Lettrova privacy policy
Last updated 30 October 2026 · App ID: com.rubdexide.lettrova
This policy explains what information the Lettrova app ("the app") collects, why, and the choices you have. The app is made and published by Rubdexide Technologies Private Limited, India ("Rubdexide", "we", "us"). It is available on Google Play (Android), with an iPhone version planned. If you have a question, email contact@rubdexide.com.
The short version
- You don't need an account. We never ask for your name, email address, phone number or contacts.
- Your game progress is saved only on your phone. We don't run servers that store it.
- The app shows ads from Google AdMob. Google may collect some device information to show and measure those ads, as described below.
Information saved on your device
The app saves your progress on your phone: levels completed, stars, coins, lives, your Brain Score, your starting country and settings (music, sound, vibration). This information stays on your device. We can't see it, and it is deleted when you uninstall the app or clear its data.
Advertising (Google AdMob)
The app is free because it shows ads: a small banner, and video ads that play only when you choose to watch one for a reward (an extra life, more tries, a booster or coins). Ads are provided by Google AdMob. To show ads, limit how often you see them, measure them and prevent fraud, the Google Mobile Ads SDK may collect:
- Advertising ID (a resettable device identifier): advertising, analytics, fraud prevention.
- Approximate location (from your IP address): advertising, fraud prevention.
- Interactions with ads (views, taps): advertising, analytics.
- Device and app information, crash and performance data: analytics, fraud prevention, keeping ads working.
This data is collected and processed by Google, not by us, and is sent encrypted. Read how Google uses it: How Google uses information from apps that use its services and the Google Privacy Policy.
Your choices
- Consent (EEA, UK and Switzerland): the app asks for your consent before showing personalised ads, using Google's consent tool. You can change your choice at any time in the app's settings ("Privacy & ad choices").
- Advertising ID: on Android you can reset or delete your advertising ID in Settings › Google › Ads (or Settings › Privacy › Ads).
- Delete your data: uninstalling the app removes everything it saved on your phone. Because we don't keep any data about you, there is nothing else for us to delete. For data held by Google, see the Google Privacy Policy.
Permissions
On Android the app only uses the Internet permission (to load ads) and the advertising ID permission. It does not access your camera, microphone, photos, contacts or precise location.
Children
The app is made for a general audience aged 13 and over and is not directed at children under 13. We do not knowingly collect personal information from children. If you believe a child has provided personal information through the app, contact us and we will help.
Security
Data sent to Google for ads travels over encrypted connections. Game progress never leaves your phone.
Your rights
Depending on where you live (for example the EU, the UK, California, or India under the Digital Personal Data Protection Act 2023), you may have the right to access, correct or delete personal data, or to withdraw consent. We hold no personal data about players, but email us and we will answer within 30 days and help you reach Google about ad data.
Changes to this policy
If we change this policy, we will update this page and the date at the top. Big changes will also be noted in the app's release notes.
Contact
Rubdexide Technologies Private Limited
House No 30, Ward No 5, VPO Basdehra, Una, Himachal Pradesh 174315, India
Email: contact@rubdexide.com
See also: App terms of use · App support