Key vs obALu
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.
obALu
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Mit der obALu Key App steuern Sie Ihre elektronischen obALu Schlösser ganz einfach per Smartphone oder Tablet. Wichtige Funktionen und Vorteile: - Schließen und öffnen Sie Ihre Schlösser mit nur einem Tipp - Suchen Sie in Ihrer Nähe nach Schlössern - Verwalten Sie Ihre Schlösser und Zugangsberechtigungen - Wählen Sie zwischen Deutsch und Englisch Laden Sie die obALu Key App noch heute herunter und machen Sie das Nutzen Ihrer elektronischen Schlösser noch einfacher!
Screenshots
Verdict
The clearest difference is update cadence: Key at every 4 months against obALu's every 15 months. obALu's advantage is iOS requirement (13.0 vs 17.0). 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.
Key ships an update every 4 months, obALu every 15 months. The most recent releases landed on June 7, 2026 and August 2, 2026 respectively.
| Parameter | Key | obALu |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 4 months — better | Every 15 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Interflex Datensysteme GmbH | pironex GmbH |
In-app purchases
Key
No in-app purchases
obALu
No in-app purchases
