Chase – automated invoice follow-up emails for freelancers
Stripe-integrated invoice follow-ups, but Freshbooks and Wave already have this built-in.

Simplicity-focused email platform, but Mailchimp and Beehiiv already own this space.
Small businesses, non-profits, local business owners
Mailchimp · ConvertKit · Beehiiv
So I’ve built Donbar, an easy-to-use email platform where the focus is SIMPLICITY. It is designed so you can send your first professional email in under 5 minutes.
Donbar includes all the features you actually need: – Easy Design – An intuitive email builder. – Email Tracking – Track opens and clicks. – Large File Support – Share files up to 1 GB. – Merged Tags & Contact Management – Simple but powerful ways to personalize.
Some of the best feedback I’ve received so far: "I usually need a day or two to get familiar with a new product, but with Donbar, I instantly 'knew' how it worked." My favorite was: "I expected Donbar to be easy, but I didn't expect it to be fun!"
Wondering what the power users think, Is simplicity a feature or a dealbreaker for you?
Would love your honest roasts and feedback.
Stripe-integrated invoice follow-ups, but Freshbooks and Wave already have this built-in.
$20 unlimited emails undercuts SendGrid, but the agent API is just documentation.
Own KumoMTA infrastructure beats reselling SES, but email-for-agents is getting crowded.
Solves the agent email gap with a simple API, competing directly with Resend and SendGrid.
Memento mori emails when calendar reminders and existing apps already do this.
Memento Mori newsletter with beautiful typography and a pay-to-unsubscribe joke.