# PDF Tools vs ASO Tool

The clearest difference is ads: PDF Tools at none against ASO Tool's shown. PDF Tools also leads on update cadence (every 5 days vs every 2 months). ASO Tool's advantage is ratings volume (6 vs 2) and iOS requirement (17 vs 26.2). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. PDF Tools sells 3 in-app purchases, starting at $4.99 per month and ASO Tool sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for PDF Tools against 5.0 for ASO Tool. Both are backed by a comparable volume of ratings — 2 and 6 respectively.

PDF Tools ships an update every 5 days, ASO Tool every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | PDF Tools | ASO Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/pdf-tools-merge-and-split/id6757157855/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/aso-tool-ai-keyword-tracker/id6760194537/reviews) |
| Number of ratings | 2 | **6** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 3 MB | 48 MB |
| Requires iOS | 26.2 | **17** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yehor Yurchenko](https://appshunter.io/developer/1864947095) | [An Banh](https://appshunter.io/developer/1466900439) |

## What reviewers say

### PDF Tools

[App page](https://appshunter.io/ios/app/pdf-tools-merge-and-split/id6757157855)

Easily merge, split, compress, and convert PDF files to images directly on your device. This app ensures your documents remain private and secure with offline processing. It's ideal for managing work, study, and everyday document needs.

**Highlights:** Merge multiple PDF files, Split PDFs by pages, Compress PDFs, Convert PDF to JPG/PNG, Fill PDF forms, Offline processing, Built-in file storage (Pro)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Pro Monthly | $4.99 | per month |
| PDF Pro Yearly | $19.99 | per year |
| PDF Pro – Lifetime Access | $39.99 | one-time |


### ASO Tool

[App page](https://appshunter.io/ios/app/aso-tool-ai-keyword-tracker/id6760194537)

This app assists developers and marketers in optimizing their App Store presence. It offers real-time tracking of keyword rankings, competitor analysis, and AI-powered discovery of new keyword opportunities to enhance app visibility.

**Highlights:** App Store keyword rank tracking, Competitor analysis, AI-powered keyword discovery, App visibility improvement, Real-time insights

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade Premium | $2.99 | one-time |


## Frequently asked questions

### Is PDF Tools free?

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

### Is ASO Tool free?

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

### Which has better reviews, PDF Tools or ASO Tool?

PDF Tools and ASO Tool are both rated 5.0 out of 5 on the App Store, from 2 and 6 ratings respectively.

### Do PDF Tools or ASO Tool have ads?

ASO Tool shows ads; PDF Tools does not.

### Which is updated more often, PDF Tools or ASO Tool?

PDF Tools ships an update every 5 days, and ASO Tool every 2 months. Most recently, PDF Tools was updated on October 24, 2026 and ASO Tool on October 24, 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.*