# AI Summary vs PDFAI Scan

The clearest difference is in-app purchases: AI Summary at none against PDFAI Scan's 3. PDFAI Scan's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PDFAI Scan sells 3 in-app purchases, starting at $3.99 per 7 days. AI Summary asks for nothing beyond the download.

AI Summary ships an update every 3 months, PDFAI Scan every 3 weeks. The most recent releases landed on September 19, 2026 and August 17, 2026 respectively.

## The numbers

| Metric | AI Summary | PDFAI Scan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/pdfai-scan-document-scanner/id6654887952/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | 37.5% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 33 MB | 56 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ROBOTO SYSTEMS LTD](https://appshunter.io/developer/1458146261) | [Duc Lai](https://appshunter.io/developer/1763002953) |

## What reviewers say

### AI Summary

[App page](https://appshunter.io/ios/app/ai-summary/id6581488973)

This AI-powered application provides concise summaries of YouTube videos and answers questions on any topic. It helps users save time and enhance their learning with instant, accurate information. All interactions are saved for easy future reference.

**Highlights:** YouTube video summarization, AI-powered chat for any query, Chat history for past interactions, Time-saving learning tool, Instant, accurate answers

**In-app purchases:** none


### PDFAI Scan

[App page](https://appshunter.io/ios/app/pdfai-scan-document-scanner/id6654887952)

Transform your device into a smart document scanner with AI-powered study tools. Easily scan, convert, and enhance documents, then leverage AI for summaries, flashcards, and interactive quizzes. Listen to documents read aloud and share your work in various formats.

**Highlights:** AI-powered document scanning, OCR text extraction, AI study tools (summaries, flashcards, quizzes), Text-to-Speech functionality, Export to PDF, Word, Text, Images, iCloud sync across devices

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDFAI Scan Premium Weekly | $3.99 | per 7 days |
| PDFAI Scan Premium Monthly | $4.99 | per month |
| Premium Account(1 year) | $39.99 | per year |


## Frequently asked questions

### Is AI Summary free?

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

### Is PDFAI Scan free?

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

### Do AI Summary or PDFAI Scan have ads?

AI Summary shows ads; PDFAI Scan does not.

### Which is updated more often, AI Summary or PDFAI Scan?

AI Summary ships an update every 3 months, and PDFAI Scan every 3 weeks. Most recently, AI Summary was updated on September 19, 2026 and PDFAI Scan on August 17, 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.*