# Glide app that does calculations for multiple users

**URL:** <https://community.glideapps.com/t/glide-app-that-does-calculations-for-multiple-users/29661>\
**Category:** Ask for Help\
**Created:** [July 28, 2021, 2:57pm UTC](https://community.glideapps.com/t/glide-app-that-does-calculations-for-multiple-users/29661 "2021-07-28T14:57:08Z")\
**Posts on this page:** 5\
**Page:** 2

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**Author:** ![Jeff\_Hager](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/jeff_hager/32/43_2.png) [@Jeff\_Hager](https://community.glideapps.com/u/Jeff_Hager)\
**Post date:** [August 2, 2021, 6:44am UTC](https://community.glideapps.com/t/glide-app-that-does-calculations-for-multiple-users/29661/21 "2021-08-02T06:44:31Z")

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You sum rows using a rollup column.

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**Author:** ![ZirdvdW](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/zirdvdw/32/18140_2.png) [@ZirdvdW](https://community.glideapps.com/u/ZirdvdW)\
**Post date:** [August 2, 2021, 9:09am UTC](https://community.glideapps.com/t/glide-app-that-does-calculations-for-multiple-users/29661/22 "2021-08-02T09:09:23Z")

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apologies, how would you sum columns

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**Author:** ![Eric\_Penn](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/eric_penn/32/73888_2.png) [@Eric\_Penn](https://community.glideapps.com/u/Eric_Penn)\
**Post date:** [August 2, 2021, 12:30pm UTC](https://community.glideapps.com/t/glide-app-that-does-calculations-for-multiple-users/29661/23 "2021-08-02T12:30:35Z")

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The rollup column does exactly that, it sums the column.

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**Author:** ![ZirdvdW](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/zirdvdw/32/18140_2.png) [@ZirdvdW](https://community.glideapps.com/u/ZirdvdW)\
**Post date:** [August 3, 2021, 9:41am UTC](https://community.glideapps.com/t/glide-app-that-does-calculations-for-multiple-users/29661/24 "2021-08-03T09:41:01Z")

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@ThinhDinh @AyS_0908 @Darren_Murphy  
I have thought about the problem and want to know if the following is possible?

1. Force users to use emails to use the app (thus having a way to get a user specific id)
2. Have glide push down a specific users scores to the google sheet (maybe a column for each users’ scores)
3. Use lookups/array formulas in google sheets to do user specific calculations
4. Return user specific results to the app interface

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**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:** [August 3, 2021, 10:57am UTC](https://community.glideapps.com/t/glide-app-that-does-calculations-for-multiple-users/29661/25 "2021-08-03T10:57:18Z")

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What you describe there can be done, and should work. However, I would encourage you to persist with keeping the calculations within Glide, as it will make for a much better user experience. From what I’ve seen in the videos that you’ve shared, I believe it’s perfectly doable, but it probably involves using a few Glide techniques that you might not be familiar with (yet). I don’t have time now to go into specific details, but somebody else might chip in.

[Previous page](https://community.glideapps.com/t/glide-app-that-does-calculations-for-multiple-users/29661.md?page=1)