# PDF Merger vs Aether

The clearest difference is in-app purchases: Aether at none against PDF Merger's 3. Aether also leads on update cadence (every 4 days vs every 9 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Merger sells 3 in-app purchases, starting at $1.99 per 7 days. Aether asks for nothing beyond the download.

PDF Merger ships an update every 9 months, Aether every 4 days. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | PDF Merger | Aether |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 days** |
| Size | 2 MB | 6 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ahmet Bostancklioglu](https://appshunter.io/developer/1780554362) | [Red Zen Cloud LLC](https://appshunter.io/developer/1884160530) |

## What reviewers say

### PDF Merger

[App page](https://appshunter.io/ios/app/pdf-merger-combine-and-split/id6738798786)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro — Weekly | $1.99 | per 7 days |
| Pro — Yearly | $29.99 | per year |
| PDF Merger Lifetime | $59.99 | one-time |


### Aether

[App page](https://appshunter.io/ios/app/aether-ai-wingman/id6768030174)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Merger free?

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

### Is Aether free?

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

### Do PDF Merger or Aether have ads?

Neither PDF Merger nor Aether shows ads.

### Which is updated more often, PDF Merger or Aether?

PDF Merger ships an update every 9 months, and Aether every 4 days. Most recently, PDF Merger was updated on October 7, 2026 and Aether on October 8, 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.*