# PDF보내요 vs 우수AI

The clearest difference is in-app purchases: PDF보내요 at none against 우수AI's 2. PDF보내요 also leads on update cadence (daily vs monthly) and iOS requirement (15.0 vs 18.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. 우수AI sells 2 in-app purchases, starting at $30.99 per month. PDF보내요 asks for nothing beyond the download.

PDF보내요 ships an update daily, 우수AI monthly. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | PDF보내요 | 우수AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/pdf/id6780136280/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Monthly |
| Monetization | **Free** | Freemium |
| Size | 7 MB | 11 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [se hwan cha](https://appshunter.io/developer/884914489) | [mobldi](https://appshunter.io/developer/1555909528) |

## What reviewers say

### PDF보내요

[App page](https://appshunter.io/ios/app/pdf/id6780136280)

This app offers a comprehensive suite of tools for managing PDF documents directly on your device. Easily scan, merge, compress, sign, and redact sensitive information without uploading your files to external servers. It's designed for quick and secure PDF handling for various submission and sharing needs.

**Highlights:** Scan documents to PDF, Convert photos to PDF, Merge and split PDFs, Compress PDFs to target size, Redact sensitive information, Add electronic signatures, Convert web pages to PDF

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

**In-app purchases:** none


### 우수AI

[App page](https://appshunter.io/ios/app/ai-ai/id6790740076)

Access a wide range of advanced AI models for text, image, and video creation and analysis in one app. Compare AI responses, analyze various file formats, and generate high-quality visuals with a single subscription.

**Highlights:** Access 30+ global AI models with one subscription, Compare AI responses side-by-side, Analyze 126 file formats with OCR, Generate images and videos with AI, Local storage for conversation history, Folder-based organization for projects

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OosooAI Platinum Air - Monthly | $30.99 | per month |
| OosooAI Platinum Air - Annual | $319.99 | per year |


## Frequently asked questions

### Is PDF보내요 free?

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

### Is 우수AI free?

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

### Do PDF보내요 or 우수AI have ads?

Neither PDF보내요 nor 우수AI shows ads.

### Which is updated more often, PDF보내요 or 우수AI?

PDF보내요 ships an update daily, and 우수AI monthly. Most recently, PDF보내요 was updated on October 4, 2026 and 우수AI on October 2, 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.*