Privacy Policy

What stays on your device

Your moments, the mood you tapped, your tags, your photos, your streaks, your goals, and your settings are stored on your device. They are not uploaded to us, and there is no server of ours holding a copy of your journal. The one copy anywhere else is the backup in your own iCloud, described below.

Most of what Dayglean works out, it works out on your phone and nowhere else: search, the calendar, the recap, your books, the signal cards on Patterns, the two week experiment, and "Keeps coming up", which finds the people, places and things you name in your own writing. None of that is sent anywhere.

What we never collect

• No name, email address, phone number, or date of birth.
• No advertising identifiers, and no advertising in the app.
• No third party analytics, no crash reporting service, and no tracking SDKs. Dayglean ships with no third party libraries at all.
• No location, and no contacts.
• We never sell or share your information with data brokers, because we do not hold it in the first place.

When your writing reaches us

Three features are written by an AI model, which means what they read has to leave your device to be read: the Pattern Drop, Hear back, and the once a year letter. Each has its own consent screen in the app, each screen lists every field that would be sent, and each is off until you turn it on. Nothing else in the app sends anything, ever.

When you ask for a Pattern Drop, the app sends the date, the mood label, the tags, and the text of those moments, along with the text of any goals you have set and how many days this week you marked each one, to Dayglean's own server, which passes them straight to the API of Anthropic, our AI provider, and hands you back the observation it produced.

• Your moments are not stored on our server. They are held in memory for the length of the request and then gone.
• Your moments are never used to train AI models. Our provider is contractually barred from training on data sent through its API.
• Photos are never sent. Only text, mood, tags, dates, and goals, plus the short context lines described under Health and Calendar below if you have turned those on.
• So a new Drop does not repeat an old one, the request also carries the headlines of your Drops from the last eight weeks, each with whether you marked it right or missed, and the result of any two week test you started from a Drop. No dates, no ids and no moments go with them.
• If you ask a follow-up question about a Pattern Drop, the question goes the same way, with the observation it is about and the moments that observation drew on, under the same rules.
• Hear back sends the one moment you asked about and a few earlier moments it draws on: the words, the mood label, the tags, and how long ago each one was. No dates, no ids, no photos, no name.
• The letter about your year sends the shape of the year and never the year itself: how many moments fell in each month and the moods on them, your tags and how often, topic words with the mood beside each, the headlines of Drops you kept, your streak tiers, and how many Important Days you have. No moment text, no dates, no ids, no name.
• If you never turn these on, nothing you write is ever sent to us.

The install identifier

Each request carries a random identifier that the app makes up the first time it runs. It is not your device ID, it is not an advertising ID, and it is not tied to you or to any account. It exists only so the server can cap how many requests one copy of the app can make, which is what stops one person running up the bill for everyone. It is kept in this device's keychain, so deleting and reinstalling the app keeps the same identifier; it is never copied to iCloud or to a device backup, so a new device makes a new one.

The same cap needs to see the network address the request arrived from, so the server keeps a short lived counter against it for two days and then drops it. It is counted, never linked to your moments, and nothing about what you wrote is stored beside it.

Health and Calendar

Every one of these is off until you turn it on, and each has its own separate opt in on top of the system permission prompt.

Context for a Pattern Drop. Dayglean reads sleep from Health, and busy days and birthdays from the calendars you pick, only to add context to a Pattern Drop. Raw health records and raw calendar events never leave your device. What can travel, if you have turned the feature on, is a short derived note such as "slept under five hours last night" or "an unusually busy week".

State of Mind, both directions. One switch shows the State of Mind entries already in your Health app on your Timeline. The other adds each moment you save to Health as a mood, with the tags Health has a word for, and never your text or your photos. Only moments saved after you turn it on are written, nothing is backfilled, and "Remove what Dayglean added to Health" takes every one of them back out again. Neither direction feeds a Pattern Drop, and State of Mind data is never sent off your device by Dayglean. Dayglean never writes to your calendar.

The cycle phase feature sits behind an extra confirmation on top of all of that, and it only ever produces an observational note. It never predicts, diagnoses, or labels anything clinically.

Microphone, camera, speech, photos and video

Speaking a moment instead of typing it uses Apple's speech recognition on your device to turn your voice into text. The audio is not recorded to a file and is not sent to us. The camera is used only when you choose to take a photo for a moment or record a video moment, and photos you attach are picked through Apple's photo picker, which hands Dayglean just the photos you choose.

A video moment is up to twenty seconds of picture and sound, recorded with your camera and microphone. It is kept on your device, and in your own iCloud only if you turned iCloud on. Turning what you said into words uses Apple's speech recognition on your device only. The video and its frames are never sent to us, to the Pattern Drop, or to any AI service. Words you keep from it become the moment's text, the same as words you type, and are treated that way everywhere in this policy. When you share a video, Dayglean makes a copy for the share sheet and only you choose where it goes.

Permission to add to your photo library is only requested so you can save a Pattern Drop card or a shared video there.

Face ID and the app lock

If you turn on the app lock, Face ID, Touch ID, or your passcode is checked by iOS itself. Dayglean is told only whether the check passed. Your biometric data never reaches the app.

iCloud

Dayglean keeps a backup copy of your moments in your own iCloud account, and can sync them between your devices if you turn that on. That copy lives in your iCloud, under your Apple Account, governed by Apple's privacy policy. We have no access to it. The backup is on by default, and you can switch it off in the app under Settings, Your data, Back up to iCloud, which also removes the copy from iCloud.

Your subscription

Payment is handled entirely by Apple. We never see your card, your billing address, or your Apple Account. To confirm that a Dayglean+ feature is paid for, the app forwards Apple's own signed receipt for the transaction, which contains the app ID, the product, the dates, and an anonymous transaction ID. It carries no name and nothing that could identify you.

Diagnostics, only when you send them

There is no crash reporter running in the background and no analytics service watching what you do. The one time technical information reaches us is when you tap "Send Diagnostic Info" in Settings yourself, usually because you are reporting something that went wrong.

That sends the last hour of the app's own runtime messages, your device model and iOS version, a random support ID, and whatever note you typed. Those messages are the app describing its own behaviour, such as a screen opening or a network call failing. They do not contain your moments. This is the one thing on this page that we do keep, because a bug report is no use if it disappears, and it is stored against the support ID rather than against you. Nothing is sent unless you tap the button.

Children

Dayglean is for people aged 16 and over. It is not directed at children, and we do not knowingly collect anything from anyone under 16.

What you can do

• Delete any moment, or all of them, from inside the app.
• Turn cloud analysis off at any time in Settings, which stops anything being sent to us from that moment on.
• Export everything you have written as a PDF, photos included, on any plan, so your journal is never trapped in the app.
• Delete the app. Because your journal lives on your device, removing the app removes it, along with the install identifier. Turn off Back up to iCloud first if you want the iCloud copy gone too.

There is no account for us to delete on your behalf, because there was never one to begin with.

Changes to this policy

If this policy changes in a way that affects what happens to your information, the date at the top of this page changes with it, and the app tells you before the change takes effect.

Contact

Questions about any of this go to dayglean@sanutions.com, and a real person reads them.