# Big Dub vs FourKeys

The clearest difference is in-app purchases: Big Dub at none against FourKeys's 1. Big Dub also leads on iOS requirement (11.0 vs 17.0). FourKeys's advantage is device support. On price there is nothing between them.

Both are free to download. FourKeys sells 1 one-off in-app purchase. Big Dub asks for nothing beyond the download.

## The numbers

| Metric | Big Dub | FourKeys |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 66 MB | 23 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | — | **iPhone, Apple Watch** |
| Age rating | 17+ | 9+ |
| Developer | [Taiyi Digital Limited Company](https://appshunter.io/developer/1633193444) | [敏刚 易](https://appshunter.io/developer/1872259103) |

## What reviewers say

### Big Dub

[App page](https://appshunter.io/ios/app/big-dub/id6476832366)

**In-app purchases:** none


### FourKeys

[App page](https://appshunter.io/ios/app/fourkeys-sound-button/id6761699602)

Tap large buttons to play funny sound effects instantly. Create custom soundboards with your own recordings or imported audio. Enjoy this satisfying sound toy on your iPhone, Apple Watch, and home screen widget for pranks or stress relief.

**Highlights:** Instant sound effect playback, Customizable soundboards, Record and import audio, iPhone and Apple Watch support, Interactive home screen widget, Shareable keyboard packs

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FourKeys Unlimited | $1.99 | one-time |


## Frequently asked questions

### Is Big Dub free?

Big Dub is free to download, with no in-app purchases.

### Is FourKeys free?

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

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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.*