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Rhombus Key

Rhombus Key

by Rhombus Systems, Inc.

72 ratings
27 reviews
💼 Business
🔧 Utilities
Free

Details

Released
June 30, 2023
Updated
October 27, 2026

Background Location Access

Developer

Rhombus Systems, Inc.
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Rhombus Key screenshot #1 for iPhone
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Rhombus Key screenshot #3 for iPhone
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About

Securely unlock doors using your smartphone, eliminating the need for physical keys or keycards. This app offers fast building access, seamless badging, and the ability to save favorite doors for quick navigation. It supports multi-location access with a single login.

✓Secure mobile credentials for building access
✓Fast and seamless badging
✓Save favorite doors for quick access
✓Multi-location access with one login
✓Compatible with Rhombus Access Control
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+1

What's New in Rhombus Key

1.3.0

October 27, 2026

• New: an EU Login option on the login screen for organizations hosted in the EU region. • Magic links and passkeys now work for EU accounts. • Magic links now open the app correctly when it isn't already running.

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User reviews

Most RecentHighest RatedLowest Rated

Location settings

Allow app to work with location settings set to While using the app. Currently it only works with location settings set to Always on and it checks ALWAYS.
WWildWeasel24

Terrible

One of the worst apps I’ve had the displeasure of using. It’s awesome, when it works. Unfortunately, the app constantly bugs you about having your location on at all times for pointless features that drain battery life like crazy. Also have had issues with giving access to non-admin accounts, very buggy. Overall, a good idea with some serious work needed on basic features and user experience.
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GGriffin55555

Very heavy Handed

Requires access to location data always, bluetooth and health data.
HHeidisa

Great App!

Works great and easy to use!
Nnwnwnw91

Intuition and easy to use!

Pretty easy to use as an employee of a company that uses Rhombus
IHI only review apps I hate
See 22 more reviews

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FAQ

What is Rhombus Key used for?

Rhombus Key is used to securely unlock doors straight from your smartphone, replacing physical keys, keycards, and badges for building access.

How does Rhombus Key work?

It provides fast and secure building access with mobile credentials. You can unlock doors by simply waving your phone or using it for seamless badging.

Can I access multiple locations with Rhombus Key?

Yes, Rhombus Key supports multi-location access across all your doors with a single login, making it convenient for users who manage or access multiple sites.

What devices is Rhombus Key compatible with?

Currently, Rhombus Key is listed as compatible with iPhones. Check the app store for the most up-to-date device compatibility information.

Is Rhombus Key free to use?

Yes, Rhombus Key is available for free. There are no in-app purchases or advertisements mentioned, suggesting a completely free experience.

How often is Rhombus Key updated?

The latest version is 1.3.0, released on October 27, 2026. While this indicates a recent update, the frequency of future updates is not specified.

What is the age rating for Rhombus Key?

Rhombus Key has an age rating of 4+, making it suitable for a wide range of users. This rating typically indicates content that is generally suitable for all ages.

What is Rhombus Access Control?

Rhombus Access Control is a modern approach to building management that Rhombus Key is compatible with. It offers centralized visibility, control, seamless remote access, and scalability.