# Buzzer Knockout vs SpinStrike Balls

The clearest difference is in-app purchases: SpinStrike Balls at none against Buzzer Knockout's 5. SpinStrike Balls also leads on ads (none vs shown). Buzzer Knockout's advantage is device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. Buzzer Knockout sells 5 one-off in-app purchases. SpinStrike Balls asks for nothing beyond the download.

## The numbers

| Metric | Buzzer Knockout | SpinStrike Balls |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 8 days | — |
| Size | 25 MB | 1 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stavros Petropoulos](https://appshunter.io/developer/1895016415) | [Daniel Collinsworth](https://appshunter.io/developer/1846000225) |

## What reviewers say

### Buzzer Knockout

[App page](https://appshunter.io/ios/app/buzzer-knockout/id6773007504)

**Features:** Apple Watch app, iMessage stickers

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Sparks | $0.99 | one-time |
| 500 Sparks | $2.99 | one-time |
| 1,200 Sparks | $3.99 | one-time |
| Premium Pass | $8.99 | one-time |
| 3,000 Sparks | $8.99 | one-time |


### SpinStrike Balls

[App page](https://appshunter.io/ios/app/spinstrike-balls/id6779471171)

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

**In-app purchases:** none


## Frequently asked questions

### Is Buzzer Knockout free?

Buzzer Knockout is free to download, with in-app purchases available.

### Is SpinStrike Balls free?

SpinStrike Balls is free to download, with no in-app purchases.

### Do Buzzer Knockout or SpinStrike Balls have ads?

Buzzer Knockout shows ads; SpinStrike Balls 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.*