NSP Security vs Zennio Key
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NSP Security
Unlock doors using your smartphone via Bluetooth. Securely manage access rights for users and track entry events in real-time. This system integrates with existing RFID readers for comprehensive control.
- Unlock doors with smartphone
- Bluetooth Low Energy (BLE) access
- Securely issue and revoke access rights
- Real-time event logging and transmission
- Integrates with RFID readers
- User-friendly mobile application
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NSP’s Mobile Access, using Bluetooth Low Energy (BLE) allows doors to be opened with a smartphone, potentially removing the need for a card or fob. NSP’s Mobile Access securely issues, revokes the access rights you grant your users, and the access can be delegated across NSP range of RFID control readers throughout your accommodation facility or commercial premises in the same way a traditional Access Control System would be managed. The NSP App will collect data from each Electronic Lockset that logs each ‘event’ from each door, which is transmitted from the User’s phone to the server – safely and securely updating the controlling PC in real time. The NSP Mobile Access System is controlled by each user / Resident via the NSP Mobile App (Application) which is user friendly, intuitive, and can be incorporated in to an existing App if where required.
Zennio Key
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Zennio Key app allows you to download in your smartphone the Bluetooth key to access your room during your stay in a hotel with the Zennio Access Control system installed: Z-Access. Zennio Key enables contactless access, completing the check-in process already available in many hotels where the guest is not required to personally go to reception to pick up the room key. This App is only compatible with Zennio Access control systems.
Screenshots
Verdict
The clearest difference is iOS requirement: NSP Security at 11.0 against Zennio Key's 15.0. 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.
NSP Security ships an update every 6 weeks, Zennio Key every 3 weeks. The most recent releases landed on July 25, 2026 and August 18, 2026 respectively.
| Parameter | NSP Security | Zennio Key |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (3 ratings) — better | — |
| Positive reviews | 8.6% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 34 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | NSP Europe Ltd | Zennio |
In-app purchases
NSP Security
No in-app purchases
Zennio Key
No in-app purchases
Questions
Is NSP Security free?
Is Zennio Key free?
Do NSP Security or Zennio Key have ads?
Which is updated more often, NSP Security or Zennio Key?
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