BAS vs Plus4U Key
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BAS
Transform your smartphone into a digital key for seamless access. Open doors, gates, and barriers using your device with various activation methods and adjustable ranges. Enjoy enhanced security and convenience over traditional access cards.
- Use phone as mobile identifier
- Open doors via outdoor panels/readers
- Phone screen activation
- In-app 'Open' button
- Adjustable operating distances
- Secure, uncopyable access
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BAS-IP UKEY is an application that allows you to use your mobile device as mobile identifier. You can open doors with the help of BAS-IP outdoor panels or readers using your mobile device, much easier than with common keychains or access cards. BAS-IP outdoor panels and readers, equipped with a special BLE (Bluetooth Low Energy) module, are best for: · Multi-apartment buildings · Residential complexes · Offices · Parking lots · Warehouses and other utility rooms You can configure doors opening from your mobile devices following ways: · Phone screen activation · 'Open' button touching in mobile application You can select one of three operating modes for each outdoor panel and reader: · Door (operating distance - up to 1 m) · Touch (operating distance - up to 2 cm) · Gates/barrier (adjustable distance from 0.5 m to 10 m) Advantages of using this mobile identification technology over the common keychains or access cards: 1. Access cards are more often forgotten or lost compared to mobile phones. 2. Getting the phone out of your pocket or bag is much faster than finding the card access in a wallet or the right keychain from the bunch of keys. 3. To open a barrier or gate for entering the office or house territory, you do not need to open a window and attach a keychain or access card to the reader; everything can be done within the application in the comfort of your car. 4. Mobile identifier cannot be copied. Only people who keep mobile device can unlock the lock. These exclude entry to the territory with cloned access cards.
Plus4U Key
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Plus4U Key enables secure and convenient login to the Plus4U system
Screenshots
Verdict
The clearest difference is rating: BAS at 4.3 against Plus4U Key's 1.0. BAS also leads on ratings volume (3 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.
BAS holds the better App Store score, 4.3 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
BAS ships an update every 3 months, Plus4U Key every 6 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | BAS | Plus4U Key |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 36.2% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 3 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.1 — better | 13.0 |
| Further details — not scored | ||
| Size | 26 MB | 87 MB |
| Age rating | 4+ | 4+ |
| Developer | BAS-IP LP | Plus4U Net a.s. |
In-app purchases
BAS
No in-app purchases
Plus4U Key
No in-app purchases
