# PDF Scanner vs Aerostack

The clearest difference is in-app purchases: Aerostack at none against PDF Scanner's 1. Aerostack also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. PDF Scanner sells 1 one-off in-app purchase. Aerostack asks for nothing beyond the download.

PDF Scanner ships an update every 5 days, Aerostack every 4 days. Both last shipped on October 27, 2026.

## The numbers

| Metric | PDF Scanner | Aerostack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 4 days** |
| Size | 15 MB | 37 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [杨胜 朱](https://appshunter.io/developer/1609009505) | [Navin Sharma](https://appshunter.io/developer/1731297170) |

## What reviewers say

### PDF Scanner

[App page](https://appshunter.io/ios/app/pdf-scannerscan-pdf-printer/id6448204551)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Account | $2.99 | one-time |


### Aerostack

[App page](https://appshunter.io/ios/app/aerostack/id6761647592)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Scanner free?

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

### Is Aerostack free?

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

### Do PDF Scanner or Aerostack have ads?

PDF Scanner shows ads; Aerostack does not.

### Which is updated more often, PDF Scanner or Aerostack?

PDF Scanner ships an update every 5 days, and Aerostack every 4 days. Most recently, PDF Scanner was updated on October 27, 2026 and Aerostack on October 27, 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.*