# ASBL Engineering vs PDF Scanner RS

The clearest difference is in-app purchases: ASBL Engineering at none against PDF Scanner RS's 3. PDF Scanner RS's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PDF Scanner RS sells 3 in-app purchases, starting at $2.99 per 7 days. ASBL Engineering asks for nothing beyond the download.

ASBL Engineering ships an update every 2 months, PDF Scanner RS every 6 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ASBL Engineering | PDF Scanner RS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 59 MB | 94 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [INNCIRCLES TECHNOLOGIES PRIVAT E LIMITED](https://appshunter.io/developer/1484427252) | [Robel Sharma](https://appshunter.io/developer/1873604049) |

## What reviewers say

### ASBL Engineering

[App page](https://appshunter.io/ios/app/asbl-engineering/id1636424319)

**In-app purchases:** none


### PDF Scanner RS

[App page](https://appshunter.io/ios/app/pdf-scanner-rs-scan-and-ocr/id6758555268)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $2.99 | per 7 days |
| Monthly Subscription | $6.99 | per month |
| Yearly Subscription | $24.99 | per year |


## Frequently asked questions

### Is ASBL Engineering free?

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

### Is PDF Scanner RS free?

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

### Do ASBL Engineering or PDF Scanner RS have ads?

Neither ASBL Engineering nor PDF Scanner RS shows ads.

### Which is updated more often, ASBL Engineering or PDF Scanner RS?

ASBL Engineering ships an update every 2 months, and PDF Scanner RS every 6 weeks. Most recently, ASBL Engineering was updated on October 27, 2026 and PDF Scanner RS 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.*