# PDF Scanner Assistant vs HorizonRoll

The clearest difference is price: HorizonRoll at Free against PDF Scanner Assistant's $0.99. HorizonRoll also leads on update cadence (every 3 days vs monthly). PDF Scanner Assistant's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

HorizonRoll is free to download; PDF Scanner Assistant costs $0.99 up front. HorizonRoll sells 3 in-app purchases, starting at $0.99 per month. PDF Scanner Assistant asks for nothing beyond the download.

PDF Scanner Assistant ships an update monthly, HorizonRoll every 3 days. Both last shipped on October 12, 2026.

## The numbers

| Metric | PDF Scanner Assistant | HorizonRoll |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 9 MB | 2 MB |
| Requires iOS | 16.6 | **15** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [乐祥 胡](https://appshunter.io/developer/1572365721) | [CONSOLIDATED DISTRIBUTORS LLC](https://appshunter.io/developer/1542177926) |

## What reviewers say

### PDF Scanner Assistant

[App page](https://appshunter.io/ios/app/pdf-scanner-assistant/id6747924395)

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

**In-app purchases:** none


### HorizonRoll

[App page](https://appshunter.io/ios/app/horizonroll/id6760080503)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $0.99 | per month |
| Yearly Pro | $9.99 | per year |
| Lifetime Pro | $14.99 | one-time |


## Frequently asked questions

### Is PDF Scanner Assistant free?

PDF Scanner Assistant costs $0.99, with no in-app purchases.

### Is HorizonRoll free?

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

### Do PDF Scanner Assistant or HorizonRoll have ads?

Neither PDF Scanner Assistant nor HorizonRoll shows ads.

### Which is updated more often, PDF Scanner Assistant or HorizonRoll?

PDF Scanner Assistant ships an update monthly, and HorizonRoll every 3 days. Most recently, PDF Scanner Assistant was updated on October 12, 2026 and HorizonRoll on October 12, 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.*