Odia Calendar · Privacy
Privacy policy for Odia Calendar
This page lists every piece of data Odia Calendar handles, why it handles it, and who else ever sees it. Nothing here is sold.
Last updated 6 October 2026
Who this covers
This policy applies to Odia Calendar (package com.matinstudios.odiacalendar), the Android app
published by Matin Studios on Google Play. It does not cover any other app, including our other titles — each has its own policy, listed on the
studio privacy page.
In this document, "we" and "us" mean Matin Studios, and "the app" means Odia Calendar. "Personal data" means any information that could identify you, on its own or combined with something else.
What we collect
Odia Calendar handles the following, and nothing else. Each item says whether it can be tied back to you as an individual.
| Data | Why | Linked to you |
|---|---|---|
| Advertising ID | Lets Google AdMob choose and frequency-cap the banner ad. Resettable, and you can delete it in your phone’s settings. | No — anonymous |
| Device and app information | Device model, Android version, language and screen size, so the ad renders correctly and ad fraud can be detected. | No — anonymous |
| Approximate location from your IP address | Used by AdMob to serve ads suited to your region and to follow regional law. A country or city estimate — the app has no location permission. | No — anonymous |
| Ad interactions and diagnostics | Whether an ad was shown or tapped, and how the ads SDK performed, so impressions can be counted. | No — anonymous |
We do not sell any of it, we do not build a profile of you, and none of it reaches a system of ours. The ad network may use it to personalise the ads you see — Advertising explains how to control that.
Advertising
Odia Calendar shows ads supplied by Google AdMob. Ads are how a free app with no in-app purchases pays for itself.
Google AdMob may use your Advertising ID to show you personalised ads. You can control that on your own device at any time, without uninstalling anything:
- Settings → Google → All services → Ads — reset your Advertising ID, or delete it so apps stop receiving one at all.
- Opting out does not remove the ads; it makes the ones you see non-personalised, chosen from context rather than from a profile.
If you are in the European Economic Area, the United Kingdom or another region where consent is required, the app asks for it, using Google's consent form, before any ad is requested. You can change your answer later in the app, under Settings → Privacy options.
How Google itself handles advertising data is set out in How Google uses information from sites or apps that use our services.
Who else sees it
The app includes the services below. Each one is governed by its own privacy policy, linked here so you can read it directly.
- Google AdMob — serves the banner ad, and asks for consent through Google’s User Messaging Platform where the law requires it. Privacy policy
- Google Play services — provides the Advertising ID, the in-app update check and the in-app review prompt. The app never sees what you write in a review. Privacy policy
Beyond these, we share data with no one. We would only ever disclose information if a valid legal order required it, and we would tell you unless legally forbidden from doing so.
Permissions the app asks for
Android will only ever grant what the app declares. This is the complete list, with the reason for each.
-
INTERNET— loads the ad banner. The calendar itself is built into the app. -
ACCESS_NETWORK_STATE— checks for a connection before requesting an ad. -
com.google.android.gms.permission.AD_ID— reads the Advertising ID for AdMob. -
ACCESS_ADSERVICES_AD_ID— declared by Google’s ads SDK for Android’s Privacy Sandbox ad APIs, used where your phone has them. You control these three in Settings → Security & privacy → Privacy → Ads. -
ACCESS_ADSERVICES_ATTRIBUTION— also declared by the ads SDK for Privacy Sandbox: lets it measure ad taps without a cross-app identifier. -
ACCESS_ADSERVICES_TOPICS— also declared by the ads SDK for Privacy Sandbox: broad interest topics your phone works out itself, which you can see and remove in the setting above. -
POST_NOTIFICATIONS— shows festival reminders. Optional — on Android 13 and later it is asked for only when you choose reminders, never at launch. -
SET_WALLPAPER— sets a month’s page as your wallpaper, only when you tap "Set as wallpaper". -
WAKE_LOCK— declared by WorkManager, the Android library that runs the once-a-day reminder check, so the check can finish if the phone sleeps mid-run. -
FOREGROUND_SERVICE— also declared by WorkManager. The reminder check is short, and the app runs no persistent service. -
com.matinstudios.odiacalendar.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION— internal to the app, added by AndroidX. It grants nothing; it stops other apps sending messages to this app’s own components.
Optional permissions can be refused, and the rest of the app keeps working. You can review or revoke anything granted in Settings → Apps → Odia Calendar → Permissions.
Storage and retention
Your language and theme, the last month you viewed, your reminder settings, and a few counters that decide when to show Google Play’s review prompt and update check are stored on your device only, and never leave it through the app. "Set as wallpaper" copies the month’s page to the app’s private cache just long enough to hand it to your phone’s wallpaper screen.
Uninstalling Odia Calendar removes everything it saved on your device. If Android's own backup service is switched on for your account, your device may include the app's settings in that backup — that copy is held by Google under Google's privacy policy, not by us, and you can turn it off in your device's backup settings.
Your choices
Depending on where you live, data protection law — such as the GDPR in the UK and EU, or the CCPA in California — gives you the right to ask what data an organisation holds about you, to have it corrected, to have it deleted, and to object to how it is used.
Because what we receive is anonymous, we usually cannot connect it to you in order to retrieve or delete it individually. What you can do at any time: reset or delete your advertising ID in Settings → Google → Ads, opt out of personalised advertising there, and uninstall the app to remove everything stored locally. If you want to ask us anything else, write to us at the address below and we will answer within 30 days.
Children's privacy
Odia Calendar is a general-audience app. It is not directed to children under 13, and we do not knowingly collect personal data from anyone, of any age.
If you are a parent or guardian and believe your child has provided personal data through the app, contact us and we will act on it.
Changes to this policy
If the app changes what it does with data, this page changes with it, and the "last updated" date at the top moves. Substantial changes will also be noted in the app's Google Play release notes. We do not quietly rewrite history — the policy in force is the one you can read here.
Contact
Questions about this policy, or about anything Odia Calendar does with data, go to a person, not a ticket queue:
hello@matinstudios.com Matin Studios · India
Canonical URL for this policy: https://matinstudios.com/odia-calendar/privacy-policy — this is the address to enter in
the Google Play Console listing for com.matinstudios.odiacalendar.