MasterKey vs TagAccess
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MasterKey
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- Let you feel the convenience of keyless opening, and can manage all your keys at the same time. - The dual-frequency function automatically recognizes the properties of the door lock and then opens the door with the corresponding key.
TagAccess
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.
- 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
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Simple to Connect, Easy to Configure. Give You Complete Control over RFID tags. 1. Easy pairing via Bluetooth. 2. Data formatting and read tag as keystroke increase flexibility and productivity. 3. Complete visibility of RFID tag inventory with a clear dashboard showing performance, asset counting and signal power. 4. RFID commands such as Tag Inventory, Reading, Writing, Finding, Locking and Killing by Unitech RFID Readers. 5. RFID profile repository for adding, editing and deleting which enables user to switch to the corresponding profile for different scene when operating RFID command. 6. SGTIN operations such as SGTIN Inventory and SGTIN Match by Unitech RFID Readers.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | MasterKey | TagAccess |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | SMARTCHIP MICROELECTRONICS CORP. | Unitech Electronics Co., Ltd., |
In-app purchases
MasterKey
No in-app purchases
TagAccess
No in-app purchases
