Didion
Privacy Policy
Last updated 6 August 2026
Didion is a voice-first notes app made by Aman Nigam. This policy explains exactly what happens to what you write and say. It is written to be checked against the app's behaviour, not to cover us with vagueness.
There is no account, no login, and no analytics or tracking in Didion. We do not know who you are, and we have no way to look at your notes.
Where your notes live
Your notes are stored on your device. They are not uploaded to us, we do not run a server that holds them, and we cannot read them.
If you use Back Up Notes in Settings, the app writes a file to wherever you choose (Files, iCloud Drive, or anywhere else you pick). That file is yours; where it then lives is governed by whatever service you saved it to.
Your voice
Audio never leaves your device. Voice notes are transcribed on the phone itself, using a speech model the app downloads once. The recording is turned into text locally and the audio is not uploaded anywhere.
What is sent off the device, and to whom
To tidy up dictation, write a title, and pull out your tasks and reminders, the text of the note you just captured is sent to Google's Gemini API, which returns the processed result. This is the only thing Didion sends off your device, and it happens only for those three jobs.
- Only note text is sent — no name, no email, no device identifier, no account, because none exists.
- Google processes it as an API request and returns a response. Google's handling is covered by their own terms: Gemini API terms and Google Privacy Policy.
- If you never dictate or type a note, nothing is ever sent.
Reminders
Reminders are local notifications scheduled by your phone. Nothing is sent to us or to any server to make them work.
Subscriptions
Didion is a paid app. Purchases are handled by Apple and processed through RevenueCat, which tells the app whether your subscription is active.
- We never see your card, billing address, or Apple ID.
- RevenueCat assigns a random anonymous identifier for the purchase. It is not linked to your name, your email, or the contents of your notes.
- RevenueCat's policy · Apple's policy
App updates
The app checks for updates using Expo's update service. That check transmits only technical information needed to serve the right update, such as the app version and platform. It does not include your notes.
What we collect about you
Nothing. There are no analytics, no crash-reporting SDK, no advertising identifiers, and no third-party trackers in Didion.
The app does record how many words it has sent to the AI model, so it can show you what the AI features cost. That count is stored on your device and is never uploaded. You can see it, and clear it, in Settings.
Children
Didion is not directed at children under 13, and we do not knowingly collect any information from them. Since the app collects nothing and requires no account, there is nothing for us to collect or delete.
Deleting your data
Delete a note in the app and it is gone from the device. Delete the app and everything it stored goes with it. Because we hold nothing on a server, there is no account to close and no deletion request to make to us.
To cancel a subscription, use your Apple ID settings — Apple manages subscriptions, not us.
Your rights
Depending on where you live, you may have rights to access, correct, or delete personal data held about you. In Didion's case there is nothing held: your notes are on your device and we operate no server that stores them. If you have a question about this, contact us below.
Changes to this policy
If this changes, the date at the top changes with it, and a meaningful change will be noted in the app's release notes.
Contact
Questions about privacy in Didion: amannigam@gmail.com