# DopamineOS vs Zipper Lock Screen Studio

The clearest difference is in-app purchases: Zipper Lock Screen Studio at none against DopamineOS's 1. DopamineOS's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. DopamineOS sells 1 one-off in-app purchase. Zipper Lock Screen Studio asks for nothing beyond the download.

DopamineOS ships an update every 2 months, Zipper Lock Screen Studio every 5 weeks. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | DopamineOS | Zipper Lock Screen Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 56 MB | 7 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Konrad Kern](https://appshunter.io/developer/6775921733) | [amine salami](https://appshunter.io/developer/6776179539) |

## What reviewers say

### DopamineOS

[App page](https://appshunter.io/ios/app/dopamineos/id6782207382)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DopamineOS Pro | $1.99 | one-time |


### Zipper Lock Screen Studio

[App page](https://appshunter.io/ios/app/zipper-lock-screen-studio/id6788706305)

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

**In-app purchases:** none


## Frequently asked questions

### Is DopamineOS free?

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

### Is Zipper Lock Screen Studio free?

Zipper Lock Screen Studio is free to download, with no in-app purchases.

### Do DopamineOS or Zipper Lock Screen Studio have ads?

Zipper Lock Screen Studio shows ads; DopamineOS does not.

### Which is updated more often, DopamineOS or Zipper Lock Screen Studio?

DopamineOS ships an update every 2 months, and Zipper Lock Screen Studio every 5 weeks. Most recently, DopamineOS was updated on October 14, 2026 and Zipper Lock Screen Studio on October 18, 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.*