Privacy Policy for Sperm Run

Sperm Run — Privacy Policy & Terms of Use
Last updated: November 2026 · App: com.justrafi.spermrun · Developer: JustRafi

By installing or playing Sperm Run (the “Game”) you agree to these Terms of Use and this Privacy Policy. If you do not agree, please do not use the Game.

1. About the Game
Sperm Run is a fictional racing game loosely inspired by human reproductive biology. It contains no sexual content. Scientific details are simplified or exaggerated for gameplay and must not be relied on as medical or educational advice.

2. Who may play
The Game is intended for players who are at least 13 years old (or the minimum age required in your country, if higher). It is not directed at children, and the ads in it are not child-directed.

3. Your data (Privacy)
In short: the Game keeps your progress on your phone. If you choose to sign in with Google or Facebook, a copy is also stored online so you can get it back on another phone. We do not sell your personal data and we use it only to run the Game as described here. The developer responsible for your data is Just Rafi (Bangladesh); contact details are in section 16.

Kept on your device: your player name, round, coins, gems, items, settings, statistics, a random player ID, the optional face photo, reminder settings and the number of invites you sent. You can delete all of it in Settings → Reset progress (purchases are kept because Google Play restores them) or by uninstalling the Game.

Kept online, only if you sign in: see sections 5a (Facebook) and 5b (cloud save).

Handled by other companies: Google (ads, purchases, app updates, sign-in and Firebase), Meta (Facebook login) and the connection services in section 5, each under its own privacy policy. We never receive your card or payment details.

3a. How long we keep data, and how to delete it
Data on your device stays until you delete it or uninstall the Game. Your cloud save and sign-in account stay until you delete them: open the Game → Settings → Account → “Delete cloud save”. This deletes your saved progress and your account from Firebase. You can also ask us by e-mail (section 16) and we will delete it within 30 days; we may ask for your player name to find your account. Google may keep technical backup copies for a limited time under its own policies. Facebook data stays on your phone until you log out, and you can remove the Game in Facebook → Settings → Apps and websites.

3b. Your rights
Depending on where you live (for example the EEA, the UK or California) you may have the right to access, correct or delete your personal data, to withdraw consent (for example for ads, in Settings → Privacy & ads) and to object to or limit some processing. Use the tools above or contact us (section 16). You may also complain to your local data-protection authority. We do not sell personal data.

3c. Security and international transfers
Data travels over encrypted connections (HTTPS). Cloud saves are protected by rules so that only the signed-in player can read or change their own save. No system is perfectly secure, but we take reasonable steps to protect your information. Google, Meta and the connection services may process data on servers outside your country, including in the United States; our cloud-save database is hosted in Google’s United States region. By using these optional features you understand that your data may be transferred there.

4. Photos (“My Face”)
If you add a photo, it is cropped and stored on your device; it is not sent to us. If you also use cloud save, a copy of the cropped photo is stored with your save in Firebase so it can be restored on a new phone, and it is deleted when you delete your cloud save. Only add photos of yourself, or photos you have permission to use. If “Share my face in multiplayer” is ON, a small thumbnail is sent to the other players in your race so they can see it on your character; no server of ours stores it. You can turn this off or remove the photo at any time.

5. Multiplayer and online play
Same Wi-Fi: devices exchange your player name, a random player ID, your chosen cosmetics and live race data (position, speed, tail state) directly over your local network.
Online with Friends and the internet link: to let phones find each other, the Game briefly connects to a free connection service (PeerJS, peerjs.com) and checks your network’s public IP address (ipify.org), which is turned into an anonymous network name so phones on the same Wi-Fi can find each other. The race data then travels directly between the phones, or through a PeerJS relay server when a direct connection is not possible. These services process your IP address only as needed to connect you and do not receive your photo, coins or purchases. Because races use a direct phone-to-phone connection, the other players’ phones may be able to see your device’s IP address while the race lasts; if you do not want this, do not use online multiplayer.
Live: LIVE races are played against computer-controlled rivals that the Game creates so a race can start instantly. The rival names and countries, the number of racers “alive” and the place numbers shown in LIVE mode are simulated for fun and do not represent real people or a real count of players.
Online relay (if enabled): the same data can travel through our relay server, which processes your IP address only as needed to deliver messages and does not keep a record of your races or messages. There is no chat or private messaging between players. Do not put personal information (full name, phone number, address) in your player name.

