# Viper Bash vs Bison Attack!

Viper Bash and Bison Attack! are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Viper Bash ships an update every 9 days, Bison Attack! weekly. The most recent releases landed on September 29, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Viper Bash | Bison Attack! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 9 days | **Weekly** |
| Size | 202 MB | 13 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [Enlumis Entertainment](https://appshunter.io/developer/1547986501) | [Kien Pham](https://appshunter.io/developer/1895602453) |

## What reviewers say

### Viper Bash

[App page](https://appshunter.io/ios/app/viper-bash/id6762786943)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bison Attack!

[App page](https://appshunter.io/ios/app/bison-attack/id6794616219)

**In-app purchases:** none


## Frequently asked questions

### Is Viper Bash free?

Viper Bash is free to download, with no in-app purchases.

### Is Bison Attack! free?

Bison Attack! is free to download, with no in-app purchases.

### Do Viper Bash or Bison Attack! have ads?

Both Viper Bash and Bison Attack! show ads.

### Which is updated more often, Viper Bash or Bison Attack!?

Viper Bash ships an update every 9 days, and Bison Attack! weekly. Most recently, Viper Bash was updated on September 29, 2026 and Bison Attack! on October 1, 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.*