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NOTENDA

A self-deleting note

THE SHORT ANSWER

Some information is only useful for a few days: a key box code, a parcel number, your parking spot at the airport. In Notenda, a single memo can carry a reminder, to come back at the right moment, and a deletion date, to disappear afterwards along with its attachments. For your passwords, though, use a password manager.

What is not meant to last

Much of what we jot down is only useful once. And yet it stays: in screenshots, deep in chats, in a notes app nobody ever tidies.

A reminder, then a deletion

A single memo can carry both:

  1. The reminder brings the information back when you need it: on the day you arrive, at the time of the appointment. The notification comes from your phone; its text goes through no server.
  2. The deletion date makes it disappear afterwards: on the date you set, the memo and its attachments leave your device, without you having to think about it.

One logical caveat: if you exported an archive of your data before that date, the memo is still in it. The archive is a copy; store it accordingly.

To send it to someone

Notenda does not send messages: it keeps your information for you. To pass on information that should disappear at the other end, messaging apps offer disappearing messages. Their own help pages point out, though, that before it disappears a message can still be screenshotted or forwarded[2]: ephemeral does not mean impossible to keep.

What about passwords?

Do not put your passwords in it. According to the recommendation of the CNIL, the French data protection authority, storing passwords in an app should be limited to password management apps, which encrypt them and unlock with a master passphrase[1]. Notenda is not one: your memos are protected by your device, its screen lock included.

A door code lent for a weekend is not your bank login: the first belongs in a self-deleting note, the second in a password manager.

Sources

  1. CNIL, Délibération n° 2022-100 du 21 juillet 2022 portant adoption d’une recommandation relative aux mots de passe (in French), point 51.
  2. WhatsApp Help Center, About disappearing messages.

Everything about Notenda comes from its frequently asked questions.

FOR AS LONG AS IT TAKES

Recalled at the right moment, erased afterwards

In Notenda you put the information in a memo, then choose when it should come back to you and when it should disappear. The reminder comes from your phone, without going through a server; on the deletion date, the memo and its attachments leave your device.

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A “Trip — Lisbon” notebook in Notenda: a tick list of things to bring back, the price of a transport card, and the flat booking with the key box code.

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