Crustware

Small, careful apps for people who would rather be outside. No ads, no accounts, and nothing watching you.

crust (n.) — what forms on someone who has been at it long enough to know better, and goes anyway.

What we make

The climber's weather. Temperature plus humidity, one number, every hour and sixteen days out — and a warning when the rock is set to coke-bottle.

That is the whole catalogue. It is a short list on purpose.

The same rules apply to everything with this name on it. They are not marketing; they are the reason the apps are small.

One permissionand it is internet. Never location, never contacts, never storage.
No accountno sign-in, no email, no password to forget.
Nothing watchingno analytics, no trackers, no ads, and no log of what you looked up.
Your data stays yourskept on your phone, and left out of backups and device transfers.
Works with no signalthe last answer is saved, and shown with the time it was taken.
Light on your planas few requests as the job needs, and none you did not ask for.
Public data, creditedthe sources are named on every page that uses them.