# Smash PDF vs AI

The clearest difference is in-app purchases: AI at none against Smash PDF's 1. Smash PDF's advantage is ads (none vs shown) and update cadence (every 6 days vs fortnightly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Smash PDF sells 1 one-off in-app purchase. AI asks for nothing beyond the download.

Smash PDF ships an update every 6 days, AI fortnightly. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Smash PDF | AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Fortnightly |
| Size | 38 MB | 6 MB |
| Requires iOS | **15.6** | 16 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [chaman chlach](https://appshunter.io/developer/907477610) | [Jonas Gottsche](https://appshunter.io/developer/1895038317) |

## What reviewers say

### Smash PDF

[App page](https://appshunter.io/ios/app/smash-pdf/id6752800566)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smash PDF Pro Lifetime | $2.99 | one-time |


### AI

[App page](https://appshunter.io/ios/app/ai-double-check/id6762848385)

**In-app purchases:** none


## Frequently asked questions

### Is Smash PDF free?

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

### Is AI free?

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

### Do Smash PDF or AI have ads?

AI shows ads; Smash PDF does not.

### Which is updated more often, Smash PDF or AI?

Smash PDF ships an update every 6 days, and AI fortnightly. Most recently, Smash PDF was updated on October 11, 2026 and AI 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.*