Aakshu

You should give DronaHQ a spin for this. I have used it to build a simple frontend app, connect my sales lead maintained on a google sheet and streamline some activities (assigning leads, edit information,send email, track payment/subscription) They offer ready connectors so you can plug it to your data source of choice. I am pretty satisfied with the tool (https://www.dronahq.com)

You should also consider DronaHQ, https://www.dronahq.com/

Once developed, app can be deployed both in mobile and as a web app. Notifications and Emails are easy to set up with ready connectors!

Interesting, Is this a nocode tool?