5a. Facebook login (optional)
You can log in with Facebook to play with your Facebook friends. The Game asks Facebook only for your public profile (name and picture) and the list of your Facebook friends who also play Sperm Run and logged in with Facebook (Facebook does not show us other friends). Facebook gives the Game your name, your profile picture and a user ID that only works for this app. This information is kept on your device and is used to show your friends, whether they are online, and to send and receive race invitations. To reach each other, the Game uses your app user ID as your connection name on the PeerJS connection service described above; an invitation contains only your player name, round and a room code. Only your Facebook friends who play can see that you are online. We never post to Facebook and never see your Facebook password. If you also use cloud save with Facebook, see 5b. You can log out at any time in Settings, which deletes this information from your device; you can also remove the Game in Facebook → Settings → Apps and websites. To ask us to delete any data, see section 3a.

5b. Cloud save (optional)
If you sign in with Google or Facebook to save your progress, the Game uses Google Firebase (Firebase Authentication and Cloud Firestore, operated by Google) to create an account for you and to store one copy of your game progress: your player name, round, coins, gems, items, settings for the game, statistics and, if you added one, your face photo. Firebase receives your name, e-mail address and profile picture from Google or Facebook and a user ID. Only you can read or change your saved progress. Purchases are not stored there; Google Play restores them. You can sign out or delete your cloud save and account at any time in Settings → Account (“Delete cloud save”); this removes the data from Firebase (see section 3a). See Google’s privacy policy: policies.google.com/privacy.

5c. Invites
When you send an invite through your phone’s share menu, the app you choose (for example WhatsApp or Messenger) receives the invite text, picture and Google Play link and handles them under its own terms. The Game only counts on your phone how many invites you sent; nothing about the people you invite is collected or stored. When the Game first starts after being installed from Google Play it may read the Google Play Install Referrer only to check whether an invite code is present; this stays on your device.

6. Code of conduct
Do not use offensive, hateful or impersonating names; do not harass other players; do not cheat, hack, modify the Game or disrupt the servers. We may block online access for anyone who breaks these rules.

7. Virtual coins, gems and items
Coins, gems, boosters, upgrades and cosmetic items are a limited licence to use content inside the Game. They have no real-world value, cannot be sold, transferred or exchanged for money, and may be lost if you uninstall the Game or clear its data, except purchases that Google Play can restore.

8. In-app purchases
You can buy gems, packs, Remove Ads and the VIP Pass with real money through Google Play. Payment, receipts and refunds are handled by Google Play under its terms and refund policy; we never see your card or payment details. Prices are shown in your currency before you pay. Gems are delivered as soon as Google Play confirms the payment. One-time purchases (Starter Pack, Remove Ads, VIP Pass, Legend Bundle) are restored automatically when you open the Game with the same Google account. The Mystery Capsule gives a random reward; its exact odds are always shown before you open it. If the law where you live requires it, ask a parent or guardian before buying.

9. Advertising
The Game is free and is supported by ads from Google AdMob: optional reward videos (you choose to watch them for a reward), a short ad break at the end of a race before the results and, at most every few hours, an ad when you come back to the app. Ads are never shown during a race, and there are no banner ads. To show and measure ads, Google may collect device identifiers such as the Advertising ID, your IP address and approximate location, and how you interact with ads, under Google’s privacy policy (policies.google.com/privacy). Where the law requires it (for example in the EEA and the UK) the Game asks for your consent first, and you can change your choice at any time in Settings → Privacy & ads. You can also reset or delete your Advertising ID in your Android settings. Remove Ads or the VIP Pass turns off ad breaks and app-open ads.

10. Victory selfies and sharing
Victory selfie images are created on your device. When you download one it is saved to your gallery. When you share one, the app or social network you choose receives the image and handles it under its own terms and privacy policy.

11. Permissions
The Android app may use network and Wi-Fi access (multiplayer, ads, purchases), vibration (haptic feedback), photo/storage access (choosing a face photo and saving race photos), the Advertising ID (ads), Google Play Billing (purchases) and notifications (two short reminders a day, which you can turn off in Settings → Daily reminders). Each permission is used only for the feature described.

12. Health and safety
Take regular breaks. Stop playing if you feel discomfort, dizziness or eye strain. Screen shake and vibration can be turned down in Settings.

13. Intellectual property
The Game, its code, graphics, sounds and name belong to its developer. You receive a personal, non-transferable licence to play it. Do not copy, resell or redistribute the Game.

14. Disclaimer and limitation of liability
The Game is provided “as is”, without warranties of any kind. Online features may be interrupted or discontinued at any time. To the extent permitted by law, the developer is not liable for indirect, incidental or consequential damages, or for loss of data or in-game items. Nothing in these Terms limits rights you have under consumer protection laws that cannot be waived.

15. Changes
We may update these Terms. When we make important changes, the Game will ask you to accept them again. Continuing to play after an update means you accept it.

16. Contact
Developer: Just Rafi, Bangladesh. Questions or requests about these Terms or your privacy: contact@justrafi.com.