TETR.IO
- The documents do not say whether your data trains AI.
- Your data is used for personalized ads, including by third-party ad companies.
- The policy allows data sales or sharing; it does not describe an opt-out.
- The documents do not say who can read your content.
They collect account, IP, device, and game data, show third-party ads, and scores stay public even after you delete.
Agent Trust Hub uses AI and may make mistakes. Review reports and confirm their contents before relying on them.
- Sells or shares your data with no opt-out
Collected
Username, IP, optional email, country, profile info, device stats, game replays, and analytics.
Read the exact line
Privacy policy
“When connecting to our Service, your IP address, as well as some statistics of the device you are using, may be logged and attached to your username.”
Training
They use it to run the game, rankings, security, error fixing, analytics, and third-party ads.
Read the exact line
Privacy policy
“These advertisements may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you.”
Sharing
Username, country, and scores can be public; ads and service vendors also get some data.
Read the exact line
Privacy policy
“This submission includes game replay data and may be displayed publicly in Global Leaderboards (called "Tetra Channel") and on your User Profile.”
Kept
You can delete an account in settings, but public scores and replays cannot be removed.
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Privacy policy
“Notwithstanding user account deletion, these can not be deleted or modified.”
Controls
Delete or edit from settings; turn off Matomo with a Do-Not-Track browser header.
Read the exact line
Privacy policy
“It is possible to opt-out of analytics data collection done through Matomo. This can be done by configuring your browser to send a Do-Not-Track header with your requests.”
Fine print
As-is service, you cover their legal costs, and they can change or stop it without notice.
Read the exact line
Terms of service
“TETR.IO may change the terms and conditions of the ToS from time to time, with or without notice to the User.”
Expand “Read the exact line” to see the source alongside the explanation.
What you can turn off
The controls and opt-outs their own documents describe, and where they say to find them.
Delete your account in settings
Account settings panel under Config
Turn off Matomo analytics with Do-Not-Track
Configure your browser to send a Do-Not-Track header
Hide your country if you do not want it public
User settings (they say you may hide country at any time)
Contact them about
Contact us at [email protected] as listed in the privacy policy
If a switch is not where they say, the deletion request above still applies.
Line by line
The lines that matter most, worst first.
Even if you delete your account, your game scores and replays stay and can stay public.
Read the exact line
Privacy policy
“Notwithstanding user account deletion, these can not be deleted or modified.”
For example, a bad game on the global leaderboard can stay listed after you close the account.
Ad partners can use browsing on this site and other sites to show you ads.
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Privacy policy
“These advertisements may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you.”
For example, an ad network could use that you played here and visited other sites to pick ads.
If someone sues them because of how you used the site, you may have to pay their legal bills.
Read the exact line
Terms of service
“You agree to and TETR.IO, its parent corporation, officers, directors, employees and agents, from and against any and all claims, damages, obligations, losses, liabilities, costs or debt, and expenses (including but not limited to attorney's fees) arising from: (i) your use of and access to the Service;”
For example, if a chat message you posted leads to a lawsuit, they can ask you to cover costs.
They can change or shut down the game without warning you first.
Read the exact line
Terms of service
“TETR.IO reserves the right to modify or discontinue the Service with or without notice to the User.”
For example, a mode you play every day could disappear overnight with no email.
Privacy rules can change as soon as they post a new page; they do not promise to email you first.
Read the exact line
Privacy policy
“We will notify you of any changes by posting the new Privacy Policy on this page. These changes are effective immediately, after they are posted on this page.”
For example, a new sharing rule could apply the next time you load the site.
How you played can be shown to everyone on leaderboards and your profile.
Read the exact line
Privacy policy
“This submission includes game replay data and may be displayed publicly in Global Leaderboards (called "Tetra Channel") and on your User Profile.”
For example, anyone can watch a replay of a match you just finished.
An ad company named Freestar collects data on the site to show ads.
Read the exact line
Privacy policy
“This Site is affiliated with Publisher First, Inc. dba Freestar ("Freestar") for the purposes of placing advertising on the Site, and Freestar will collect and use specific data for advertising purposes.”
For example, Freestar may log that you loaded a page so it can pick which ad to show.
They say under-13s should not use it, but they rely on finding out later rather than a hard age check.
Read the exact line
Privacy policy
“Our services are not designed for children under the age of 13. If we discover that a person under the age of 13 has submitted personal information to us without parental permission, we will endeavour to delete the information from our systems.”
For example, a 12-year-old could still make an account until someone reports it.
You can delete your account yourself in the game settings.
Read the exact line
Privacy policy
“You may do so from the Account settings panel, found under Config.”
For example, you open Config, go to Account settings, and delete the account there.
They say traffic is encrypted and staff access to your data is limited.
Read the exact line
Privacy policy
“We ensure all sites on our domain are encrypted via TLS and maintain high standards in data security for access to our servers, restricting access to your personal data when we do not need to access it.”
For example, your login should go over HTTPS rather than plain text.
Words to know
Legal words from the lines above, in plain English.
- opt out
- Something is on by default and stays on until you find the setting and turn it off. For example, your chats may be used for training unless you go into settings and switch it off.
- indemnify
- You promise to pay the company's legal costs and losses if your use of the service gets it sued. For example, if you post a song you do not own and the label sues the app, you owe the app's lawyer bills.
- personal data
- Any information that is about you or can be linked to you, from your name to your phone's ID. For example, your email, your IP address and the list of apps on your phone are all personal data.
How we got here · grade F · score 27/100 · 14 of 15 policy answers backed by a verified quote · 4 not stated
What does the app collect beyond what it needs to work?
They collect account details plus IP, device stats, analytics, error logs, and public game replays, not only what you type to play.
Does it record your voice, face or body, and what happens to that?
The documents do not describe collecting voice, face, or body data; this is a browser game.
Are your chats and uploads used to train AI models, and is that off by default?
Not stated in the documents.
Can employees or contractors read your conversations, and when?
Not stated in the documents.
Are you profiled or tracked for advertising?
Third-party ads, including Freestar, may use visits to this and other websites to show ads of interest.
Do they sell or share your data, and can you opt out?
They share with vendors who run the service and with ad partners; no ad-sharing opt-out is described.
What rights do they take over what you type and what the AI makes?
Not stated in the documents.
How long do they keep your data after you delete it, and can you delete it in the app?
You can delete an account in settings, but they say game replays and scores cannot be deleted even after that.
Does it build a lasting memory or profile of you, and can you see, edit or turn it off?
Not stated in the documents.
Do they commit to basic security, and have they leaked data?
They describe TLS encryption, bcrypt passwords, and limiting who can access personal data. No audit or leak history is given.
Is there a real age gate, and are teens protected?
They say the service is not designed for children under 13 and they will try to delete data if they find it, with no described age check.
Will they tell you when the rules change, and is the policy specific?
Policies are undated. Privacy changes take effect as soon as they post a new page; terms may change with or without notice.
Can they close your account without warning, and can you get your data out first?
Breaking the terms ends permission automatically, and they may modify or discontinue the service with or without notice.
If something goes wrong, who pays?
The service is as-is with broad liability limits, and you must indemnify them for claims from your use.
Do subscriptions renew on their own, and can you get a refund?
The terms describe the gameplay service as free of charge and do not set subscription or refund rules.
The privacy policy is 1,440 words at a fairly hard level (Flesch reading ease 52); the terms are 1,511 words at a college graduate level.
