AI reminder apps and your privacy: what gets sent, and how to keep a note out of it

When an AI feature in a reminders app turns your words into a task, a due date or a summary, those words usually leave your phone: first to the app's own server, then to an AI company's model. Whether a copy is kept, for how long, and whether it trains anything is up to each app's privacy policy, and most answer only part of that.

The fix is the same everywhere: find which action sends a note, keep anything sensitive out of it, and for what must stay private, use a per-note private setting or a different place. Here is what six apps' pages say. I make one of them, Notif, so read that part knowing who wrote it.

What gets sent, and what to look for

At minimum the app sends the text you typed, said, or pulled from a photo or email; most add context such as the date, your time zone, your city, names from your contacts, or a connected email or calendar, and an assistant that plans your week reads your other tasks too. Both stops, the app's server and whoever runs the model, can keep a copy or log it.

Open the App Store listing, scroll to App Privacy, follow the privacy policy link, and look for five things:

1. Which action sends. Only what you hand it, like a forwarded email, or everything you write
2. Who runs the model. A named provider lets you read its terms; an unnamed one tells you nothing
3. Whether your note is stored, and for how long. Look for retain, store, logs, history, and a number of days
4. Whether it trains anything, both the app and the provider
5. Whether there's a way out per note, or only not writing it there

The App Store label is a cross-check: User Content under Data Linked to You means the app keeps what you write.

Apple Reminders with Apple Intelligence

Apple's iOS 26 guide says Reminders uses Apple Intelligence to "get suggested reminders, and automatically categorize related reminders into sections within a list." Suggestions come from text or a website you share to Reminders, per Apple's support article.

Apple's privacy guide says "In many cases, Apple Intelligence models run entirely on device," and that more complex requests can use Private Cloud Compute, where "The data being processed in Private Cloud Compute is not stored or made accessible to Apple." Apple doesn't say which handles a shared email, so don't assume it stayed on the phone; Settings, Privacy & Security, Apple Intelligence Report lists the requests your iPhone sent to Private Cloud Compute. ChatGPT is off by default: Apple's ChatGPT extension page says you "will be asked before any of your information is shared," and that without a ChatGPT account OpenAI must not store your request, except where the law requires, or train on it.

To keep a note out: a reminder you type the ordinary way isn't described on these pages as going anywhere for AI; suggestions only see what you share. To switch it all off: Settings, Apple Intelligence & Siri, then the button next to Apple Intelligence.

Todoist

Todoist's AI features are Todoist Assist: Filter Assist on every plan including free, Task Assist and Email Assist on Pro and Business, per the help article updated October 9, 2026, plus Ramble, voice to tasks, on its Assist page.

The help article is unusually direct: "We do not send your data directly to OpenAI. All processing flows through Todoist's secure infrastructure," using "models from top AI providers available via AWS Bedrock and Google Cloud Vertex AI." Which models isn't said. On training: "These providers have committed that data processed through their services will not be used to train their AI models," and the privacy policy, effective August 27, 2026, says Todoist itself doesn't train generalized models on what it collects. AI vendors may receive your information, which is kept with U.S.-based cloud providers for "as long as necessary." Every task lives on Todoist's servers regardless.

To keep a note out: Assist works on what you hand it. "You can turn Email Assist on or off in your settings. Task Assist is off until you set up the extension, and you can remove the extension at any time." Keep the sensitive email, recording or task away from those; nothing here says a task you type normally goes to a model. Pro is $6.99 a month or $59.99 a year on the App Store as of October 2026.

TickTick

TickTick has a new AI Assistant and an AI Mode for voice entry. Its AI Assistant page says the assistant "can use information from your tasks, habits, focus records, and more"; you turn it on under Settings, Tab Bar, by adding AI.

The privacy policy, last revised July 9, 2026, says what's collected but not where it goes. "We collect the text, audio, and transcripts you provide when you actively use our AI features," and "we utilize third-party AI service providers to process your inputs and generate relevant outputs." They aren't named. Your data isn't "used to train our models," meaning TickTick's; what the providers do isn't said. Conversations are kept "for the duration of that conversation's lifecycle," and you can delete them; everything else until you delete your account, plus 90 days in backups. The voice page says voice data "is only used for processing the current task. It is not stored or used for AI model training."

To keep a note out: leave AI off the tab bar and AI Mode off in voice entry. There's no per-task fence: the assistant can read your tasks, so assume anything in your lists is in reach. Premium is $4.99 a month or $49.99 a year on the App Store as of October 2026.

Ping

Ping is an AI-first reminders app. Its site says it "turns voice notes, photos, starred emails, Slack messages, and ChatGPT conversations into clear, actionable tasks," with an AI Task Assistant on Pro, $3.66 a month billed annually as of October 2026.

