touch, Toggle sound on/off, Retro mode available, Apple Watch, iPhone, and iPad support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Kepler Attack free?

Kepler Attack costs $1.99, with no in-app purchases.

### Is Alien Breakout free?

Alien Breakout costs $0.99, with no in-app purchases.

### Which has better reviews, Kepler Attack or Alien Breakout?

Kepler Attack is rated higher. Kepler Attack averages 4.5 out of 5 from 942 ratings, while Alien Breakout averages 4.0 from 2 ratings.

### Do Kepler Attack or Alien Breakout have ads?

Neither Kepler Attack nor Alien Breakout shows ads.

### Which is updated more often, Kepler Attack or Alien Breakout?

Kepler Attack ships an update every 6 weeks, and Alien Breakout every 10 days. Most recently, Kepler Attack was updated on September 25, 2026 and Alien Breakout on September 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*