Help us test Marginborn.

Marginborn is in testing on Android and iPhone. Tell us which phone you use, and we’ll invite you to the test.

This form needs JavaScript. You can email hello@marginborn.com instead. Tell us your phone and the email of your Google Account (Android) or Apple Account (iPhone), and we’ll add you.

Your phone

Android iPhone

EmailGoogle Account emailApple Account email

On Android, the Google Account you use on Google Play. On iPhone, your Apple Account email. The one you use on Google Play. We can only invite that account. The one you use for the App Store. Apple sends the TestFlight invitation there.

Phone model (optional)

What do you write or produce? (optional)

For example: essays, a newsletter, research, client reports.

I agree that Marginborn may give my email address to Google Play or Apple TestFlight to invite me to test the app, and may contact me about testing, including follow-up research. I can withdraw at any time.

What happens next

On Android

We add your Google Account to the test and email you a link.
You open the link on your phone and install Marginborn from Google Play.
You use the app for at least 14 days without leaving the test. Google asks for this before a new app can go on Google Play.
You tell us what works and what doesn’t, with “Send feedback” in the app.

On iPhone

We add your email to the test. Apple emails you an invitation from TestFlight.
You install TestFlight from the App Store, then open the invitation on your iPhone to install Marginborn.
You use the app for at least 14 days.
You tell us what works and what doesn’t, with “Send feedback” in the app.