Kairos is an on-device reminder tool (reminders, countdowns, habits, quick timers, voice input). This policy explains how we handle privacy-related information. Kairos has no account. Your reminders, habits, and countdowns stay on your device. Advertising performance is measured separately, as described below.
Effective date: November 11, 2026 · Version: v1.2
2.Data and ad measurement
We do not collect your name, phone number, or email address. There is no registration.
We do not upload the text of your reminders, your habit records, or your countdown content. Those stay in the local database on your device.
If you allow tracking, the app reads the advertising identifier to measure ad performance. You can decline, and reminders and habits still work.
A short link placed on the clipboard by a landing page is read only to claim that click. The app does not rewrite the clipboard.
App opens, the screen you open, and the events for creating a reminder, a habit, and a countdown, are sent to https://sdk.adeventstrace.com. Create events and screen views are sent without a price, and screen views do not include reminder text.
An Apple Search Ads attribution token is forwarded to the same server.
3.Permissions
Notifications: delivering reminders at times you set — the core function of the app;
Microphone: records audio only while you actively use "voice input" to create a reminder. Audio is used solely to produce the reminder text and is discarded immediately after recognition;
Camera & Photos: only when you use "photo creation" to import a picture (e.g. an appointment card). Recognition happens entirely on-device and the image is never uploaded;
Calendar: only if you enable "calendar mirroring", the app creates a sub-calendar named "Kairos" in your own system calendar as a backup delivery channel. The app cannot read anything else in your calendar;
Siri & Shortcuts: supports voice commands such as "remind me with Kairos". Related data never leaves the device;
Background audio: keeps the countdown ringtone playing (including on the lock screen) until you manually stop it.
4.Speech Recognition
The voice feature converts your speech into reminder content. Audio and recognition serve only that single creation event and are discarded immediately afterward — never stored, never used for model training or any other purpose.
5.In-App Purchases
Pro subscriptions and one-time purchases are processed through Apple's In-App Purchase system. Card data stays with Apple. The developer does not see your card number or billing address. After a successful purchase, the app sends that transaction's price and currency to https://sdk.adeventstrace.com. Identifiers of transactions already reported are kept only on the device, so the same transaction is not sent twice.
6.Data Storage & Deletion
All data (reminders, habits, countdowns, settings) lives in the local on-device database;
Uninstalling the app deletes the on-device database of reminders, habits, and countdowns.
Calendar mirror events can be cleared in one tap inside the app, or deleted directly in the system Calendar app.
7.Android System Permissions
The Kairos app for Android requests only the system permissions listed below, each strictly for the local feature indicated — nothing more. If a permission is declined, the related feature is degraded or disabled, and the rest of the app keeps working.
Notifications (POST_NOTIFICATIONS): delivering reminder notifications at the times you set — the core function of the app;
Exact alarms (SCHEDULE_EXACT_ALARM / USE_EXACT_ALARM): scheduling reminders to fire at the exact moment, guaranteed even when the device is in Doze standby;
Full-screen notifications (USE_FULL_SCREEN_INTENT): showing the full-screen alarm page on the lock screen when a reminder rings;
Microphone (RECORD_AUDIO): only while you actively use "voice creation". Audio is processed by your device's system speech recognition service (on many devices this is Google's speech service, handled under Google's privacy policy) and is discarded immediately after recognition — the app never stores it;
Camera (CAMERA): only when you take or pick a picture in "photo creation". Recognition happens entirely on-device (bundled ML Kit model, fully offline); the photo is processed only temporarily and deleted right after — never uploaded or retained. If declined, the feature falls back to gallery-pick only;
Run at startup (RECEIVE_BOOT_COMPLETED): restoring your reminders automatically after the device restarts;
Vibration & keep-awake (VIBRATE / WAKE_LOCK / foreground service): keeping the ringtone and vibration going until you stop them, and running the quick countdown timer;
Network (INTERNET / ACCESS_NETWORK_STATE): only for the optional holiday-data update. The app is fully usable offline, and no personal data is transmitted.
Reminder, habit, and countdown data is stored only on your device. Uninstalling the app deletes that local data.
8.Children's Privacy
Kairos is not directed at children under 13.
9.Changes & Contact
Material changes to this policy will be announced in-app and on this page with an updated version number. Questions? Contact: didilongsec@hotmail.com