# AskPDF vs Fehm

The clearest difference is in-app purchases: Fehm at none against AskPDF's 6. Fehm also leads on update cadence (every 4 days vs every 14 months). AskPDF's advantage is iOS requirement (15 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. AskPDF sells 6 in-app purchases, starting at $7.99 per 7 days. Fehm asks for nothing beyond the download.

AskPDF ships an update every 14 months, Fehm every 4 days. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | AskPDF | Fehm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 4 days** |
| Size | 86 MB | 14 MB |
| Requires iOS | **15** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cihat Akkiraz](https://appshunter.io/developer/1535970770) | [Bonded App LLC](https://appshunter.io/developer/1812522064) |

## What reviewers say

### AskPDF

[App page](https://appshunter.io/ios/app/askpdf-chat-pdf-ai-summary/id6746080072)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AskPDF Pro Weekly | $7.99 | per 7 days |
| AskPDF Pro Monthly | $19.99 | per month |
| AskPDF Pro Package 1 | $4.99 | one-time |
| AskPDF Pro Package 2 | $9.99 | one-time |
| AskPDF Pro Package 3 | $24.99 | one-time |
| AskPDF Pro Package 4 | $29.99 | one-time |


### Fehm

[App page](https://appshunter.io/ios/app/fehm/id6758907228)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AskPDF free?

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

### Is Fehm free?

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

### Do AskPDF or Fehm have ads?

Neither AskPDF nor Fehm shows ads.

### Which is updated more often, AskPDF or Fehm?

AskPDF ships an update every 14 months, and Fehm every 4 days. Most recently, AskPDF was updated on October 6, 2026 and Fehm on October 5, 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.*