Help & Support
Questions, ideas or a stamp that has moved? Write to us at hello@sumistamps.app – we usually reply within a few days.
Frequently asked questions
I didn’t get the activation email
Please check your spam folder first. In the app, try to sign in with your email and password – Sumi will offer to send the activation email again. The link is valid for a limited time and can only be used once.
I tapped the activation link, but Sumi shows an error
Your address is usually confirmed as soon as you open the link. Just sign in with your email and password. If Sumi says the address isn’t confirmed yet, request a new activation email from the sign-in screen.
I forgot my password
On the sign-in screen, tap “Forgot password?”. We’ll send you a link to choose a new password. Afterwards you’ll receive a short security notice that your password was changed.
How do I delete my account?
In the app, open Settings → Delete account. Your account, collection, favorites, notes and all your photos are deleted. Stamps already confirmed by the community remain, without any link to you.
When will my photo appear?
We review every photo before it goes public, usually within 24 hours. Until then, only you can see it, marked “In review”.
A stamp is missing, has moved or is gone
Open the stamp in the app and answer “Is the stamp still there?” with “Yes, it exists” or “Not there anymore” – after a few confirmations the map updates automatically. A new stamp can be added with “Report a stamp” (the “+” button on the map).
How do I report inappropriate content?
Open the stamp, tap “…” and choose “Report this entry” or “Report photo”. You can also block other users there. We review reports promptly, usually within 24 hours. You can also email us at hello@sumistamps.app.
Does Sumi track my location?
No. Your location is only used on your device – for the map and, if you turn it on, for notifications about stamps nearby. It is never sent to us. Details in our privacy policy.
Where does the stamp data come from?
From official lists published by railway companies (JR East, JR West, private railways and more) and from finds confirmed by the community. Station data is based on the national land information of Japan’s Ministry of Land, Infrastructure, Transport and Tourism.