This policy covers all three drills — Daily Math, Daily Kanji and Daily Proverbs — together with their introduction and portal pages.
The Match Record service, also listed on the portal page, is a separate service handling a different kind of information. It is not covered by this policy.
These are free learning drills run by one individual, not by a company or organisation.
For questions, bug reports, or requests to delete your record, please write to the address below. It is read by one person, so a reply may take a little while.
You can play without signing in. In that case a cookie (a session ID) stored in your browser is what your record is tied to: which problems you answered, how many you got right, how long each answer took, and which pictures you have collected.
You are never asked for a name, address, phone number or date of birth. As long as you play as a guest, the record cannot be traced back to a person.
Signing in with a Google account is offered so that a record can continue on another device. If you do, the email address, display name and account ID supplied by Google are stored, and the record you built as a guest is carried over to that account.
Signing in is optional. Every problem and every feature works the same way without it.
The server records the IP address, time, and browser type (user agent) of each request. These are used only to investigate faults and to deal with abuse, and are deleted automatically after 30 days.
It is used only for the following.
It is never sold or handed to third parties, except where disclosure is required by law.
The introduction and portal pages use Google AdSense, a third-party advertising service. Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites.
Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to this and other sites. Users may opt out of personalised advertising by visiting Ads Settings, or opt out of a third-party vendor's use of cookies at www.aboutads.info.
Affiliate adverts (through programmes such as A8.net) may also appear at the foot of the drill pages. These too use cookies, to record which advert a visit to a shop came through.
There is not a single advert on the screen where the problems are answered (the blackboard). Nothing interrupts a child who is concentrating — that is a rule we keep.
No analytics tool such as Google Analytics is used. Apart from the advertising cookies and the server logs described above, nothing tracks visitors.
These drills are built for children to open and use by themselves. That is exactly why a guest is never asked for anything that could identify the child.
Whether to sign in with a Google account is for a parent or guardian to decide. It exists only to carry a record across devices; nothing else changes.
For a guest record, clearing your browser's cookies severs the link, and the record can no longer be reached.
To have a signed-in record deleted, please write to tass1240@gmail.com.
Every care is taken with the content, but no guarantee is made that it is free of error, and no responsibility is accepted for any loss arising from its use.
This policy may be revised when necessary. Any revision will be published on this page.
Last updated: 20 August 2026