# BAS vs Plus4U Key

BAS and Plus4U Key are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BAS ships an update every 3 months, Plus4U Key every 6 months. The most recent releases landed on September 19, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | BAS | Plus4U Key |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/bas-ip-ukey/id1392976215/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 36.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | Free | — |
| Size | 26 MB | 87 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BAS-IP LP](https://appshunter.io/developer/1028291428) | [Plus4U Net a.s.](https://appshunter.io/developer/899103157) |

## What reviewers say

### BAS

[App page](https://appshunter.io/ios/app/bas-ip-ukey/id1392976215)

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.

**Highlights:** Use phone as mobile identifier, Open doors via outdoor panels/readers, Phone screen activation, In-app 'Open' button, Adjustable operating distances, Secure, uncopyable access

**Features:** Apple Wallet

**In-app purchases:** none


### Plus4U Key

[App page](https://appshunter.io/ios/app/plus4u-key/id6443866595)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BAS free?

BAS is free to download, with no in-app purchases.

### Is Plus4U Key free?

Plus4U Key is free to download, with no in-app purchases.

### Do BAS or Plus4U Key have ads?

Neither BAS nor Plus4U Key shows ads.

### Which is updated more often, BAS or Plus4U Key?

BAS ships an update every 3 months, and Plus4U Key every 6 months. Most recently, BAS was updated on September 19, 2026 and Plus4U Key on September 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*