Last updated 21 August 2026
The short version. Century has no accounts, no advertising, no analytics and no tracking of any kind. Nothing you do is sold or shared. The only information that ever leaves your device is what you deliberately submit to a shared leaderboard, and you can withdraw it at any time from inside the app.
Almost everything. Your century in progress, your completed settlements, your records, the Six Trials, the Book of Settlements and your settings are all stored on your device by the app. We cannot see any of it.
If you have iCloud enabled, your records, Trials, Book of Settlements and Endless unlock are also copied to your own private iCloud account so they survive a new phone. That copy belongs to you and to Apple's iCloud service; it does not pass through us and we cannot read it. Your Daily Century results are deliberately kept on-device only and are never mirrored.
Century has two shared leaderboards. Information is sent to our server only when you take part in one:
That is the complete list. We do not collect your name, email, contacts, photos, location, advertising identifier, or any device or usage analytics.
It is a random value the app generates for itself the first time it runs. It is not your Apple ID, not your advertising identifier, and not tied to you as a person. Its only purpose is so a leaderboard keeps one row per device instead of a new row every run, and so you can withdraw your own entry later. Deleting the app discards it; reinstalling creates a fresh one.
The keeper name and settlement name you sign with are shown to every other player. Please do not enter your real name, a school, an address, an email or anything else you would not put on a public noticeboard. Names are automatically screened for offensive content and rejected before they reach the roll.
Daily Century entries are kept for the day they belong to and are not retained afterwards. Endless Roll entries are kept until you withdraw them or they are struck following reports. Nothing is archived elsewhere or backed up into another system.
Century is not directed at children under 13 and we do not knowingly collect information from them. Because the only information that ever leaves a device is a random identifier and a nickname the player types themselves, no personal detail about a child is gathered. If you believe a child has published something identifying on the roll, write to us and we will remove it.
Leaderboard entries are stored on Cloudflare's infrastructure, which hosts our server. No other company receives your information. There are no advertising networks, analytics providers or third-party software development kits in Century at all.
You may ask what we hold about your device, ask for it to be deleted, or object to it being stored. In almost every case the in-app withdraw button does this instantly. If you would rather we handle it, write to centurysupport@proton.me and tell us the keeper name you signed with so we can find the entry.
If this policy changes in a way that affects what we collect, the date at the top will change and the new version will appear here before the change takes effect.
Questions about privacy: centurysupport@proton.me.