Its privacy policy is dated August 1, 2024, and doesn't mention the AI features: no model provider, nothing on whether a voice note or photo is kept, and its only line about training is about Google data. It does say servers "are located in the United States, and Germany," connected email is "processed by the application only on your device," and your information is kept as long as you have an account. The App Store listing puts User Content under Data Linked to You.

To keep a note out: the policy describes no private or local mode, so the only way is not to put it in Ping.

Memory AI

Memory AI - Reminders & Tasks, by Sizze, is another. Its listing says it saves notes, creates reminders and records meetings, and "requires an active subscription or free trial"; Pro is $9.99 a month or $29.90 a year on the App Store as of October 2026.

Its privacy policy is short and answers what most dodge. What AI processes: "transcripts of your voice/screen recordings, and the reminders and notes you create." Who runs the model: "our third-party AI provider DeepSeek, acting on our behalf," which "does not use it to train its own models." Where it's stored: "on our servers hosted on DigitalOcean," kept "only as long as needed to provide the service." Whether you're comfortable with that provider is your call.

To keep a note out: there isn't a way. "The reminders and notes you create" are in the AI-processed category, so every note is in. Keep sensitive ones somewhere else.

Notif

Notif is the reminders app I built. Every note is a real reminder in Apple Reminders, in Notif's own list; there's no account, and notes are never stored on Notif's servers. Its AI feature, the Insight, is one helpful line on a note's card: one a day on free, one on every note on Pro.

The privacy policy spells out what goes. A note that isn't private can be sent, one at a time, to Notif's server and an AI provider to write its Insight, "never your whole library and never a private note." With the note's words go "the date and time, your time zone and language, any reminder time already set, a place or contact the note names (with the contact's number, for a call or message button)", plus what your phone already found about the note, your category names, your city and the weather if you've allowed Location, and your "About you" line if you've written one in Settings. The provider is "currently OpenAI and/or Anthropic." The policy says "Notif's server does not store your note content, and Notif's logs never contain note text," and "these providers' APIs do not use API content to train their models by default." Two 30-day caches hold the web links a search found and one shared answer per common meaning, which "can repeat the note's words," without saying who you are.

To keep a note out: three ways, per note. Turn Insights off in Settings and no note is sent; turn off only Automatic Insights and a note is sent only when you tap for it; or mark the note private, part of Notif Pro ($4.99 a month or $39.99 a year, cancel any time): "A note you mark private is never sent to Notif's server or to any AI, and Notif takes it out of Apple Reminders. It is excluded from the AI features, from widgets, and from every network feature, enforced in code." Private notes are encrypted on your iPhone with AES-256, opened with Face ID. Private notes come with you through iCloud Keychain. Keep it on in Settings, or a new iPhone can't open them. Like all of Notif's data, they're part of your iPhone backup. Only the notes you mark private are private.

Side by side

A checklist for any app

1. Find the policy from the App Store listing and check its date
2. Find the sentence that says which action sends your words
3. Find the provider's name. No name, no answer
4. Find retain, store, logs or history with a number of days, and train twice: the app and the provider
5. Look for a per-note way out: private, local, or off
6. Keep passwords, PINs, card numbers and ID numbers in a password manager, not a reminder

See also private reminders on iPhone, Notif vs Todoist and Notif vs Apple Reminders. Notif is free on the App Store: get Notif.

Questions

Do AI reminder apps send my notes to an AI company?

Usually yes, for the notes the AI feature touches: the words go to the app's server and on to a model run by a company like OpenAI, Anthropic, Google, DeepSeek or Apple. Which notes, and whether a copy is kept, depends on the app's privacy policy, and some policies don't say

Does Apple Intelligence in Reminders send my reminders to Apple?

Apple says many Apple Intelligence models run entirely on device, and that requests needing more capacity go to Private Cloud Compute, where the data is not stored or made accessible to Apple. The Apple Intelligence Report under Settings, Privacy & Security lists the requests your iPhone sent to Private Cloud Compute

Does Todoist send my tasks to OpenAI?

Todoist's help page says it does not send your data directly to OpenAI, that all processing flows through Todoist's own infrastructure, and that the models come from providers available via AWS Bedrock and Google Cloud Vertex AI. It doesn't name the models

How do I keep one reminder out of an app's AI?

Find which action sends notes to the AI and keep that reminder out of it: don't forward it, dictate it or ask the assistant about it. If the app processes every note, as Memory AI's policy says it does, the only way out is a different app or a per-note private setting

Are private notes in Notif sent to an AI?

No. A note you mark private is never sent to Notif's server or to any AI, it's encrypted on your iPhone with AES-256 and opened with Face ID, and Notif takes it out of Apple Reminders. Marking a note private is part of Notif Pro; a note already marked private stays private on any plan

What should never go in a reminders app with AI features?

Passwords, PINs, card numbers and ID numbers belong in a password manager, whatever the app. Notif's policy says notes that look like a password or PIN never get an Insight on their own, but a password manager is still the right place for them