Terms

These terms cover Fervio, the story mapping service for GitHub Projects served at fervio.co. Using the service means you accept them. Last updated 13 August 2026.

Who provides the service

Fervio is built and run by an independent developer in Japan. There is no company behind it and no support team. Write to [email protected] and the person who built it reads it.

What you need

A GitHub account, and the right to use the Projects and repositories you open in Fervio. Fervio acts strictly with the permissions you granted it on GitHub, so anything you cannot do on GitHub, you cannot do here either. You are responsible for what happens under your account, including what the people you invite to a map do with it.

Your work stays yours

Issues, milestones and Projects live in GitHub and remain yours under GitHub's terms. Fervio keeps only what the privacy page lists — mainly the card order of a map, which GitHub has nowhere to store. Nothing you write is used to train a model, and nothing is sold or shared beyond the services named on that page.

Fervio writes back to GitHub when you move a card. Those writes are real changes to your issues, made in your name. Fervio cannot undo them for you.

What is not promised

• Availability. The service is provided as it is, without a guarantee that it will be up, correct, or fit for any particular purpose. It may change or stop.
• Your data as a backup. Fervio is not a backup of your GitHub data. Keep GitHub as the record.
• Liability. To the extent the law allows, liability for loss arising from use of the service is limited to the amount you paid in the twelve months before the loss. Where the law does not allow that limit, it does not apply.

Fair use

Do not use Fervio to break the law, to break GitHub's terms, to attack the service or other people's accounts, or to resell access as your own product. Automated access that degrades the service for others is not allowed. Accounts doing any of this can be stopped without notice.

Plans and payment

The free plan has a limit on how many maps you can keep editable. Going over the limit does not delete anything — the maps beyond the limit become read-only until you choose which ones stay editable or move to the paid plan.

Payment is handled by Polar, which acts as the merchant of record and issues the receipt. Fervio never sees your card. Subscriptions renew until you cancel, and cancelling stops the next renewal; the plan stays active until the end of the period you already paid for. Refunds are handled case by case — ask, and if the service did not do what this page and the home page say it does, you get your money back.

Ending it

You can stop at any time by revoking Fervio's access from GitHub, under Settings → Applications. Deleting a map removes its layout, its member list and any share snapshot. Write to [email protected] to have the remaining record of your username and sign-ins removed.

Changes and governing law

These terms change as the service changes. Material changes are announced on this page with a new date; continuing to use the service after that means accepting them. Japanese law governs these terms, and the Tokyo District Court is the court of first instance for any dispute.