# Ai Scan Lite vs Instant Doc

The clearest difference is in-app purchases: Instant Doc at none against Ai Scan Lite's 2. Instant Doc also leads on update cadence (every 8 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Ai Scan Lite sells 2 one-off in-app purchases. Instant Doc asks for nothing beyond the download.

Ai Scan Lite ships an update every 2 months, Instant Doc every 8 days. The most recent releases landed on November 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Ai Scan Lite | Instant Doc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 8 days** |
| Size | 116 MB | 133 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [方青 范](https://appshunter.io/developer/1684179277) | [Axel FLEURY](https://appshunter.io/developer/1561932445) |

## What reviewers say

### Ai Scan Lite

[App page](https://appshunter.io/ios/app/ai-scan-lite-pdf-scanner/id6469973421)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add 100 times | $9.99 | one-time |
| Remove all ads | $9.99 | one-time |


### Instant Doc

[App page](https://appshunter.io/ios/app/instant-doc-pdf-scanner/id6761603073)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ai Scan Lite free?

Ai Scan Lite is free to download, with in-app purchases available.

### Is Instant Doc free?

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

### Do Ai Scan Lite or Instant Doc have ads?

Both Ai Scan Lite and Instant Doc show ads.

### Which is updated more often, Ai Scan Lite or Instant Doc?

Ai Scan Lite ships an update every 2 months, and Instant Doc every 8 days. Most recently, Ai Scan Lite was updated on November 7, 2026 and Instant Doc 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.*