# ACR vs WuTool

The clearest difference is iOS requirement: ACR at 13.0 against WuTool's 15.1. 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.

ACR ships an update every 3 months, WuTool every 2 months. The most recent releases landed on June 1, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | ACR | WuTool |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 33 MB | 65 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SYSTEC INTELLIGENT TECHNOLOGY (TIANJIN) CO., LTD.](https://appshunter.io/developer/1517551292) | [Wiesemann & Theis GmbH](https://appshunter.io/developer/1221934878) |

## What reviewers say

### ACR

[App page](https://appshunter.io/ios/app/acr-bt/id1550537404)

Manage your standalone access control device using Bluetooth. This app allows for data management, device synchronization, and uses your smartphone as a virtual key for visitor authorization.

**Highlights:** Access control data management, Device data synchronization, Smartphone as virtual key, Visitor authorization, Bluetooth connectivity

**In-app purchases:** none


### WuTool

[App page](https://appshunter.io/ios/app/wutool/id6744746697)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ACR free?

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

### Is WuTool free?

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

### Do ACR or WuTool have ads?

Neither ACR nor WuTool shows ads.

### Which is updated more often, ACR or WuTool?

ACR ships an update every 3 months, and WuTool every 2 months. Most recently, ACR was updated on June 1, 2026 and WuTool on September 19, 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.*