Mycelium privacy policy
Last updated: November 8, 2026
Mycelium is a calm idle game for iPhone, made by one person. This page says what the game does with your information. The short version: there is no account, and the game collects nothing about you. The one time it talks to a server of ours is when you redeem a gift code.
What stays on your phone
Your game progress is saved on your phone, in the game's own storage. It holds your numbers, what you own, your settings and the purchases it was paid for. It holds nothing that names you. Deleting the game deletes the save.
What you can send us, and only if you choose to
Send feedback and Report a problem in Settings open a mail draft addressed to mycelium@quietroot.dev. You read the whole draft before anything leaves your phone, and nothing is sent until you press Send in your own mail app.
A feedback draft carries the game version, the version of your save, your iOS version and your phone model (such as "iPhone17,1"). If you switch on "Attach my save", it also carries your save file.
A problem report can carry, as separate parts you can read and remove: a summary of the game (your numbers, what you own, your settings and how the picture is drawing), the game's own notes from this session, warnings from your last few sessions, crash and hang reports iOS made for the game, and your save. The report screen lists each part before you send. It also carries your player ID, a random code the game made when it started, one for each save, so we can make a thank-you gift code that works in your game. It says nothing about you or your phone.
Redeem a gift code sends the code you typed and your player ID, the same random code described above, to our gift service. It runs on Cloudflare, as a Cloudflare Worker at gifts.quietroot.dev. The service keeps the code, which player ID used it and when, so that a code works only once (a code shared with everyone, such as one posted on social media, works once for each player). None of that names you or your phone.
To stop people guessing codes, the service counts failed tries (a mistyped code, a code already used, or a code made for someone else) for each minute. That count is filed under your IP address and your player ID. It is deleted within an hour, usually within ten minutes. A redeem that works stores no IP address and no count, and the service never stores what a failed request contained.
Cloudflare's network handles every request to the service, and to the pages that host this policy and the support page. Like any web host, Cloudflare processes the IP address and traffic details of each request. Its own privacy policy lists "IP addresses, traffic routing data" for people who visit a customer's sites, and says it keeps personal information for as long as its business purposes need, without giving a fixed time. We don't turn on Cloudflare's request logging for the gift service, so we keep no log of visits. We add no cookies, scripts or analytics to these pages. Cloudflare's policy is at https://www.cloudflare.com/privacypolicy/.
A mail you send reaches us with your email address and whatever name your mail account shows, because that is how mail works. We use what you send to fix the problem and to reply to you. We keep a mail for as long as it is useful for that and delete it when it is not. We don't sell it or share it.
What the game does not do today
- It has no accounts and no sign-in.
- It doesn't collect analytics or tracking data.
- It shows no ads.
- It contacts a server of ours only when you redeem a gift code, as described above. Nothing else is sent over the network.
- It doesn't read your contacts, photos, location or microphone.
Children
Mycelium is not aimed at children and doesn't ask for anyone's age or any personal details.
Your choices
- Don't use Send feedback, Report a problem or Redeem a gift code, and nothing leaves your phone.
- Ask us to delete a mail you sent, by writing to mycelium@quietroot.dev.
- Delete the game to delete its save from your phone.
Changes
If this page changes, the date at the top changes with it. Any new use of your information will be described here before the version that does it reaches you.
Contact
Questions, or a request about your information: mycelium@quietroot.dev