# Open Scanner vs Tertiary Scanner

The clearest difference is update cadence: Open Scanner at every 10 days against Tertiary Scanner's every 5 weeks. Open Scanner also leads on iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Open Scanner ships an update every 10 days, Tertiary Scanner every 5 weeks. The most recent releases landed on September 26, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Open Scanner | Tertiary Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (192 ratings)](https://appshunter.io/ios/app/open-scanner-pdf-scanning/id6578414558/reviews)** | — |
| Number of ratings | **192** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 5 weeks |
| Monetization | Free | — |
| Size | 1 MB | 1 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Pencil Research](https://appshunter.io/developer/1473063859) | [Alfred Ang](https://appshunter.io/developer/1880940227) |

## What reviewers say

### Open Scanner

[App page](https://appshunter.io/ios/app/open-scanner-pdf-scanning/id6578414558)

Transform your device into a powerful document scanner. Quickly capture papers, automatically recognize text, and organize your scans with AI-powered features. Seamlessly share and edit your documents in various formats.

**Highlights:** Automatic text recognition (OCR), Automatic document naming, Location-based tagging, Add saved signatures, Organize and re-order pages, iCloud sync, Annotate and edit scans, Export as PDF

**Features:** Vision Pro support

**In-app purchases:** none


### Tertiary Scanner

[App page](https://appshunter.io/ios/app/tertiary-scanner/id6779988762)

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

**In-app purchases:** none


## Frequently asked questions

### Is Open Scanner free?

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

### Is Tertiary Scanner free?

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

### Do Open Scanner or Tertiary Scanner have ads?

Neither Open Scanner nor Tertiary Scanner shows ads.

### Which is updated more often, Open Scanner or Tertiary Scanner?

Open Scanner ships an update every 10 days, and Tertiary Scanner every 5 weeks. Most recently, Open Scanner was updated on September 26, 2026 and Tertiary Scanner on September 10, 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.*