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Getting started

Signing in with a magic link or Google

Hemma doesn't use passwords. There's nothing to remember, nothing to reset, nothing to leak. Two options instead: a one-tap link emailed to you, or your Google account. Both take less than a minute and you stay signed in for eight hours of activity.

The default option. Type your email, tap Send link, and Hemma emails you a button. Open the email, tap the button, and you're in. The link is single-use and expires after a short window — long enough to switch tabs, short enough to stay safe.

After tapping Send link, the screen confirms "Check your inbox" with the email you typed. If you typed the wrong address, "Use a different email" brings you back to the form.

The email itself is short. A heading, a button labelled "Sign in" (translated to your preferred language if you've signed in before), and the same link in plain text in case the button doesn't render in your email client.

02Google

If your Hemma account uses the same email as your Google account, "Continue with Google" is faster. One tap, the standard Google consent screen, and you're back in Hemma. No email round-trip.

You can mix and match: sign in with Google one day, magic link the next, with no setup. Hemma links them as long as the email matches.

03Staying signed in

Once you're in, Hemma keeps you signed in for eight hours of activity. Open Hemma, do something, and the clock resets. Walk away for a long lunch and come back — you're still signed in. Walk away for a day — you'll be asked to sign in again.

Sign-out lives behind your initials in the top-right corner. Tap them, scroll to the bottom of the dropdown, tap Sign out.

04When the email doesn't arrive

Magic link emails come from hello@hemma.app. If it's not in your inbox after a minute:

  • Check spam. First-time email from any address often lands there. Mark it as not-spam so future ones come through.
  • Check the address you typed. A typo means the link went somewhere else. Tap "Use a different email" and try again.
  • Make sure you have an account. Magic link only works for emails Hemma already knows: existing accounts, people with a pending invite, and people with an active share link. If none of those apply, accept your invite first or ask the person managing the project to invite you.

If you've waited a few minutes, checked spam, and confirmed your email, request a new link. Old links expire — newer ones replace them automatically.

05When Google sign-in won't go through

Two errors come up the most:

  • "Account not linked." You have a Hemma account under a different email. Sign in with that email's magic link instead, or contact whoever invited you to find out which address they used.
  • A Google error mid-flow. Usually a network blip. Close the tab, reopen Hemma, and try again. If it still fails, the magic link option is always there as a fallback.

The login screen shows the specific error in red so you don't have to guess which one happened.