# Humbot AI vs PDF Reader

The clearest difference is iOS requirement: Humbot AI at 15.6 against PDF Reader's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Humbot AI sells 3 in-app purchases, starting at $9.99 per 7 days and PDF Reader sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Humbot AI ships an update every 2 weeks, PDF Reader every 3 weeks. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Humbot AI | PDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/humbot-ai/id6770942837/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 63 MB | 10 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Asad Ullah Ahmed](https://appshunter.io/developer/1896767547) | [Hoang Ngoc Son](https://appshunter.io/developer/1890619478) |

## What reviewers say

### Humbot AI

[App page](https://appshunter.io/ios/app/humbot-ai/id6770942837)

This AI-powered tool helps you refine your writing by transforming AI-generated text into natural, human-like content. It also offers features to detect AI writing, paraphrase, fix grammar, summarize, change tone, check for plagiarism, and expand on ideas.

**Highlights:** AI text humanizer, AI content detector, Paraphrasing tool, Grammar correction, Text summarization, Tone adjustment, Plagiarism checker

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $9.99 | per 7 days |
| Monthly Subscription | $24.99 | per month |
| Yearly Subscription | $39.99 | per year |


### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-editor-and-scanner/id6775700755)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Pro Weekly | $3.99 | per 7 days |
| PDF Pro Monthly | $5.99 | per month |
| PDF Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Humbot AI free?

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

### Is PDF Reader free?

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

### Do Humbot AI or PDF Reader have ads?

Neither Humbot AI nor PDF Reader shows ads.

### Which is updated more often, Humbot AI or PDF Reader?

Humbot AI ships an update every 2 weeks, and PDF Reader every 3 weeks. Most recently, Humbot AI was updated on October 21, 2026 and PDF Reader on October 25, 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.*