Posted May 20, 2025

MailSynth Public Beta

AI that turns inbox overwhelm into calm by intelligently organizing, labeling, and summarizing emails

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Welcome to Betabound!

It looks like you're new here. Let's go through the basics!
New Beta Opportunities Every Day

We collect, organize, and offer great beta testing opportunities. We don't publish news or rumors. If it's on our list, you can sign-up, apply, or test today.
Choose a Filter

We put together some of our most popular beta filters, so you can easily get to the tests you're most interested in.
Create a Custom Filter

If you'd like to create your own custom view, you can do that here. We'll even save it for your next visit.
Become a Member

Members of Betabound get early and exclusive beta opportunities. It takes about 5 minutes to join and is completely free.
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Submit a Beta

We try our best to find all the beta tests out there, but if you find or hear about one that we've missed you can let us know here!
Learn More

We have a ton of additional resources and links here, such as our blog!