MasterKey vs NFC TagKit
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.
NFC TagKit
This app allows you to read and write data to various types of RFID tags. It can display detailed information about transponders and supports creating and writing NDEF records on MIFARE® DESFire® tags.
- Read transponder information (type, manufacturer, serial number)
- Display NDEF record data (URL, text, contact)
- Read data from MIFARE® DESFire® tags
- Write files and NDEF records on MIFARE® DESFire® tags
- Supports various tag types (MIFARE, Ntag, FeliCa, ISO)
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NFCTagKit is an application for working with RFID tags. It provides such functions as reading different kinds of transponders and writing on MIFARE® DESFire® tags. Activating a reading function of the application displays all necessary information about the transponders: • tag type and manufacturer • technologies • serial number • total memory size • filled data volume • etc. Besides that, there is all the information about NDEF records and all the data on the card for such formats as • URL • text message • contact information • etc. One of the key advantages is reading the data from MIFARE® DESFire® transponders, including applications, files, and keys. Activating a writing function of the app grants the possibility to use the demo of the CoreWillSoft GmbH solution. The users can create and write files on the MIFARE® DESFire® tags and make different types of NDEF records. The NFCTagKit App supports such types of tags, as: • MIFARE® DESFire® EV1 • MIFARE® DESFire® EV2 • MIFARE® Ultralight® • MIFARE® Ultralight® C • MIFARE® Ultralight® EV1 • Ntag 213 • Ntag 215 • ISO15693 • FeliCa • ISO7816 (ISO14443-4 type A / B tag with ISO7816 communication protocol) The full functionality of our solution is available for ordering on the CoreWillSoft GmbH website. We are providing the decisions for all kinds of businesses that use RFID technologies and mobile identification.
Screenshots
Verdict
The clearest difference is update cadence: MasterKey at every 3 weeks against NFC TagKit's every 4 months. MasterKey also leads on iOS requirement (9.0 vs 15.6). 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, NFC TagKit every 4 months. The most recent releases landed on September 17, 2026 and June 10, 2026 respectively.
| Parameter | MasterKey | NFC TagKit |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 2 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | SMARTCHIP MICROELECTRONICS CORP. | CoreWillSoft GmbH |
In-app purchases
MasterKey
No in-app purchases
NFC TagKit
No in-app purchases
Questions
Is MasterKey free?
Is NFC TagKit free?
Do MasterKey or NFC TagKit have ads?
Which is updated more often, MasterKey or NFC TagKit?
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