# Building 2 separate apps and having them communicate with each other (Telemedicine app patient and physicians side) **URL:** \ **Category:** Ask for Help\ **Created:** [September 24, 2022, 4:31pm UTC](https://community.glideapps.com/t/building-2-separate-apps-and-having-them-communicate-with-each-other-telemedicine-app-patient-and-physicians-side/50090 "2022-09-24T16:31:41Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![Darren\_Murphy](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/darren_murphy/32/47326_2.png) [@Darren\_Murphy](https://community.glideapps.com/u/Darren_Murphy)\ **Post date:** [September 25, 2022, 2:09am UTC](https://community.glideapps.com/t/building-2-separate-apps-and-having-them-communicate-with-each-other-telemedicine-app-patient-and-physicians-side/50090/4 "2022-09-25T02:09:57Z")
The easiest way is to start building your first App, and once you get it to a certain point, then duplicate it. At that point Glide will prompt you to either “Copy the sheet” or “Keep same sheet”. If you choose the latter, then both Apps will be sharing the same data source. It’s also possible to start your second App from scratch and connect it to the same data source as your first App. However, I would recommend the “build one then copy” approach over this, as when you copy an existing App will will get all the screens and computed columns that were created in the first App. So you wouldn’t be starting with a blank slate. I gave a longer answer to a similar question below: > [@Relationship and References Created in Glideapp Table](https://community.glideapps.com/t/relationship-and-references-created-in-glideapp-table/49119/5): > > The way your question is posed is a little confusing, so I won’t try and answer it directly. Instead I’ll explain how it works, and maybe that will help. First thing is that it’s important to understand the difference between Basic and Computed columns. Maybe you already do, but it’s vital in this context so I’ll explain it anyway. Basic Columns are those columns that contain actual data, as opposed to data that’s calculated from other columns. Text, Email, Image, Date/time are all examples o… --- _[View the full topic](https://community.glideapps.com/t/building-2-separate-apps-and-having-them-communicate-with-each-other-telemedicine-app-patient-and-physicians-side/50090)._