# CA4K vs BAS

The clearest difference is rating: BAS at 5.0 against CA4K's 1.1. BAS also leads on review sentiment (42% vs 0%) and update cadence (every 6 weeks vs every 54 months). CA4K's advantage is ratings volume (10 vs 3) and iOS requirement (11.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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, 5.0 against 1.1. Both are backed by a comparable volume of ratings — 10 and 3 respectively. Written reviews point the same way: 0% of CA4K's written reviews are positive against 42% of BAS's.

CA4K ships an update every 54 months, BAS every 6 weeks. The most recent releases landed on September 22, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | CA4K | BAS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.1 (10 ratings)](https://appshunter.io/ios/app/ca4k/id1491432558/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/bas-ip-link/id1554833962/reviews)** |
| Number of ratings | **10** | 3 |
| Positive reviews | 0.0% of reviews | **41.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 54 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 0 MB | 63 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [NAPCO Security Technologies](https://appshunter.io/developer/397342490) | [BAS-IP LP](https://appshunter.io/developer/1028291428) |

## What reviewers say

### CA4K

[App page](https://appshunter.io/ios/app/ca4k/id1491432558)

This app provides mobile access control for enterprise entry points like doors and elevators. Users can customize their approved access points and gain entry without physical credentials. It also offers optional administrator functions for system management.

**Highlights:** Mobile access to doors and elevators, Customize approved entry points, Log access without physical credentials, Administrator functions for system management, Enterprise electronic access control

**Features:** macOS Compatibility

**In-app purchases:** none


### BAS

[App page](https://appshunter.io/ios/app/bas-ip-link/id1554833962)

Manage your building access remotely. Receive video calls from intercom panels, unlock doors via Bluetooth, call elevators, and issue guest passes with QR codes or access links. Supports multiple properties and family member invitations.

**Highlights:** Receive video calls from outdoor panels, Unlock doors via Bluetooth, Call elevators, Issue guest passes (QR codes, access codes, links), Add multiple properties, Invite family members, Access call archive

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CA4K free?

CA4K is free to download, with no in-app purchases.

### Is BAS free?

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

### Which has better reviews, CA4K or BAS?

BAS is rated higher. CA4K averages 1.1 out of 5 from 10 ratings, while BAS averages 5.0 from 3 ratings.

### Do CA4K or BAS have ads?

Neither CA4K nor BAS shows ads.

### Which is updated more often, CA4K or BAS?

CA4K ships an update every 54 months, and BAS every 6 weeks. Most recently, CA4K was updated on September 22, 2026 and BAS on September 16, 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.*