"This gave us a huge boost"

Happy New Year! I hope you had a restful break.

We've been number crunching, and the data is super encouraging: newsletter bundles work for all involved.

In our testing, 97% of people who signed up to a bundle subscribe to every newsletter in it—even though they can deselect any they don't want. In a growth collaboration, when one of you wins, all of you win.

"We grew our newsletter subscribers by 10% through our first [Trustfund] collaboration alone," one of our users told me recently. "This gave us a huge boost." (I'm preparing a post with some more insights from creators, stay tuned.)

Here's how you can make it work for you

Bundle with purpose. Partner with journalists or creators who share your audience but offer them something that is distinct from what you do. The overlap creates the opportunity; the difference creates the growth.

Collaborate across formats. If your main format is a newsletter, bundle with someone who also has an email list but publishes on Youtube or Instagram Reels. Email is the most powerful relationship builder for all creators, not just newsletter writers.

Do it often, don't overthink. Spin up bundles whenever opportunity arises. Joining someone for a podcast in their episode? Spin up a bundle to give listeners and viewers a way to subscribe to both of you. Need a growth boost? Spin up a temporary bundle with someone in a similar situation. You can run unlimited bundles simultaneously.

What we've shipped to make this easier:

• Auto-sync with your newsletter tool: New signups flow directly into your list, no exports needed.
• Improved landing pages: Small changes to improve conversion on bundle landing pages.
• Large bundles: We've removed the 3-newsletter limits for newsletter bundles.

So, in 2026, stay fully independent, but unite in growth. Trustfund lets you reach audiences on platforms you're not even present on when you collaborate with creators who are.

Not sure where to start? Book time with me and I'm happy to help.

Trustfund remains free while we're in beta. Thank you for building this with us last year, and I can't wait to build even more in 2026.

Michaël