Signing in to Mnemonica
Sign in with an email link, Google, Apple, a passkey or the Mnemonica app where biometrics is enabled, on the web and on your phone.
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Mnemonica has no passwords and no multi-factor authentication (MFA). You sign in with a one-time link that Mnemonica sends to your email, or with Google or Apple. Then you add a strong method: a passkey on a computer, or the Mnemonica app on your phone or tablet, where you enable biometrics. After that, you sign in with one tap.
If you used a password or MFA before 17 October 2026: on that date, Mnemonica deletes your password and removes all your MFA methods. You do not need codes or backup codes any more. You can delete the Mnemonica entry from your authenticator app. Your email address does not change: it is still your username.
Ways to sign in
Each way to sign in gives a basic or a strong session.
| How you sign in | What you need | Session |
|---|---|---|
| Email link | Your inbox | Basic |
| Google or Apple | A Google or Apple account that you linked to Mnemonica | Basic |
| Passkey | The way you unlock your device: fingerprint, face or PIN | Strong |
| Mnemonica app | The app on your phone where biometrics is enabled | Strong |
| Phone and QR code | The app where biometrics is enabled, to scan the QR code | Strong |
Some Projects are marked Strong: they open only to a strong session. See Strong Projects.
Sign in with an email link
You can always use the email link. You need only your inbox.
Web app
Type your email address
On the Passwordless login tab, type the email address of your Mnemonica account in Email Address. Then click Send me a sign-in link.
Mnemonica sends you an email with a link.
Check your inbox
Mnemonica signs in the device where you open the link.
The link works one time only, and only for 15 minutes.
Click the link
A Mnemonica page opens. You are in, with a basic session.
Mobile app
Open the app
Open the Mnemonica app on your phone.
Type your email address
Type the email address of your Mnemonica account in Email. Then tap Send me a sign-in link.
Mnemonica sends you an email with a link.
Check your inbox
Mnemonica signs in the device where you open the link. If you open the email on a computer, the computer signs in, not the app.
The link works one time only, and only for 15 minutes.
Tap the link
You are in, with a basic session.
Sign in with Google or Apple
If you linked a Google or an Apple account to Mnemonica, click Sign in with Google or Sign in with Apple. In the app, tap the same button. This is also a basic session.
Sign in with a strong method
If you have added a strong method to your account, use it to sign in. You get a strong session at once.
You can use one of two strong methods:
- A passkey. You keep a passkey on your own computer. You use it in place of a password.
- The Mnemonica app on your phone where biometrics is enabled. On the phone, the app keeps you signed in with a strong session. On a computer, you scan a QR code with the app, and you are in.
Web app with passkey
Use this on your own computer.
- Go to mnemonica.io.
- Click Use passkey.
- Unlock with your fingerprint, your face or your PIN, as you unlock the computer.
You are in, with a strong session.
Web app with QR code
Use this when you have no passkey on the computer, or when the computer is not yours.
Before you start, install the Mnemonica app on your phone. If your account already has a passkey, link the app first: see Add a device. Then, in the app, tap Enable biometrics. Biometrics uses the way you unlock your phone: your fingerprint, your face or your PIN. If biometrics is off, you cannot sign in with the QR code. See Add your first strong method.
- On the computer, go to mnemonica.io.
- Click the Mnemonica App tab.
- On your phone, open the Mnemonica app and unlock it.
- On the Home page of the app, tap the QR code button. It is the round button at the bottom right.
- Scan the QR code on the computer screen.
You are in on the computer, with a strong session.
If you see Code expired, click Get a new code. Then scan the new QR code.
Mobile app
If you enabled biometrics, open the app and unlock it with your fingerprint, your face or your PIN. You are in, with a strong session. You do not have to do anything more.
When biometrics is enabled, the app keeps you signed in for 365 days.
Basic and strong sessions
To learn how you get a strong session, what each session lets you do and what to do if you lose a device, read Basic and strong sessions.
Do you need help?
If you cannot sign in, write to support@mnemonica.com.
Related articles
Passkey requirements
Passkeys require a minimum version of the operating system and of the browser.
New Mnemonica sign-in: guide for Guests
From 17 October 2026, you sign in to Mnemonica in a new way.
Registering your Mnemonica account
Somebody has invited you to a Project. This page tells you what happens next. It takes about a minute.
Add a passkey
Add a passkey on your computer or your phone, open Strong Projects with your fingerprint, your face or your PIN, and pair the Gate.