Memo is your memory on WhatsApp: you write to it or send it something, and Memo saves it, sorts it and reminds you when it is due. This page explains, with no fine print, what information it needs to do that and what control you have over it. Last updated: October 4, 2026.
Memo is developed and operated by Sebastián Zanca Ahumada, as an individual, for the personal use of the people who use it over WhatsApp or the iOS app. You can send any question about this policy or your data straight to Memo on WhatsApp, or to the contact email at the end of this page.
Memo identifies you by your phone number — there is no separate username or password. Depending on how you use it, it stores:
Memo never asks for your password to social networks or other services. The only "access code" that exists belongs to Memo itself; you create it and you can regenerate it whenever you want from Settings.
Connecting your Google account is optional and it is your decision, from Settings. When you do, Google shows you its own screen asking you to authorize exactly the permissions in the table — we never see or store your Google password, access goes through Google's official system (OAuth), and you can revoke it at any time, from Memo or directly from your Google account.
| Service | What it asks for | What Memo does with it |
|---|---|---|
| Google Calendar | calendar.events.owned |
Reads the events in your primary calendar (title, start and end) only to show them in Memo's Calendar screen next to your to-dos, without storing them. And creates, updates or deletes an event when you confirm, change or delete a commitment in Memo, so your calendar stays up to date. |
| Your Google account | openid, email |
Your Google email address, to show you in Settings which account you connected. |
Google Calendar (calendar.events.owned): Memo reads events (title, start, end) from the primary calendar only to display them in the app's Calendar screen, without storing them, and creates, updates or deletes an event when the user confirms, edits or deletes a commitment in Memo.
Account (openid, email): used only to show the user which Google account is connected.
Memo keeps only what it needs to maintain the connection (the access tokens and the connected account's email address). Google user data is not sold, not used for advertising, not used to train AI models, and never sent to any AI provider (neither Anthropic nor OpenAI) or any other third party. Memo's use and transfer to any other app of information received from Google APIs will adhere to the Google API Services User Data Policy, including the Limited Use requirements. Users can disconnect Google Calendar at any time from Settings, which revokes Memo's access with Google immediately.
If you disconnect Google Calendar from Settings, Memo revokes the permission with Google immediately and deletes the stored access tokens. The events already in your calendar stay there, like any other event of yours.
"Emails to Memo" is optional and you turn it on from Settings. It lets Memo suggest an important email —a bill to pay, an appointment, a deadline— as a to-do, which you confirm or dismiss with 👍/👎 before it becomes a reminder. It works in two ways:
Memo gives you a private email address (for example, name.word.word.123@correo.memoriza.cl) and you choose, in your own Gmail settings, to forward a copy of your incoming mail to it. For this, Memo does not connect to your Gmail account or use any Google API: it only receives the copy you chose to forward. Memo accepts only emails forwarded from the account you registered; if anyone else writes to that address, the email is rejected.
When you turn it on, Gmail sends that address a notice to confirm the forwarding. Since that notice never reaches your inbox, Memo forwards Google's link to your email so you confirm it yourself with one tap. Memo never confirms anything on its own.
If you connect your Microsoft account, Microsoft shows you its own screen to authorize the Mail.Read permission. Memo reads only the subject, sender, date and short preview of new emails in your inbox, not the full email. It never replies to, deletes or sends email on your behalf.
Memo reads your emails only to spot what needs action; ads and newsletters are dropped without being read. If it's a to-do, you get a short summary. The email itself is not stored. The summary is encrypted (AES-256), like the rest of your notes, and you can delete it whenever you want. So it never processes the same email twice, Memo keeps for 30 days a fingerprint of the email's identifier, the result and the date, without its content.
You can turn it off whenever you want from Settings. In Gmail, you also remove the forwarding from its settings. When you disconnect Outlook, Memo immediately deletes the stored credentials; you remove the permission from your Microsoft account yourself.
Memo does not sell your information or use it for advertising. To work, it relies on these providers, each with access limited to what it needs for its part:
None of these providers may use your information for their own purposes — only to provide Memo with the specific service it pays them for.
If you turn on the Passwords folder, what you store there is encrypted on your phone with a key that only you have. Memo keeps only the already-encrypted copy, so you can see it on another phone, and it cannot open it. If you lose your phone and your recovery key, there is no way to recover it. You are responsible for the information you store and for safeguarding your phone and your key, and you can delete it whenever you want. The details are in the Terms for the Passwords folder.
Under Chile's Law 19.628 on the Protection of Private Life, and in line with the same principles as the European GDPR, you can at any time:
Your notes are kept for as long as your account exists. What you send to the Trash stays there, recoverable, and is permanently deleted after a retention period — just like any recycle bin. If you delete your account (section 8), everything is erased immediately, with no waiting period. What relates to "Emails to Memo" follows section 4.
A shared "Space" can include a minor as a participant (for example, to coordinate who picks them up from school). In that case, Memo requires the explicit authorization of their guardian before the space is activated, as required by Chile's Law 21.719. Memo is not meant to be used directly by a minor on their own.
If this policy changes in a meaningful way, we will let you know on WhatsApp the next time you use Memo. The date of the last update is always at the top of this page.
Questions about your information or this policy? Write to Memo directly on WhatsApp, or email sebastianzanca@gmail.com.