Terms of Service — Gridbench
Last updated: 17 August 2026
Gridbench is a measurement app. These terms are short because the app asks little of you: there is no account to create, nothing to pay for, and nothing you have to agree to beyond not wrecking the leaderboard for other people.
By using Gridbench you accept what is below.
What Gridbench is
A set of tests that measure how you perform on visual and motor tasks, and show how that compares to other people who took the same tests.
It is not a medical device, a diagnostic tool, or a treatment. It makes no claim about your health, your abilities in general, or your future. A result describes one performance on one day, and nothing more. Nothing here is a substitute for advice from a qualified professional.
Your account
An anonymous account is created on first launch so your records and streak belong to you rather than to a device. You never give us an email address or a password, and we never ask for one.
Because the account is anonymous, we cannot recover it for you. Deleting the app deletes it from the device. If that happens, the account and everything attached to it are gone, and nobody — including us — can prove it was yours.
You can delete everything at any time: Settings → Account & data → Delete all data.
Fair play
The leaderboard only means something if the numbers on it were earned. So:
- Do not automate play. No scripts, macros, emulated input, or modified builds.
- Do not submit results you did not produce by playing the app as shipped.
Every submitted run is verified by replaying it on the server using the same code the app ran. A run that cannot be reproduced is rejected. This is automatic, it is not a judgement about you, and a rejected run still counts locally — you keep your own result, it simply does not enter the table.
If a run does not add up, we may remove it from the leaderboard. If it happens repeatedly and deliberately, we may remove the account from the leaderboard entirely.
Display names
If you choose a name for the leaderboard, it is shown to other players. Names must not impersonate someone, advertise anything, or be abusive. Players can report a name.
We may remove a name that breaks those rules. Removing a name does not remove your scores — you appear as "Anonymous" and can pick another one.
What it costs
Gridbench is free, with no advertising.
Paid features may be added later. Whatever is free today stays free: we will not take something you already have and put it behind a payment. Any paid feature will be cosmetic — it will never affect a score, a level, or a leaderboard position.
What we do not promise
The app is provided as it is. We try hard to make it correct and we test it, but we do not promise it will be free of faults, available without interruption, or that your data will survive events outside the app — a lost phone, a deleted install, a platform change.
To the extent the law allows, we are not liable for loss arising from using the app, including loss of records, streaks or leaderboard position.
Records live on your device. The leaderboard and the comparison distributions live on our servers. Neither is a backup of the other.
Stopping
You can stop at any time by deleting your data or the app; nothing continues after that.
We may suspend access for someone who breaks the fair-play rules above. We do not otherwise have a reason to.
Changes
If these terms change materially, the app will say so before the change takes effect rather than quietly updating a date at the top.
Who we are
Gridbench is made and published by Roman Nikitin, trading as Nikro — the same publisher as Skein. "We" and "us" in this document mean that one person.
Avenida Marina Baixa 7 03509 Finestrat, Alicante Spain
Written to support@nikro.app is the fastest way to reach us, and it reaches the same person.
Contact
Governing law
These terms are governed by the law of Spain, where Gridbench is made.
If you use Gridbench as a consumer, that choice does not take away any protection given to you by the mandatory consumer law of the country you live in, and it does not stop you from bringing a claim in the courts of that country. Where those rules and these terms disagree, those rules win.