HINDU CALENDAR - PRIVACY POLICY Last updated: 6 September 2026 -------------------------------------------------------------------------- IN SHORT Hindu Calendar does its work on your device. It has no account to sign in to and no server of mine to talk to. The panchang, the festival dates, the muhurats and the kundalis are all computed by the app itself, offline. What you enter — your place, your settings, the kundalis and the tithis you save — stays on your device unless you choose to share or export it. The app shows ads through Google AdMob, and on Android it reports anonymous usage statistics through Firebase Analytics. A one-time purchase removes the ads. -------------------------------------------------------------------------- WHAT THIS COVERS The Hindu Calendar app, published by Alok Mandavgane: - on Google Play as "Hindu Calendar" (com.alokmandavgane.hinducalendar), including its Wear OS and Android TV surfaces - on the App Store as "Hindu Calendar: Kaalshodh" (com.alokmandavgane.hinducalendar) They are the same app, built from the same code, and this policy applies to both. The website hinducalendar.app shows the same panchang in a browser; it sets no account and collects nothing, and the app opens its links directly. -------------------------------------------------------------------------- WHAT THE APP KEEPS ON YOUR DEVICE - The place you look at: its coordinates, its name, and its time zone. - Your settings: language, theme, calendar month and year reckoning, ayanamsa, which events the home screen shows, which reminders are on. - The kundalis you save: the name, date, time and place of birth you typed. - The tithis you save under My Tithi: a name and a lunar date. That is the whole of it, and it stays on the device. On Android it lives in the app's own preferences and database; on iPhone and iPad in the app's own container. Nothing is uploaded to me, and there is nowhere for it to go. Two things move it, both at your request. On Android, Settings offers Export, which writes everything above into one file you keep and can Import on another phone; and if you have Android's own backup switched on, the system backs the same data up to your Google account, under Google's policy, not mine. On iPhone and iPad, iCloud's device backup does the same under Apple's. -------------------------------------------------------------------------- LOCATION Sharing your location is optional, and the app is fully usable without it — choose a city from the app's own list of more than three thousand, or type coordinates, and everything works from there. On Android the app asks only for approximate (coarse) location, which is as precise as a sunrise needs. Your coordinates are used for one thing: computing the panchang, the rise and set times, the muhurats and the kundali for where you are. This is arithmetic and it happens entirely on your device — the app carries its own astronomy, works offline, and does not consult anything to answer "what is the tithi here". The fix itself comes from the operating system, under its own privacy policy: Core Location on iPhone and iPad, Google Play Services on Android. To name the place, the app looks in its own city list first, and otherwise asks the operating system's geocoder, which sends the coordinates to Apple or Google under their policies. I never see them. Your location is not sent to me, is not attached to the ads, and is not stored anywhere but on your device. -------------------------------------------------------------------------- KUNDALIS AND SHARING A kundali is the most personal thing the app holds: someone's birth details. It is computed and stored on the device only. It leaves the device only when you tap Share: as a PDF the app hands to the sharing sheet, or as a link that carries the birth details you chose to share, so that the person who opens it sees the same chart on hinducalendar.app or in their own copy of the app. Who you send it to is your choice; I do not receive a copy. "Add to calendar" for a festival, likewise, writes an entry into your own calendar app through the sharing sheet, and nothing more. -------------------------------------------------------------------------- ADVERTISING The app shows a banner ad, and now and then a full-screen one, through Google AdMob. Google receives and processes the ad request itself, under its own policies: https://policies.google.com/privacy https://policies.google.com/technologies/ads On iPhone and iPad the app shows Apple's "allow tracking" prompt once. If you allow it, Google may use the device's advertising identifier to personalize ads; if you decline, the ads are chosen from the context alone. On Android, Google's ads SDK may use the device's advertising identifier to personalize ads, exactly as Google ordinarily serves them; the identifier can be reset or deleted in your device's settings, and "opt out of ads personalization" there applies to this app too. If you would rather have no ads at all, the app offers a one-time purchase, "Remove Ads", that removes them for good. That purchase is handled entirely by the App Store or Google Play; the app never sees your payment details, and I only learn that an anonymous purchase happened. "Restore Purchases" in the app's menu asks the store for that record again on a new device, and nothing else. -------------------------------------------------------------------------- USAGE STATISTICS (ANDROID) On Android the app uses Firebase Analytics, Google's usage-statistics service, to learn which screens are opened, which features are used, and roughly what devices and OS versions the app runs on, so I can decide what to improve. It does not receive your name, your location, your kundalis or anything you typed. Google processes these statistics under its own policy: https://firebase.google.com/support/privacy The iPhone and iPad app carries no analytics. -------------------------------------------------------------------------- NOTIFICATIONS The reminders the evening before a festival or fast, and the live Hindu-time clock in the notification shade, are scheduled by the app on your device from times it worked out itself. They are not push notifications: no server sends them, and nothing about your schedule or your location leaves the device to make them happen. -------------------------------------------------------------------------- WATCH AND TV On Wear OS the phone sends your place and settings to your own watch over Google's wearable data layer, device to device, so the watch shows the same panchang. On Android TV the app runs on the television by itself, from the same on-device computation. Nothing in either reaches me. -------------------------------------------------------------------------- WHAT THE APP DOES NOT DO - No accounts, no sign-in, no profile. - No server of mine, so nothing you enter is ever sent to me. - No crash-reporting service. - No cross-app or cross-site tracking by the app itself. On iPhone and iPad the ads SDK may use the advertising identifier only if you allow tracking; on Android as ADVERTISING above describes. - No selling or sharing of personal data by me, because none reaches me. - No reading of your photos, contacts, files or other apps' data. The calendar is written to only when you tap "Add to calendar". One exception worth naming: if you have opted in at the operating-system level to share usage and crash data with developers, Apple and Google may show me anonymous, aggregated statistics — how often the app crashed, roughly what devices it runs on. I cannot tell who anyone is from that, and you can turn it off in your device's own privacy settings. -------------------------------------------------------------------------- CHILDREN The app is not directed at children and collects nothing from anyone, so there is nothing it could collect from a child. -------------------------------------------------------------------------- YOUR DATA, AND REMOVING IT There is no data of yours for me to show you, correct or delete, because I hold none — there is no account and no server. Everything the app remembers is on your device, so deleting the app removes all of it; a saved kundali or tithi can be deleted one at a time inside the app. You can also clear the app's data (Android) or revoke the location permission at any time from your device's settings, and the app will carry on with whatever is left. Statistics already sent to Firebase Analytics are anonymous and cannot be traced back to you. -------------------------------------------------------------------------- CHANGES TO THIS POLICY If the app starts doing something this policy does not describe, the policy gets updated first, and the date at the top changes with it. -------------------------------------------------------------------------- CONTACT Alok Mandavgane alok@alokm.com