Math Privacy Policy

Last updated 2 November 2026

Mathrift is a mobile puzzle game published under the name AnnabySoft. This policy explains how we handle information when you play the Android game, enter a league, link Google Play Games, view an ad, or contact us. You can reach us at info@annabysoft.com.

Game progress on your device

Mathrift saves information on your device so you can resume playing. This includes your current level, completed daily challenges, achievements, streaks, coins, hint usage, and settings such as sound. Clearing Mathrift’s app data removes this local progress. Linking Google Play Games does not currently back up all of your progress.

Online identity and Google Play Games

Mathrift uses Unity Authentication for online features. When you connect as a guest, Unity assigns your profile a player identifier. Your profile may receive a generated display name, which you can change in the game.

On Android, you can choose to link Google Play Games to your Mathrift profile. Google and Unity process identifiers and authentication information to connect the accounts. Other players see your Mathrift leaderboard name when you are ranked. Choose a name you are comfortable making public. Google Privacy Policy

Ranked puzzles and monthly leagues

When you play a ranked puzzle, Mathrift sends information about the attempt to Unity Gaming Services. This includes your player identifier, puzzle details, moves, hints, backward steps, timing, completion, and score. We use these records to verify the solution, calculate points, prevent repeat daily completions from earning extra league points, and determine league placement.

Your leaderboard name, rank, and points are visible to other players. When a monthly league resets, archived standings are used to calculate promotions and demotions.

Third-party advertising

Mathrift uses Unity LevelPlay to request ads from Unity Ads and ironSource Ads. These third-party networks supply and display the advertisements. Their software can receive information directly from your device when Mathrift requests an ad, even if you do not tap the ad.

Depending on your device, region, privacy choices, and the network serving the ad, this information may include your advertising ID or other device and app identifiers, IP address, approximate location inferred from your IP address, device model, operating system, language, and ad activity. Ad activity can include whether an ad was requested, shown, viewed, completed, or tapped. Providers may use this information to select and deliver ads, measure impressions and performance, prevent fraud, and personalize advertising where permitted. Their privacy policy explains their processing and available choices. Unity Game Player and App User Privacy Policy

Mathrift displays interstitial ads between games. If you have insufficient coins for a hint, you can also choose to watch a rewarded ad. The ad provider tells Mathrift when you earn the reward so the game can grant one hint. You can manage your device’s advertising ID through Android’s ad privacy settings. Where an ad offers its own privacy controls, you can use those controls to review the serving network’s choices.

Service providers, security, and international processing

We use Unity Authentication, Cloud Code, Cloud Save, and Leaderboards to identify online players, verify ranked attempts, and maintain league standings. Google provides Google Play Games when you choose to link it. These providers may process information outside your country. Unity describes international processing, including in the United States and Israel, in its player privacy policy. Unity Game Player and App User Privacy Policy

Mathrift uses encrypted connections to communicate with its online game services. Ranked results are checked on the server, and access controls restrict direct changes to league scores.

How long information is kept

Local progress remains on your device until you clear the game’s data or remove the app. Online records are stored separately. We keep player profiles to maintain online identity, ranked attempts to verify results and resolve scoring issues, and archived standings to determine league placement across seasons. A monthly score reset or uninstalling the app does not by itself delete these online records. Advertising providers apply their own retention practices to the information they collect.

Your choices, deletion requests, and complaints

You can change your leaderboard name in Mathrift and manage local game data through Android settings. To request access to, correction of, or deletion of your Mathrift account and associated online data, email Info@annabysoft.com. Include your Mathrift display name and what you would like us to do. Please do not include a password, Google sign-in code, or advertising ID.

We may ask for information needed to verify that the account belongs to you. If we need to retain particular records for security, fraud prevention, or legal obligations, we will explain what is retained and why. Deleting a Mathrift profile does not delete your Google account. You can also contact Google or Unity directly about information they handle under their own policies.

If you contact us, we use your email address and the information you provide to respond and resolve your request. You can raise a privacy complaint through the same email address. Depending on where you live, you may also have the right to complain to your local privacy regulator.

Children’s privacy

Mathrift is intended for a general audience and is not directed to children under 13. If you believe a child has provided personal information through Mathrift, contact Info@annabysoft.com so we can investigate and respond.

Policy changes

We will publish changes on this page and update the date above when our privacy practices change.