# ColBlue

> Securely unlock Millennium Bluetooth reader doors with your phone. (iPhone/iPad app by Millennium Group Inc..)

- Source: https://appshunter.io/ios/app/colblue/id1621727466 (this page in markdown: same URL + `.md`)
- Developer: [Millennium Group Inc.](https://appshunter.io/developer/1459017133)
- Category: Utilities
- Price: Free
- Rating: 1.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 89 MB
- Released: 2022-06-15
- Data updated: 2026-08-26
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/colblue/id1621727466/reviews.md

## What is ColBlue?

ColBlue App is a simple, secure way to quickly open doors connected to Millennium Bluetooth readers directly from your phone.

Simple to use, fast and secure, ColBlue App is a good replacement for your access cards and keys!

## Key features

- Open doors with phone
- Uses Bluetooth readers
- Secure access
- Fast unlocking
- Replaces access cards


## Frequently asked questions about ColBlue

### What is ColBlue used for?

ColBlue is used to open doors that are connected to Millennium Bluetooth readers directly from your smartphone. It acts as a digital replacement for physical access cards and keys.

### Is ColBlue free to use?

Yes, ColBlue is available for free. The app is listed as 'Free' and does not mention any in-app purchases.

### What devices is ColBlue compatible with?

ColBlue is a mobile application designed for smartphones. It is suitable for users aged 4 and above.

### How secure is ColBlue?

The app is described as a secure way to open doors. It utilizes Bluetooth technology for access control.

### When was ColBlue last updated?

The latest version of ColBlue, 1.1, was last updated on April 21, 2023. The app was initially released on June 15, 2022.

### What is the user rating for ColBlue?

ColBlue has a rating of 1.0 stars based on 1 rating. This indicates a very limited user feedback at this time.

### Does ColBlue require an internet connection?

The description does not explicitly state if an internet connection is required. However, Bluetooth functionality typically operates independently of Wi-Fi or cellular data for direct device communication.

## Version history (last 3 releases)

### 1.2 — 2026-08-26

Minor updates and improvements for a better experience.

### 1.1 — 2023-04-21

Legacy reader wiring support added. Simple app registration.

### 1.0 — 2022-06-15

No release notes.

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## More apps by Millennium Group Inc.

- [UMC Client](https://appshunter.io/ios/app/umc-client/id1459017134)
- [Ultra Mobile Client](https://appshunter.io/ios/app/ultra-mobile-client/id1633315534)

All apps by Millennium Group Inc.: https://appshunter.io/developer/1459017133

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*