# Space ReInvaders vs Knock Fever

The clearest difference is in-app purchases: Space ReInvaders at none against Knock Fever's 14. Space ReInvaders also leads on ads (none vs shown). Knock Fever's advantage is iOS requirement (15.0 vs 26.3). On price and device support there is nothing between them.

Both are free to download. Knock Fever sells 14 one-off in-app purchases. Space ReInvaders asks for nothing beyond the download.

## The numbers

| Metric | Space ReInvaders | Knock Fever |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (11K ratings)](https://appshunter.io/ios/app/knock-fever/id6786195352/reviews)** |
| Number of ratings | — | **11K** |
| Positive reviews | — | 53.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 607 MB |
| Requires iOS | 26.3 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Piero Amato](https://appshunter.io/developer/449186899) | [Kite Games](https://appshunter.io/developer/1878111512) |

## What reviewers say

### Space ReInvaders

[App page](https://appshunter.io/ios/app/space-reinvaders/id6765744750)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Knock Fever

[App page](https://appshunter.io/ios/app/knock-fever/id6786195352)

Aim your cannon precisely to blast down colorful towers in this physics-based destruction game. Enjoy hundreds of satisfying levels with simple controls and spectacular chain reactions. Become the ultimate cannon champion by strategically knocking down every structure.

**Highlights:** Physics-based destruction, Hundreds of unique levels, Satisfying chain reactions, Simple aim and shoot controls, Colorful tower smashing, Rewarding challenges

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Bundle | $1.99 | one-time |
| 1000 Coins Pack | $1.99 | one-time |
| Mini Bundle | $4.99 | one-time |
| No Ads | $7.99 | one-time |
| 5000 Coins Pack | $7.99 | one-time |
| Season Pass | $9.99 | one-time |
| Premium Bundle | $9.99 | one-time |
| 10000 Coins Pack | $14.99 | one-time |
| Deluxe Bundle | $19.99 | one-time |
| 25000 Coins Pack | $29.99 | one-time |
| Mega Bundle | $49.99 | one-time |
| 50000 Coins Pack | $54.99 | one-time |
| Ultimate Bundle | $99.99 | one-time |
| 100000 coins pack | $99.99 | one-time |


## Frequently asked questions

### Is Space ReInvaders free?

Space ReInvaders is free to download, with no in-app purchases.

### Is Knock Fever free?

Knock Fever is free to download, with in-app purchases available.

### Do Space ReInvaders or Knock Fever have ads?

Knock Fever shows ads; Space ReInvaders does not.

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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.*