One person, eight apps, one rule.
Ashhub is an independent studio with exactly one person in it. Design, code, artwork, localisation, App Store operations and this website are all the same pair of hands.
That constraint decided the product line. There is no growth team, so nothing here asks for your email address. There is no backend team, so almost nothing has a backend. Seven of the eight apps finish their entire job on your device, and would keep working if every server we own vanished tomorrow.
The exception is Driftsea, which carries anonymous fragments between strangers and so needs somewhere to carry them. It is one-way and read-only by design, and it says so on its own page rather than burying it in a policy.
How the apps are built
Offline unless there is a real reason not to be
A mahjong scorer has no business knowing who you are. Neither does a resistor calculator. So they don't, and they structurally cannot.
Bought once, not rented
Paid features are one-time unlocks. There are no subscriptions anywhere in the line, and anything already given away free stays free.
No account, so no breach
None of the apps have sign-in. There is no user table to leak, because there is no user table.
Small on purpose
Each app does a narrow thing properly rather than a broad thing loosely. That is what one person can actually ship well.
On the App Store
Apps are published under the founder's own name, 明 齐 (Ming Qi) — that is what Apple displays as the developer. Ashhub is the studio those apps belong to, and the name used everywhere else.