2N® Mobile Key vs Leak Defense System
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
2N® Mobile Key
Transform your mobile phone into a secure digital key for your doors. This app utilizes advanced WaveKey technology for instant, reliable, and secure access. Choose from multiple convenient operation modes for seamless entry.
- Mobile phone as access credential
- Patented WaveKey technology
- AES encryption
- NFC door unlocking
- Multiple operation modes (Touch, Tap, Card, Motion)
- Unlimited free credentials
- Time-limited access
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Mobile Key 3 from 2N empowers you with the ability use your mobile phone as your access credential and the key to your doors. Our latest version introduces patented WaveKey technology to bring you unprecedented reliability, opening speed and solution security. WaveKey technology allows door opening to feel instant upon reader touch. Furthermore, it prevents unwanted door opening by static phones and attempts to ensure phones moving away from the reader won’t authenticate. Bluetooth credential security is guaranteed by government grade AES encryption over our proprietary channel. Benefit from the option of NFC door unlocking too, if your phone and 2N reader supports it. Used in combination with an appropriate 2N® IP Intercoms or Access Units, Mobile Key offers a convenient, secure and reliable keyless access solution. Operation modes include: ‘Touch mode’, which lets you open the door without removing your phone from your pocket or bag, simply by touching the reader. Enjoy a seamless and convenient access experience even if your hands are full. ‘Tap mode’, which allows you to trigger door opening form a greater distance by tapping the button in the app. Perfect for car park or garage access. ‘Card mode’, allowing you to authenticate by presenting your phone against the reader without need to unlock the screen Disabled by default. Requires ‘Tap mode’ enabling by reader admin and enabling in app. ‘Motion mode’, allowing authentication to be triggered via motion detected in the intercom’s camera. Requires configuration by reader admin and enhanced video license in reader. Other features include: Other features include: • Unlimited free credentials • Dynamic performance training • Door sensitivity settings • Vibration feedback • Time limited access • Simultaneously supported authentication modes • Manual sensitivity override per device Setup Instructions: • Download and install the app • Choose the authentication mode (‘Tap-in-app’ or ‘Touch’) in your Bluetooth enabled 2N® IP Intercom or Access Unit. • Add a new user to its directory and generate a pairing PIN code • Start pairing mode in the app and select the device you wish to pair (you must be within range of the device. For ‘Touch’ mode you may need to touch the device for it to become visible in the app) • Enter the pairing PIN code when prompted • After successful pairing, you may now enter the door with the app
Leak Defense System
This system detects plumbing leaks and provides remote water shut-off capabilities for homes, high-rises, or entire buildings. It acts as an emergency shut-off solution, offering advanced control over your water supply.
- Remote water shut-off
- Plumbing leak detection
- Emergency water shut-off
- Smart-home integration
- Control for homes, high-rises, and buildings
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The Leak Defense System is the industry leader in water leak shut off systems and smart-home water shut off valves. It's so advanced that you can turn off water to your home, a zone of a high-rise or the entire building with a touch of a button. Detects plumbing leaks and serves as an emergency water shut off too!
Screenshots
Verdict
The clearest difference is rating: 2N® Mobile Key at 3.8 against Leak Defense System's 3.0. 2N® Mobile Key also leads on review sentiment (38% vs 13%). Leak Defense System's advantage is update cadence (every 3 weeks vs every 3 months). On price, ratings volume, 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.
2N® Mobile Key holds the better App Store score, 3.8 against 3.0. Both are backed by a comparable volume of ratings — 37 and 21 respectively. Written reviews point the same way: 38% of 2N® Mobile Key's written reviews are positive against 13% of Leak Defense System's.
2N® Mobile Key ships an update every 3 months, Leak Defense System every 3 weeks. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.
| Parameter | 2N® Mobile Key | Leak Defense System |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (37 ratings) — better | 3.0 (21 ratings) |
| Positive reviews | 37.5% of reviews — better | 12.5% of reviews |
| Number of ratings | 37 — better | 21 |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 19 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | 2N TELEKOMUNIKACE a.s. | Calance |
Customer experience
2N® Mobile Key
Leak Defense System
In-app purchases
2N® Mobile Key
No in-app purchases
Leak Defense System
No in-app purchases
Questions
Is 2N® Mobile Key free?
Is Leak Defense System free?
Which has better reviews, 2N® Mobile Key or Leak Defense System?
Do 2N® Mobile Key or Leak Defense System have ads?
Which is updated more often, 2N® Mobile Key or Leak Defense System?
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