# BU01 Reader vs CS710S C# RFID Reader

The clearest difference is iOS requirement: BU01 Reader at 9.0 against CS710S C# 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.

BU01 Reader ships an update every 2 months, CS710S C# RFID Reader every 4 months. The most recent releases landed on September 9, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | BU01 Reader | CS710S C# RFID Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 1 MB | 53 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [育明 李](https://appshunter.io/developer/572761656) | [CSL](https://appshunter.io/developer/1225904973) |

## What reviewers say

### BU01 Reader

[App page](https://appshunter.io/ios/app/bu01-reader/id1435757804)

**Features:** macOS Compatibility

**In-app purchases:** none


### CS710S C# RFID Reader

[App page](https://appshunter.io/ios/app/cs710s-c-rfid-reader/id1664060768)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BU01 Reader free?

BU01 Reader is free to download, with no in-app purchases.

### Is CS710S C# RFID Reader free?

CS710S C# RFID Reader is free to download, with no in-app purchases.

### Do BU01 Reader or CS710S C# RFID Reader have ads?

Neither BU01 Reader nor CS710S C# RFID Reader shows ads.

### Which is updated more often, BU01 Reader or CS710S C# RFID Reader?

BU01 Reader ships an update every 2 months, and CS710S C# RFID Reader every 4 months. Most recently, BU01 Reader was updated on September 9, 2026 and CS710S C# RFID Reader on September 16, 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.*