Rongtuli / Android app for children
Privacy, explained.
This policy explains what the Android app Rongtuli: Colour, Music, Learn (রংতুলি, package com.zubaer.rongtuli) does with data. It is a colouring, music and early-learning app for children aged about 2 to 5, made by Md. Zubaer Ahammed.
Last updated:
What the app itself collects
Nothing. The app has no accounts, no sign-in and no analytics. It never asks for a child’s name, age, photo, voice, location or any other personal information, and I do not run a server for it.
The pictures your child colours, the stars and stickers they earn, and the settings chosen in the grown-ups’ area are stored only on your device. They are removed when you clear the app’s data or uninstall the app, and they are not included in device backups.
Saving and sharing pictures
A picture is saved to the device’s photo gallery only when someone taps the save button. Sharing a picture opens Android’s own share menu, and only after a grown-up passes the parental check. The app never uploads pictures anywhere itself.
Spoken words
Letters, numbers and instructions are spoken by your device’s own text-to-speech voice. The app only sends it text to read out. It does not record or listen to anything, and it does not use the microphone or camera.
Advertising
The app shows one advert, through Google AdMob (the Google Mobile Ads SDK), and only on the grown-ups’ page, which children cannot open without passing a parental check. No advert appears while a child is colouring, learning or playing, and the advert library is not started at all unless the grown-ups’ page is opened.
Because the app is made for children, every advert request is:
- tagged as directed to children and as coming from a user under the age of consent;
- limited to adverts rated suitable for general audiences (G);
- non-personalised: no interest-based adverts and no remarketing.
The app does not use the device’s advertising ID or Android’s Privacy Sandbox advertising features; those permissions are removed from the app.
To show the advert, limit how often it appears and prevent fraud, Google may process your IP address (from which an approximate location can be worked out), information about the device such as model, operating system and language, an app-scoped device identifier, how the advert is viewed and tapped, and diagnostic information. This data goes directly from your device to Google. I do not receive it in a form that identifies anyone.
How Google uses information from apps that use its services ↗ · Google’s privacy policy ↗
The optional purchase
One optional purchase unlocks all the colouring pages and removes the advert. It can only be started from the grown-ups’ page. Payment is handled entirely by Google Play under Google’s terms; I never see card or payment details. The app only asks Google Play whether the purchase has been made, so it can unlock the pages on this and your other devices.
Permissions
The app asks for internet access and network state (used by the advert library and Google Play), Google Play billing, and, on Android 8 and 9 only, permission to write to storage so a picture can be saved to the gallery. It does not ask for location, contacts, camera, microphone or your photos.
Links that leave the app
The only links out of the app, to this policy, to Google Play and to my other app for children, are in the grown-ups’ area, which is locked behind a check that young children cannot pass. There are no social features or chat.
Children
The app is made for children aged about 2 to 5 and follows Google Play’s Families Policy. I do not knowingly collect personal information from children. If you think any has been collected, email me and I will help remove it.
Changes and contact
If this policy changes, the new version will be published on this page with a new date. For privacy questions or requests, email [email protected]. The policy for this website itself is the zubaer.com privacy policy.