# AI CHAT ASSISTANT vs ToPDF

The clearest difference is in-app purchases: AI CHAT ASSISTANT at none against ToPDF's 2. AI CHAT ASSISTANT also leads on iOS requirement (12.4 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ToPDF sells 2 in-app purchases, starting at $4.99 per 7 days. AI CHAT ASSISTANT asks for nothing beyond the download.

AI CHAT ASSISTANT ships an update every 5 months, ToPDF every 6 months. The most recent releases landed on October 9, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | AI CHAT ASSISTANT | ToPDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 6 months |
| Size | 29 MB | 4 MB |
| Requires iOS | **12.4** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TripnCar](https://appshunter.io/developer/1325978866) | [Elhassnaoui Yassine](https://appshunter.io/developer/1756008976) |

## What reviewers say

### AI CHAT ASSISTANT

[App page](https://appshunter.io/ios/app/ai-chat-assistant/id6451230435)

**Features:** macOS Compatibility

**In-app purchases:** none


### ToPDF

[App page](https://appshunter.io/ios/app/topdf-pdf-maker-sign-document/id6745786216)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $4.99 | per 7 days |
| Yearly Subscription | $9.99 | per year |


## Frequently asked questions

### Is AI CHAT ASSISTANT free?

AI CHAT ASSISTANT is free to download, with no in-app purchases.

### Is ToPDF free?

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

### Do AI CHAT ASSISTANT or ToPDF have ads?

Neither AI CHAT ASSISTANT nor ToPDF shows ads.

### Which is updated more often, AI CHAT ASSISTANT or ToPDF?

AI CHAT ASSISTANT ships an update every 5 months, and ToPDF every 6 months. Most recently, AI CHAT ASSISTANT was updated on October 9, 2026 and ToPDF on October 21, 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.*