Stripe for Gmail vs FirstOfficer: What are the differences?
Developers describe Stripe for Gmail as "A gmail extension that shows customer's Stripe information alongside the emails they send you". The Stripe for Gmail extension lets you see which emails are from your Stripe customers. This extension matches email addresses in Gmail to the email address of customers in Stripe. Whenever a match is found, an indicator will show next to every email in any list of emails. When you open a conversation in Gmail, the sidebar will fill with a summary of Stripe customer information. On the other hand, FirstOfficer is detailed as "SaaS Metrics & Analytics for Stripe". It accurately displays CLTVs for all of your plans, it even lets you dig into values of lost customers (Total Contract Value, TCV).
Stripe for Gmail and FirstOfficer belong to "SaaS for Stripe" category of the tech stack.
Stripe for Gmail is an open source tool with 155 GitHub stars and 17 GitHub forks. Here's a link to Stripe for Gmail's open source repository on GitHub.