No, if you are using Airtable Free Plan then after 1000 request, app will not work. You can use [Paid $4] ProEmailer Extension | Send Single/Bulk Email(s) Using Personal Single/Multiple Gmail Id(s) | Send Any Type Of Attachment | Free Unlimited Email OTP Solution | for unlimited email otp and [PAID] Ultimate Google Spreadsheet Extension Combo With/Without Image Hosting (An Alternative To Airtable) for Google Spreadsheet Backend for free unlimited usages. Using these extensions you can create signup & login easily and other data transfers.