# VainApp vs PDFAI Scan

The clearest difference is in-app purchases: VainApp at none against PDFAI Scan's 3. PDFAI Scan's advantage is iOS requirement (16.0 vs 18.2). On price, update cadence, ads and device support there is nothing between them.

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

VainApp ships an update every 5 weeks, PDFAI Scan every 3 weeks. The most recent releases landed on July 17, 2026 and August 17, 2026 respectively.

## The numbers

| Metric | VainApp | 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 | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 92 MB | 56 MB |
| Requires iOS | 18.2 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Adam Aikuta](https://appshunter.io/developer/1609682347) | [Duc Lai](https://appshunter.io/developer/1763002953) |

## What reviewers say

### VainApp

[App page](https://appshunter.io/ios/app/vainapp/id1609682165)

**Features:** macOS Compatibility

**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 VainApp free?

VainApp 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 VainApp or PDFAI Scan have ads?

Neither VainApp nor PDFAI Scan shows ads.

### Which is updated more often, VainApp or PDFAI Scan?

VainApp ships an update every 5 weeks, and PDFAI Scan every 3 weeks. Most recently, VainApp was updated on July 17, 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.*