# SmoothPrompter vs ChatPDF AI

The clearest difference is ads: ChatPDF AI at none against SmoothPrompter's shown. ChatPDF AI also leads on iOS requirement (15.5 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. SmoothPrompter sells 1 one-off in-app purchase and ChatPDF AI sells 5 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

SmoothPrompter ships an update every 5 days, ChatPDF AI every 9 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SmoothPrompter | ChatPDF AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 9 days |
| Size | 6 MB | 100 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Daniel Viorel Popa](https://appshunter.io/developer/1798083497) | [nimet oz](https://appshunter.io/developer/1861573318) |

## What reviewers say

### SmoothPrompter

[App page](https://appshunter.io/ios/app/smoothprompter-teleprompter/id6754823817)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### ChatPDF AI

[App page](https://appshunter.io/ios/app/chatpdf-ai-chat-pdf-document/id6759845164)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $4.99 | per 7 days |
| Weekly Pro | $6.99 | per 7 days |
| Monthly Pro | $19.99 | per month |
| Yearly Pro | $44.99 | per year |
| Yearly Pro | $89.99 | per year |


## Frequently asked questions

### Is SmoothPrompter free?

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

### Is ChatPDF AI free?

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

### Do SmoothPrompter or ChatPDF AI have ads?

SmoothPrompter shows ads; ChatPDF AI does not.

### Which is updated more often, SmoothPrompter or ChatPDF AI?

SmoothPrompter ships an update every 5 days, and ChatPDF AI every 9 days. Most recently, SmoothPrompter was updated on October 30, 2026 and ChatPDF AI on October 28, 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.*