# Cleaner 3S vs Zen Optimizer

The clearest difference is in-app purchases: Zen Optimizer at none against Cleaner 3S's 3. Cleaner 3S's advantage is update cadence (every 3 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Cleaner 3S sells 3 in-app purchases, starting at $0.99 per 7 days. Zen Optimizer asks for nothing beyond the download.

Cleaner 3S ships an update every 3 days, Zen Optimizer fortnightly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Cleaner 3S | Zen Optimizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Size | 13 MB | 3 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Manh Nguyen](https://appshunter.io/developer/1781255762) | [Davide Zanon](https://appshunter.io/developer/1835284463) |

## What reviewers say

### Cleaner 3S

[App page](https://appshunter.io/ios/app/cleaner-3s-memory-cleanup/id6740550765)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $0.99 | per 7 days |
| Pro Monthly | $4.99 | per month |
| Pro Lifetime Access | $19.99 | one-time |


### Zen Optimizer

[App page](https://appshunter.io/ios/app/zen-optimizer-free-space/id6766319080)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cleaner 3S free?

Cleaner 3S is free to download, with in-app purchases available.

### Is Zen Optimizer free?

Zen Optimizer is free to download, with no in-app purchases.

### Do Cleaner 3S or Zen Optimizer have ads?

Neither Cleaner 3S nor Zen Optimizer shows ads.

### Which is updated more often, Cleaner 3S or Zen Optimizer?

Cleaner 3S ships an update every 3 days, and Zen Optimizer fortnightly. Most recently, Cleaner 3S was updated on October 28, 2026 and Zen Optimizer on October 25, 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.*