EU vs CA4K
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EU
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專屬於EU-ONE的APP。 可以自由變換音色與彈奏模式， 同時可以藉由藍芽MIDI連結專用的App，來變換更多的不同設定。 Exclusive for EU-ONE APP. Sound and play modes can be freely changed. Other mobile devices using Bluetooth to switch between different settings can also be connected for more diverse applications
CA4K
This app provides mobile access control for enterprise entry points like doors and elevators. Users can customize their approved access points and gain entry without physical credentials. It also offers optional administrator functions for system management.
- Mobile access to doors and elevators
- Customize approved entry points
- Log access without physical credentials
- Administrator functions for system management
- Enterprise electronic access control
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CA4K Access MGR APP The CA4K Access App is designed to work with Continental Access CA4K Software v1.1 or higher. The software and its associated hardware provide enterprise electronic access control to doors, elevators and other entry ways. The App allows smart mobile users to customize a list of their approved entry points in the "My Doors" tab and gain logged access to the entry points without having to use a physically supplied credential. Additionally, the App provides some optional CA4K administrator level functions for mobile control and management of the CA4K system. The CA4K Access App is an ideal tool for Schools, Universities, Hospitals, Commercial Buildings, Multi-Tenant Residential Buildings, etc.
Screenshots
Verdict
The clearest difference is iOS requirement: CA4K at 11.0 against EU's 16.0. On price, update cadence, 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.
EU ships an update every 42 months, CA4K every 54 months. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.
| Parameter | EU | CA4K |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.1 (11 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 11 — better |
| Update frequency | Every 42 months — better | Every 54 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | R.L Machinery Industry Corp. | NAPCO Security Technologies |
In-app purchases
EU
No in-app purchases
CA4K
No in-app purchases
