Terms of Use
1. Who these terms are with
“TEZZVO”, “we” and “us” means TEZZVO, the publisher of Topper10 and of this website, reachable at hello@tezzvo.com. “The app” means Topper10 and any other game we publish under the TEZZVO name. “You” means the person using the app.
2. Accepting these terms
By downloading or using the app you agree to these terms and to our privacy policy. If you don’t agree, don’t use the app. If you use the app through an app store — today that is Google Play — that store’s terms also apply to your download.
The app is not directed to children under 13 (or the applicable age of digital consent where you live, up to 16 in parts of the EEA), we will list it with a target age group of 13+, and it is not enrolled in Google Play’s Designed for Families programme. Please don’t use it if you are below that age. The same statement, with what it means for data, is in §3 of the privacy policy.
3. Your licence to use the app
We grant you a personal, non-exclusive, non-transferable, revocable licence to install and use the app on devices you control, for your own non-commercial entertainment. You may not copy, sell, rent, sub-licence, reverse-engineer (except where the law says you can), or try to extract the app’s question data in bulk.
4. Playing without signing in, and how the backup works
There is no sign-up wall: you can play the whole game without ever signing in. Your progress — streak, coins, achievements, Journey position, settings — is kept on your device, and that copy is the one the game plays from.
Cloud backup is on, and it is not something you switch on. In a released build the app creates an anonymous backup account for itself the first time it needs one, and mirrors the progress part of your save to Google Firebase — without asking you, and with nothing that switches it off before the first upload. We would rather say that plainly than let the word “optional” do work it cannot do. What is mirrored is progress only: your display name and your avatar are stripped on the device before every upload, and puzzle text is not uploaded except for the one case §2 of the privacy policy spells out. If you want it gone, Settings → Data → “Delete my cloud data” deletes it and the anonymous account it was stored under, immediately; your on-device progress is untouched and you can keep playing. That control also switches cloud backup off on that device, and leaves it off: we stop syncing and we do not create a new anonymous account to sync into, on that launch or any later one, until you ask for one — either by tapping “Turn cloud backup back on”, which starts a brand-new account, or by completing a sign-in to an Apple or Google account you already have. §6 of the privacy policy sets out the two things that deletion does not reach.
What is your choice is signing in with Apple or Google, under Settings → “Back up your progress”. Signing in attaches the backup to an account so it can be restored on a new phone, which an anonymous backup cannot be — an anonymous account is tied to that installation and is lost if you uninstall or clear the app’s data. You can sign out, or delete the account entirely with Settings → Data → “Delete my account”. The other opt-in is the friends leaderboard in §5. What each of these stores is set out in our privacy policy.
5. Friends leaderboard
The leaderboard is opt-in and invite-only. If you choose to join or create a group, the nickname, avatar and daily scores you publish there — and the name of a group you create — are visible to that group’s other members. Choose a nickname you are willing to show them: nothing unlawful, hateful, harassing, or impersonating someone else.
The person who created a group can remove a member, rotate the group’s invite code, or blank a member’s nickname for the day, from inside the app. On a report from a member or on our own review, we may blank a nickname, remove a member, clear a day’s scores, delete a group, or block an account from the leaderboard entirely.
You can leave a group at any time. Leaving ends your membership and deletes every score you already published to that group, on every day. Being removed by the group’s owner reaches the same end: the current day goes at once, and the rest go the next time your own phone opens the leaderboard or finishes a daily. §2 and §5 of the privacy policy say exactly what happens, and what is left if a phone never comes back.
6. Acceptable use
When using the app, you agree not to:
- break the law or infringe anyone else’s rights;
- interfere with the app’s normal operation, probe or attack its infrastructure or any third-party service it uses, or use automated means to play or to scrape content;
- circumvent, or help others circumvent, any limits or advertising in the app, or any in-app purchase flow we may add later (§7);
- misrepresent the app as your own or redistribute it outside the official app store listing.
7. In-app purchases and virtual items
The app offers virtual items — coins and power-ups — that you earn by playing. There are no in-app purchases today: nothing in the app can be bought with real money. Virtual items have no cash value, cannot be exchanged for money, and may change or be discontinued. If we ever add a paid option, the purchase will be processed by the app store and subject to that store’s refund policy, not ours, and we will update these terms and the “last updated” date first.
8. Advertising and third-party services
The app shows ads served by Google AdMob, and uses Google Firebase for the cloud backup, the friends leaderboard and, if you sign in, your account record. Both are running in the released build. The app also uses PostHog for anonymous product analytics, and carries the switch that turns it off — Settings → Privacy → “Analytics & crash reporting”. Analytics runs in any build that carries an analytics key, and we attached one on 14 September 2026. A build made after that sends a fixed list of anonymous events to PostHog in the United States; a build made before it carries no key, never creates the analytics client, and sends nothing at all. A copy is on the sending side from the moment it runs a bundle built after that date, however that bundle reached it — a Google Play release, closed testing included, one of our internal test builds, or an over-the-air update, which does not go through Play. Wherever it is on, it is on unless you turn it off — and it never sends your name, your avatar, the answers, or the words you type. Our own crash reporting is not active: no crash-reporting SDK of ours is in the shipped build at all, so we receive no crash reports. The Google Mobile Ads SDK still reports its own faults to Google, which is why Crash logs appears on our Play data-safety form. That switch covers our own analytics only — it does not turn off ads or the advertising ID, which have their own controls. Third-party services are governed by their own terms and privacy policies, and we are not responsible for third-party content, including the content of ads. See the privacy policy for the full list, what each receives, and which are switched on.
9. Our content and yours
The app, its design, code, wordmarks, logos and question content are owned by TEZZVO or its licensors and are protected by intellectual property laws. Trivia facts themselves are not owned by anyone; the particular selection, wording, translation and arrangement in the app are ours. Any display name you set is used only on your device; a leaderboard nickname, the avatar shown beside it, and the name of any group you create are shown to that group’s members (see the privacy policy). Either way you are responsible for not choosing something unlawful or infringing.
If you use “Found an error?” after a puzzle, the app opens your own mail app with a short report addressed to corrections@tezzvo.com and you send it yourself — so we receive whatever note you wrote and the address you send it from. We use those reports to correct the question content, and nothing you write there is published or shown to another player.
10. Availability and changes
We may update, suspend, or discontinue the app or any feature at any time. We may also update these terms; if we make a material change we will update the “last updated” date and, where practical, show an in-app notice. Continuing to use the app after a change means you accept the updated terms.
11. Disclaimers
The app is provided “as is” and “as available”. To the extent the law allows, we disclaim all warranties, express or implied, including fitness for a particular purpose and that the app will be uninterrupted, error-free, or that answers and rankings are accurate or current. Nothing in these terms limits rights you have as a consumer that cannot be limited by law.
12. Limitation of liability
To the extent the law allows, TEZZVO will not be liable for indirect or consequential loss, loss of data, or loss of progress, arising from your use of or inability to use the app. Nothing here excludes liability for death or personal injury caused by negligence, for fraud, or for anything else that cannot be excluded by law.
13. Governing law and disputes
These terms are governed by the law of the place where TEZZVO is established, and the courts of that place have non-exclusive jurisdiction over any dispute arising from them.
None of that takes away the consumer-protection rights of the country you live in. If you are a consumer, you keep the protection of the mandatory rules of your own country and you can always bring a claim in its courts. Before going that far, please write to us — most things are quicker to fix by email.