# ChatGO vs PrepDoc

The clearest difference is price: ChatGO at Free against PrepDoc's $2.99. ChatGO also leads on iOS requirement (15.1 vs 18.6). PrepDoc's advantage is in-app purchases (none vs 18). On update cadence, ads and device support there is nothing between them.

ChatGO is free to download; PrepDoc costs $2.99 up front. ChatGO sells 18 in-app purchases, starting at $1.99 per 7 days. PrepDoc asks for nothing beyond the download.

ChatGO ships an update weekly, PrepDoc every 5 days. The most recent releases landed on October 12, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | ChatGO | PrepDoc |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.3 (359 ratings)](https://appshunter.io/ios/app/chatgo-chatbot-ai/id6753873785/reviews)** | — |
| Number of ratings | **359** | — |
| Positive reviews | 21.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 194 MB | 3 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Wachanga LTD](https://appshunter.io/developer/1521231523) | [Ferkan Sari](https://appshunter.io/developer/1547086877) |

## What reviewers say

### ChatGO

[App page](https://appshunter.io/ios/app/chatgo-chatbot-ai/id6753873785)

This AI assistant helps with writing, research, and everyday tasks. It can generate content, analyze documents, and create images from text. Interact via typing, speaking, or uploading files for faster productivity.

**Highlights:** AI chat assistant, AI writing assistant, Text-to-image generator, Photo analyzer & OCR, Document analyzer, Web search & live information, Voice input

**Features:** macOS Compatibility

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus | $1.99 | per 7 days |
| Plus | $2.99 | per month |
| Plus | $7.99 | per 7 days |
| Pro | $7.99 | per 7 days |
| Pro | $7.99 | per 7 days |
| Pro | $8.49 | per 7 days |
| Pro | $8.99 | per 7 days |
| Pro | $17.99 | per year |
| Pro | $19.99 | per year |
| Pro | $20.49 | per year |
| Pro | $23.99 | per year |
| Pro | $27.99 | per year |
| Pro | $31.99 | per year |
| Plus | $31.99 | per 3 months |
| Pro | $35.99 | per year |
| Pro | $44.99 | per year |
| Pro | $64.99 | per year |
| Pro | $69.99 | per year |


### PrepDoc

[App page](https://appshunter.io/ios/app/prepdoc-document-scanner/id6760216278)

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

**In-app purchases:** none


## Frequently asked questions

### Is ChatGO free?

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

### Is PrepDoc free?

PrepDoc costs $2.99, with no in-app purchases.

### Do ChatGO or PrepDoc have ads?

Neither ChatGO nor PrepDoc shows ads.

### Which is updated more often, ChatGO or PrepDoc?

ChatGO ships an update weekly, and PrepDoc every 5 days. Most recently, ChatGO was updated on October 12, 2026 and PrepDoc on September 20, 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.*