# MasterKey vs TagAccess

The clearest difference is update cadence: MasterKey at every 3 weeks against TagAccess's every 5 months. MasterKey also leads on iOS requirement (9.0 vs 15.0). 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.

MasterKey ships an update every 3 weeks, TagAccess every 5 months. The most recent releases landed on September 17, 2026 and June 6, 2026 respectively.

## The numbers

| Metric | MasterKey | TagAccess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/tagaccess/id1618141818/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | — | Free |
| Size | 2 MB | 31 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SMARTCHIP MICROELECTRONICS CORP.](https://appshunter.io/developer/872823142) | [Unitech Electronics Co., Ltd.,](https://appshunter.io/developer/923825884) |

## What reviewers say

### MasterKey

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

**Features:** macOS Compatibility

**In-app purchases:** none


### TagAccess

[App page](https://appshunter.io/ios/app/tagaccess/id1618141818)

This utility app allows users to connect to and control RFID readers via Bluetooth. It offers features for data formatting, tag inventory management, and executing various RFID commands for enhanced productivity.

**Highlights:** Bluetooth pairing, Data formatting and keystroke input, RFID tag inventory dashboard, RFID command execution (Inventory, Read, Write, Find, Lock, Kill), RFID profile management, SGTIN operations

**In-app purchases:** none


## Frequently asked questions

### Is MasterKey free?

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

### Is TagAccess free?

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

### Do MasterKey or TagAccess have ads?

Neither MasterKey nor TagAccess shows ads.

### Which is updated more often, MasterKey or TagAccess?

MasterKey ships an update every 3 weeks, and TagAccess every 5 months. Most recently, MasterKey was updated on September 17, 2026 and TagAccess on June 6, 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.*