Plus4U Key vs Prezlock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Plus4U Key
This utility app provides a secure and convenient way to log into the Plus4U system. It simplifies access to your Plus4U account with enhanced security features.
- Secure login to Plus4U
- Convenient access
- Enhanced security
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Plus4U Key enables secure and convenient login to the Plus4U system
Prezlock
Control and manage Bluetooth-enabled locks directly from your smartphone, eliminating the need for physical keys. Securely lock, unlock, and share access with friends and family, while tracking usage history and battery levels.
- Keyless locking and unlocking via smartphone
- Manage multiple locks individually
- Share and revoke access with time limits
- Track GPS location and usage history
- Monitor lock battery levels
- High-level encryption for security
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*Manage and operate your Prezlock by your smartphone and eliminate the use of keys. *The Prezlock app is used to operate and manage Bluetooth enabled Prezlock with these features: Locking and unlocking: Once you download the Prezlock app, you can simply use your smartphone to lock and unlock your locks without using a key. The app utilizes high level ACE 128-bit encryption and Bluetooth 4.0 technology to control the locks with maximum security. Managing locks: The app can add and delete locks off the system with ease by following simple instructions. The app can individually manage numerous locks at the same time for easy management. Sharing Access: Share or revoke access of your locks with your family and friends using the app and your phone. You can set time limits and number of lock openings on the apps by either sending a shared code to their own Prezlock app, or just simply send them an encrypted password for combination opening. Each lock can be tailored individually for accessibility according to date, time, or individual guest usage. You may grant full time access to your spouse or family member, while setting a designated time limit use for a temporarily guest. GPS location and usage history: Track the location your lock is being used via the app’s GPS locating system as well as to monitor locking and unlocking activities by each identified individual guest, utilising the app’s history function. Battery Level: The app shows the battery level of the lock once connected with the lock.
Screenshots
Verdict
The clearest difference is rating: Prezlock at 1.8 against Plus4U Key's 1.0. Prezlock also leads on ratings volume (8 vs 1). 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.
Prezlock holds the better App Store score, 1.8 against 1.0. That said, the two scores are not equally well evidenced: Prezlock has 8 ratings behind it against 1, so its average is the more settled of the two.
Plus4U Key ships an update every 6 months, Prezlock every 9 months. Both last shipped on November 3, 2026.
| Parameter | Plus4U Key | Prezlock |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 1.8 (8 ratings) — better |
| Positive reviews | — | 14.3% of reviews |
| Number of ratings | 1 | 8 — better |
| Update frequency | Every 6 months — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 87 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Plus4U Net a.s. | Innova Ideas Ltd |
In-app purchases
Plus4U Key
No in-app purchases
Prezlock
No in-app purchases
