PRIVACY
What Hashigo keeps.
Last updated 21 September 2026
The short version
- No account, no email, no ads, no tracking. The only permission Hashigo ever asks for is notifications, and only if you turn on the morning reminder.
- It records how you play — your moves and how long you pause — to run the leaderboard and make the game better.
- The only thing anyone else sees is the name you choose, next to your Daily score.
On your phone
Your best score, your Daily streak, a Daily you haven't finished yet, and your settings are kept on your phone. They never leave it, except as described below. Deleting the app deletes them.
What the app sends
Hashigo sends these things to its own server. All are tied to a random ID created on your phone the first time it's needed. That ID is not an account and says nothing about who you are; it exists so a Daily score can be yours rather than anyone's.
| When | What | Why |
|---|---|---|
| You post a Daily score | The display name you chose, your score, the moves you made, how long you played, and the random ID. | To put you on the leaderboard. Your moves are replayed to check the score is real before it's accepted. |
| You finish or leave any game | The moves you made, which deck you played, the mode and date, the pause before each move, total play time, when the game started, the app version, and the random ID. | To understand how the game is played — how long a Daily takes, where people get stuck, which days are too hard — and to fix what isn't working. |
| You turn on the morning reminder | A notification token from Apple, your phone's time zone (for example Europe/London), and the random ID. | To send one notification each morning at nine your time: yesterday's Daily result and that today's is ready. Turn the reminder off and the token is switched off. |
Scores, clears and the rest are worked out on the server by replaying your moves, not taken from the app. Play time is counted only while the app is open, and any single pause is counted as two minutes at most.
What Hashigo never collects
- Your real name, email address, phone number or contacts
- Your location, photos, microphone or camera
- Your device's advertising identifier
- Anything about what you do in other apps or on other websites
There are no adverts, no advertising partners, and no third-party analytics in the app. Nothing is sold, and nothing is used to track you.
Who sees it
Everyone can see the display names and scores on the Daily leaderboard, along with ladders cleared, perfects and sweeps. Your moves are never shown: a set of moves is a winning line for that day's deck.
Names are checked before they go on the board, and offensive names, links and adverts are refused. If one gets through, Hashigo can hide it: your score stays, and your name is replaced with a neutral one like "Player 3F9A".
Only Hashigo can see everything else. It is stored with these providers, who handle it only to provide their service:
- Supabase — the database. Stored in Frankfurt, Germany, within the EU.
- Vercel — hosts this website.
- Apple — distributes the app and delivers notifications, under Apple's own privacy policy.
This website
No cookies, no analytics, and no requests to anyone else. Even the fonts are served from here. Vercel, which hosts the site, keeps standard server logs, including IP addresses, for security and to keep the site running.
How long it's kept
Scores and game records are kept for as long as Hashigo runs, so leaderboards and history keep working. You can ask for yours to be deleted at any time.
Your rights
Under UK and EU data protection law you can ask to see what's held about you, have it corrected or deleted, or object to it being used. Hashigo relies on its legitimate interest in running a fair leaderboard and improving the game; your display name is something you choose to give.
To ask, email help@hashigo.ing with your display name and roughly when you played. If you're not happy with the answer, you can complain to the Information Commissioner's Office at ico.org.uk.
Children
Hashigo is a number puzzle anyone can play, but it isn't aimed at children under 13 and doesn't knowingly collect personal information from them. Please use a nickname rather than your real name on the leaderboard — especially if you're young.
Changes
If this changes, the date at the top will too.
Who runs Hashigo
Hashigo is made by Pete Trainor, who is responsible for your data. Contact: help@hashigo.ing.