NSP Security vs DeterAlert
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.
DeterAlert
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Deteralert is a personal protection app that can prevent attacks by clearly announcing and visibly showing potential attackers that his or her image has been sent to friends, giving timed, dated and located photographic evidence. Privacy policy can be found here: https://deteralert.com/privacy Terms and conditions can be found here: https://deteralert.com/terms The Standard End User License agreement can be found here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: NSP Security at none against DeterAlert's 4. NSP Security also leads on update cadence (every 6 weeks vs every 20 months) and device support. On price 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. DeterAlert sells 4 in-app purchases, starting at $0.99 per month. NSP Security asks for nothing beyond the download.
NSP Security ships an update every 6 weeks, DeterAlert every 20 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.
| Parameter | NSP Security | DeterAlert |
|---|---|---|
| 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 — better | Every 20 months |
| Ads | No | — |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | — |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 34 MB | 23 MB |
| Age rating | 4+ | 17+ |
| Developer | NSP Europe Ltd | Deteralert Limited |
In-app purchases
NSP Security
No in-app purchases
DeterAlert
- Monthly Subscription$0.991 Month
- 3AlertPack$2.99
- DeterAlert 10 Pack$7.99
- 10AlertPack$9.99









