# CS108 RFID Reader vs MasterKey

The clearest difference is iOS requirement: MasterKey at 9.0 against CS108 RFID Reader's 11.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

CS108 RFID Reader ships an update every 5 weeks, MasterKey every 3 weeks. The most recent releases landed on June 5, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | CS108 RFID Reader | MasterKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (6 ratings)](https://appshunter.io/ios/app/cs108-rfid-reader/id1225904974/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 51 MB | 2 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CSL](https://appshunter.io/developer/1225904973) | [SMARTCHIP MICROELECTRONICS CORP.](https://appshunter.io/developer/872823142) |

## What reviewers say

### CS108 RFID Reader

[App page](https://appshunter.io/ios/app/cs108-rfid-reader/id1225904974)

This utility app demonstrates the capabilities of the CS108 RFID reader. Users can explore its functions and access the source code for further development on the developer's website.

**Highlights:** RFID reader function demonstration, Source code access, Utility for developers, Cross-device compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### MasterKey

[App page](https://appshunter.io/ios/app/masterkey/id1359619946)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CS108 RFID Reader free?

CS108 RFID Reader is free to download, with no in-app purchases.

### Is MasterKey free?

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

### Do CS108 RFID Reader or MasterKey have ads?

Neither CS108 RFID Reader nor MasterKey shows ads.

### Which is updated more often, CS108 RFID Reader or MasterKey?

CS108 RFID Reader ships an update every 5 weeks, and MasterKey every 3 weeks. Most recently, CS108 RFID Reader was updated on June 5, 2026 and MasterKey on September 17, 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.*