Best App to find out how customer heard about you?

[Steri-Stand]

What App is the best to use when customer checks out to ask them where they heard about your store?

[Strawwool]

Also interested 

[binal_identix]

Hello @Steri-Stand & @Strawwool,

Hope you both are doing well.

You can use the iCart cart drawer cart upsell app in this case, and use the Survey widget of this app in that you can ask your customer about where they heard about your store.

Also, you can give a discount on that, if they fill the survey then they'll get a discount.