Key vs uCreate NFC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Key
Transform your iPhone into a mobile ID card for convenient door access. Securely register your credentials and use your phone to open doors, leveraging advanced encrypted transfer technology.
- Smartphone as mobile ID
- Convenient door opening
- Secure credential transfer
- iPhone integration
- Requires Interflex software
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Your smartphone as a mobile ID card: With the Interflex app "Key", you can conveniently open doors with your iPhone. This is how "Key" works: - Install the app on your iPhone. - Register the app with your access data. - Book with your iPhone to open doors. Thanks to "NetworkOnMobile" technology, we ensure encrypted and secure transfer of the mobile credential to your iPhone. Important: The use of this app requires the use of the Interflex software IF-6040 and suitable badge readers.
uCreate NFC
This app simplifies NFC application development by allowing users to program NFC tags. It enables developers to read and write basic commands, store NDEF messages with URI records, and test NFC-enabled applications.
- Program NFC tags
- Read/write basic NFC commands
- Store/read NDEF messages with URI records
- Develop, prototype, and test NFC apps
- Supports NFC Forum tag types 2, 4, and 5
- Includes SDK and documentation
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We built uCreate NFC to make NFC application development simple, letting you quickly and easily program NFC tags. Our all-in-one NFC mobile application platform makes it easy to develop, prototype, test, and successfully launch your own NFC-enabled applications. Use the app to read and write basic commands to NFC Forum tag types 2, 4, and 5. The app even lets you store and read NDEF messages with a URI record. Designed for programmers familiar with app development but new to NFC coding, our uCreate NFC software development kit (SDK) provides the source code supporting the first steps of NFC mobile app development. It is our mission to make NFC technologies more accessible to a broader range of developers, many of whom have limited or no experience with this type of technology. The uCreate NFC ecosystem provides engineers, product managers, and makers with the tools to learn, create, and test their own NFC experiences. The platform includes the mobile app, an SDK, a curated kit of NFC tags, technical support, and documentation.
Screenshots
Verdict
The clearest difference is update cadence: uCreate NFC at every 2 days against Key's every 4 months. uCreate NFC also leads on iOS requirement (14.1 vs 17.0). On price, review sentiment, ads and in-app purchases 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.
Key ships an update every 4 months, uCreate NFC every 2 days. The most recent releases landed on June 7, 2026 and September 8, 2026 respectively.
| Parameter | Key | uCreate NFC |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (6 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 6 — better |
| Update frequency | Every 4 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 17.0 | 14.1 — better |
| Further details — not scored | ||
| Size | 18 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Interflex Datensysteme GmbH | Identiv, Inc. |
Customer experience
Key
uCreate NFC
In-app purchases
Key
No in-app purchases
uCreate NFC
No in-app purchases
