Email Verification Tool is an add-on that allows bulk email verification directly on Google Sheets where you have contacts collected.
We are working on a new big project and need money to invest in it.
You need to pay for a server — $10/month and provide customer support.
With a free account, a user can get 200 free verifications at the beginning and 50 per day after that. If he needs more, he can choose the amount he wants to increase that quota by. It is a one-time payment without the expiration date for the purchased quota:
The main source of customers is an organic search via Google Add-on Marketplace. We also built a website with great performance to get customers from SEO channel.
The future owner can invest more money in SEO and partner with blogs and courses which cover Google Spreadsheets automation.