# Kuartus vs Sensorberg One Access

The clearest difference is device support: Kuartus at 3 against Sensorberg One Access's 1. Kuartus also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Kuartus ships an update weekly, Sensorberg One Access fortnightly. The most recent releases landed on September 16, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | Kuartus | Sensorberg One Access |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sensorberg-one-access/id6449091483/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | — | Free |
| Size | 37 MB | 82 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Keemetrix Systems, S.L.](https://appshunter.io/developer/1597719609) | [Sensorberg GmbH](https://appshunter.io/developer/882711180) |

## What reviewers say

### Kuartus

[App page](https://appshunter.io/ios/app/kuartus/id6445953704)

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

**In-app purchases:** none


### Sensorberg One Access

[App page](https://appshunter.io/ios/app/sensorberg-one-access/id6449091483)

This application allows your smartphone to unlock buildings and control access points equipped with a specific solution. Manage all your access needs, view and unlock doors, and favorite frequently used locations for quick access.

**Highlights:** Manage all access control needs, Unlock doors from the app, Search for access points, Favorite frequently used doors, Dynamic theming

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Kuartus free?

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

### Is Sensorberg One Access free?

Sensorberg One Access is free to download, with no in-app purchases.

### Do Kuartus or Sensorberg One Access have ads?

Neither Kuartus nor Sensorberg One Access shows ads.

### Which is updated more often, Kuartus or Sensorberg One Access?

Kuartus ships an update weekly, and Sensorberg One Access fortnightly. Most recently, Kuartus was updated on September 16, 2026 and Sensorberg One Access on August 27, 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.*