# KnoWhiz vs AskPDF

The clearest difference is iOS requirement: KnoWhiz at 13.0 against AskPDF's 15. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. KnoWhiz sells 2 in-app purchases, starting at $2.99 per month and AskPDF sells 6 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | KnoWhiz | AskPDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/knowhiz/id6670285646/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 86 MB |
| Requires iOS | **13.0** | 15 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Curastone CORP.](https://appshunter.io/developer/1609919101) | [Cihat Akkiraz](https://appshunter.io/developer/1535970770) |

## What reviewers say

### KnoWhiz

[App page](https://appshunter.io/ios/app/knowhiz/id6670285646)

This AI-powered tool transforms your study materials into structured digital flashcards. It automatically generates and refines flashcard content based on your learning objectives or provided text, streamlining exam preparation.

**Highlights:** AI-powered flashcard generation, Structured content adjustment, Input learning objectives, Process textual materials, Digital flashcard creation

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnoWhiz Plus Monthly | $2.99 | per month |
| KnoWhiz Premium Monthly | $9.99 | per month |


### 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 |


## Frequently asked questions

### Is KnoWhiz free?

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

### Is AskPDF free?

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

### Do KnoWhiz or AskPDF have ads?

Neither KnoWhiz nor AskPDF shows ads.

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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.*