Comparison

Key vs Mobile Badge

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Smartphone as mobile ID
  • Convenient door opening
  • Secure credential transfer
  • iPhone integration
  • Requires Interflex software
Read full description

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.

About

Mobile Badge

Transform your smartphone into a contactless access badge for authentication and device login. This app offers a simple, friction-free solution for secure access without physical cards or PINs, with advanced enterprise options available.

Highlights
  • Contactless badge for authentication
  • Unlock devices and print stations
  • Bluetooth access with ELATEC readers
  • Minimal setup required
  • Optional advanced credential management
Features
Read full description

Mobile Badge turns your smartphone into a reliable, contactless badge for authentication and access. Whether you're unlocking a print release station or logging into a device, just walk up with your phone no plastic cards, no PINs, no friction. Designed for simplicity, the Standard Edition requires no account, no pairing, and no backend setup. Just install the app and you’re ready to go with supported Bluetooth-enabled ELATEC readers. Need more control? We also offer solutions with remote pass management, user-specific credentials, and revocation capabilities. If you're looking for advanced features or enterprise deployment options, reach out we’d be happy to help. Looking for managed credentials, user-specific control, or integrations? Reach out to our support team to learn about our extended solutions. Key Features: - Bluetooth access via supported ELATEC readers - Minimal setup required, flexible for various environments - Ideal for secure printing, workstation login, and shared device scenarios - Optional advanced credential management available Whether you're a daily user or managing large-scale deployments, Mobile Badge brings mobile identity into the real world in a way that is fluid, reliable, and future-ready.

Screenshots

Key4 screens
Mobile Badge3 screens

Verdict

The call

The clearest difference is review sentiment: Key at 100% against Mobile Badge's 50%. Key also leads on device support (3 vs 1). Mobile Badge's advantage is update cadence (every 6 weeks vs every 4 months). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Key ships an update every 4 months, Mobile Badge every 6 weeks. The most recent releases landed on September 14, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 7 level
Key versus Mobile Badge: the parameters behind the verdict, then further details
ParameterKeyMobile Badge
PriceFreeFree
Rating—3.7 (3 ratings) — better
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 4 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS17.016.6 — better
Further details — not scored
Size18 MB7 MB
Age rating4+4+
DeveloperInterflex Datensysteme GmbHElatec GmbH

Customer experience

Key

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Mobile Badge

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Key

No in-app purchases

None

Mobile Badge

No in-app purchases

Questions

Is Key free?
Key is free to download, with no in-app purchases.
Is Mobile Badge free?
Mobile Badge is free to download, with no in-app purchases.
Do Key or Mobile Badge have ads?
Neither Key nor Mobile Badge shows ads.
Which is updated more often, Key or Mobile Badge?
Key ships an update every 4 months, and Mobile Badge every 6 weeks. Most recently, Key was updated on September 14, 2026 and Mobile Badge on October 1, 2026.

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