Last Updated: October 19, 2026
Rivio ("Rivio", "we", "us", or "our") is a study and productivity application designed to help users organize study materials, use a Pomodoro timer, create flashcards, and track study activity.
This Privacy Policy explains how information is handled when you use Rivio, including information processed by third-party advertising and analytics services.
Rivio is designed to operate locally on your device.
Rivio does not require you to create an account and does not ask you to provide personal information such as your name, email address, phone number, password, or home address.
Information created or entered by you within Rivio may include:
Note subjects and references to PDF files
Flashcard subjects, decks, questions, and answers
Pomodoro sessions
Study activity and statistics
Streak and activity information
App preferences and settings
This information is stored locally on your device using the app's local storage/database.
Rivio does not upload your study materials or locally stored study records to servers operated by us for cloud storage or synchronization. However, certain app usage events and technical information may be transmitted to third-party analytics and advertising providers, as described below.
We do not sell your locally stored study materials.
Rivio allows you to select PDF files from your device for organization within the app.
Rivio stores a local reference to the selected document so that it can be accessed through the app. Rivio does not upload the contents of your PDFs to our servers.
The contents of your PDFs are not intended to be collected by Rivio's analytics service. We do not intentionally send PDF contents, document filenames, or local file paths to PostHog for analytics.
You are responsible for the content of documents that you choose to access through Rivio.
Because Rivio stores its application data locally, deleting the Rivio application may delete the locally stored application data associated with it.
Rivio does not maintain a cloud account or server-side copy of your locally stored study materials that can be restored after the application and its local data have been deleted.
Certain anonymous analytics events already transmitted to PostHog or information processed by Google AdMob may remain subject to the respective provider's retention and deletion policies. Deleting the app does not necessarily delete data previously transmitted to these providers.
Rivio uses Google AdMob to display advertisements.
AdMob is a third-party advertising service operated by Google. Google may process certain information from the device or app interaction in connection with advertising, ad delivery, measurement, fraud prevention, and related purposes.
Depending on the user's device, location, settings, applicable laws, and Google's advertising configuration, this may include information such as advertising identifiers, IP address or approximate location derived from network information, app/device information, and information related to ad interactions.
Rivio does not directly collect or store this advertising information in its own local study database.
Google's processing of information through AdMob is governed by Google's own policies and terms.
For more information, please refer to Google's Privacy Policy:
https://policies.google.com/privacy
Where required by applicable law, Google may request consent regarding personalized advertising and related processing.
Advertising preferences and controls may also be available through your Android device and Google's services.
Users in regions subject to applicable privacy regulations may receive additional consent or privacy choices when using Rivio.
Rivio uses PostHog, a third-party product analytics service, to understand how users interact with the application and to improve its functionality and user experience.
PostHog may receive information about app usage, including events such as:
Opening the application and viewing screens
Starting or completing a focus session
Opening flashcard decks or using study features
Accessing the library or opening notes and PDFs
Other interactions with supported app features
Depending on the events recorded and the SDK configuration, information transmitted to PostHog may include:
An anonymous identifier used to distinguish app installations or users in analytics
Event names and timestamps
Screen names and feature interaction details
Relevant event properties, such as session duration or completion status
Technical information such as app version, operating system, or device-related metadata, where collected by the SDK
Rivio does not require an account for analytics and does not intentionally send your name, email address, phone number, note contents, flashcard questions or answers, PDF contents, or local document paths to PostHog.
PostHog is used for product analytics, such as understanding feature usage, identifying areas of friction, and measuring engagement. Rivio does not intentionally use PostHog to identify users by their real-world identity.
Analytics information is transmitted to PostHog's servers for processing and analysis. PostHog may process technical information, including network information such as an IP address, in accordance with its service configuration and privacy practices.
For more information about PostHog's data handling, please refer to:
Rivio currently uses the following third-party services:
Google AdMob — advertising, ad delivery, measurement, and related services.
PostHog — product analytics and app usage measurement.
These providers may process information transmitted by their respective SDKs according to their own privacy policies and applicable terms. Their processing may occur on servers outside your device.
Rivio does not control all data processing performed independently by these providers. Users should review the providers' privacy documentation for additional information.
Google Privacy Policy:
https://policies.google.com/privacy
PostHog Privacy Policy:
https://posthog.com/privacy
Rivio's own study-related information is stored locally on the user's device rather than on servers operated by Rivio.
Information transmitted to third-party services is subject to the security practices of those providers and the relevant network and SDK configuration.
Users should protect their Android device using appropriate security measures, such as a device lock and keeping their operating system up to date.
No method of electronic storage or transmission can be guaranteed to be completely secure.
Rivio is not specifically directed toward children under the age of 13.
Rivio does not knowingly request or collect personal information directly from children. However, third-party advertising and analytics providers may process certain device or usage information as described in this policy.
If you believe that a child has provided personal information through Rivio, please contact us so that the situation can be reviewed.
We may update this Privacy Policy when Rivio's functionality, third-party services, or applicable legal requirements change.
Any updated version will be made available through the location where this Privacy Policy is published, with the "Last Updated" date changed accordingly.
If you have questions about this Privacy Policy or Rivio's privacy practices, you may contact:
Developer: Xiaolung
Email: abhinavfffans@gmail.com
Rivio's core study materials and study records are stored locally on your device. Rivio does not require an account and does not upload your notes, flashcards, study statistics, or PDF contents to Rivio's servers for cloud storage or synchronization.
Rivio uses Google AdMob for advertising and PostHog for product analytics. These third-party services may process certain device, technical, advertising, and app usage information as described in this policy.