Short, because there isn’t much to say.
Our apps don’t collect your personal information. They have no advertising, no analytics and no tracking of any kind. Almost everything below is a description of things we don’t do — and the parts that aren’t, we have written out in full rather than summarised.
What we collect in the apps
Nothing. Our apps contain no analytics, no advertising software, no third-party SDKs that phone home, and no device or advertising identifiers. We do not know how often you play, when, or on what.
What stays on your device
Scores, streaks, saved games, routines and settings are written to the app’s own private storage on your phone. They are not uploaded, backed up to us, or shared between apps. Uninstalling the app removes them.
Internet access
Every current app works fully offline and makes no network requests. If a future app needs a connection for a feature, its app page will state exactly what it sends, to where, and what happens if you decline.
Permissions
Apps request the minimum needed for a feature to work, at the moment it is used, with the reason stated in plain language on the app page. Declining a permission never disables an unrelated part of the app.
This website
Browsing the site stores nothing and requires no account. There is no advertising and no cross-site tracking, and we run no analytics. If you sign in with Google to vote or post, we store the email address Google gives us, the date your account was created, your votes, and any feature request or app idea you write. That is the whole list — we ask Google for no other information, and we do not sell or share it or add you to any list. Your sign-in is kept in a cookie on your own device rather than in a record on our side.
The contact form
The contact form needs no account, and it is stored separately from any account you may have. We keep what you send — your message, and the name and email address if you chose to give them — until the matter is dealt with, and then we delete it. It is used to reply to you and for nothing else. Because these messages are not linked to an account, deleting your account does not remove them; ask us and we will.
Deleting your account
Ask us and your email address and your votes are deleted outright, and the vote counts they contributed to are corrected. Feature requests and app ideas you posted stay, with your name detached from them — deleting them would take other people’s votes and other people’s ideas down with yours.
Children
Our apps are suitable for children and collect no information from anyone, of any age. There are no ads, purchases, external links or social features.
Changes to this policy
If it ever changes, the date at the top changes with it and the previous version stays available in the site’s public repository. Nothing is quietly rewritten.
Verifying any of this
You do not have to take our word for it. Each app’s source code is public, and so is this website’s — the absence of tracking is something you or anyone else can confirm directly.
Questions about any of this
Send it through the contact form and pick “Privacy question”. If you’d rather verify than ask, every app’s source code is public.