# Cleaner Zero vs Superpdf

The clearest difference is in-app purchases: Superpdf at none against Cleaner Zero's 2. Superpdf also leads on update cadence (every 3 days vs fortnightly) and iOS requirement (16.6 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Cleaner Zero sells 2 in-app purchases, starting at $7.99 per 7 days. Superpdf asks for nothing beyond the download.

Cleaner Zero ships an update fortnightly, Superpdf every 3 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Cleaner Zero | Superpdf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (18 ratings)](https://appshunter.io/ios/app/cleaner-zero-clean-up-storage/id6757073187/reviews)** | — |
| Number of ratings | **18** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 79 MB | 18 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PEU SX S.R.L.](https://appshunter.io/developer/1864310540) | [Shaanxi Saiwangdao Network Technology Co., Ltd](https://appshunter.io/developer/1855798461) |

## What reviewers say

### Cleaner Zero

[App page](https://appshunter.io/ios/app/cleaner-zero-clean-up-storage/id6757073187)

This AI-powered study companion helps students understand homework and master academic subjects. Get instant answers, clear explanations, and step-by-step solutions to learn effectively and improve academic performance.

**Highlights:** Instant homework checking, AI study assistant, Multi-subject learning, Step-by-step solutions, User-friendly interface

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $7.99 | per 7 days |
| Yearly Subscription | $69.99 | per year |


### Superpdf

[App page](https://appshunter.io/ios/app/superpdfsmartpdf/id6758294031)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cleaner Zero free?

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

### Is Superpdf free?

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

### Do Cleaner Zero or Superpdf have ads?

Both Cleaner Zero and Superpdf show ads.

### Which is updated more often, Cleaner Zero or Superpdf?

Cleaner Zero ships an update fortnightly, and Superpdf every 3 days. Most recently, Cleaner Zero was updated on October 7, 2026 and Superpdf on October 12, 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.*