iPhone Screenshots


Hi there - we’re Cobu and it’s great to meet you!

It’s our passion and mission to power genuine community in apartment buildings like yours. We love it so much that it’s part of our name; Cobu is short for “Community Builders!”

We transform apartment buildings into places of belonging, personal growth and welcoming. Our app is a huge engagement component for your community's growth. Our app works together with our unique experiences that take place in your building and the lovely local businesses we find in neighborhood. The app makes it easy to RSVP, to save experience details on your personal calendars, to share discounts (perks!) for shops around your block, and connect to your community. It's colorful and playful and definitely a conversation starter!

Download today to get to know your community and help it grow!

What’s New

Version 2.0.3

Fixed performance issues with 2.0 release
- Error preventing users from submitting event feedback
- Fixed issue causing app to error silently
- UI/UX improvements

Ratings and Reviews

4.7 out of 5
29 Ratings
29 Ratings
maryengelship ,

This is my community

Thank you Doorbell for providing such an incredible community at my building here in Boston. Your team has made me finally belong in this city where I have lived for 3 years without really knowing anyone. I can’t tell you how great and proud it feels to live in a dorbell building

Nixuz ,

Living in a Doorbell building is the best

Thank you so much for making us feel at home every week!!!

Worcjoe71 ,

Doorbell is so perfect

Has transformed my life in the city. Thank you so much for bringing true community to my apartment building!


Doorbell Inc.
15.1 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Spanish
Age Rating
Rated 4+
© 2018 Cobu.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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