# RFControl BT vs Saerin Scanner

The clearest difference is update cadence: Saerin Scanner at monthly against RFControl BT's every 8 months. RFControl BT's advantage is iOS requirement (10.0 vs 15.5). 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.

RFControl BT ships an update every 8 months, Saerin Scanner monthly. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | RFControl BT | Saerin Scanner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Monthly** |
| Size | 63 MB | 67 MB |
| Requires iOS | **10.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Novatronica](https://appshunter.io/developer/1466054131) | [Saerin Tech](https://appshunter.io/developer/1859601102) |

## What reviewers say

### RFControl BT

[App page](https://appshunter.io/ios/app/rfcontrol-bt/id1534130308)

**In-app purchases:** none


### Saerin Scanner

[App page](https://appshunter.io/ios/app/saerin-scanner-pdf-scanner/id6756262266)

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

**In-app purchases:** none


## Frequently asked questions

### Is RFControl BT free?

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

### Is Saerin Scanner free?

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

### Do RFControl BT or Saerin Scanner have ads?

Neither RFControl BT nor Saerin Scanner shows ads.

### Which is updated more often, RFControl BT or Saerin Scanner?

RFControl BT ships an update every 8 months, and Saerin Scanner monthly. Most recently, RFControl BT was updated on November 7, 2026 and Saerin Scanner on October 30, 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.*