Sunclax
Terms of use
The short version: Sunclax is software you run on your own Mac, on your own files. Here is what that means.
The app
Sunclax is provided as it is, with care but without a guarantee that it fits every purpose. Keep a copy of your folder — the files are plain text, so any backup tool works.
The trial, Pro, and what is free
Everything in Sunclax Pro is free for 30 days after the first launch, without a card, an account or a mail. After that a key keeps Pro: the heatmap and shortcuts, the 7- and 30-day history, every other board and layout, hands and fingers, the report, the widgets, Practice with no daily limit and Ask AI.
Without a key the free part stays, forever: the menu bar, today — its total, dial, hours and clicks — and one Practice lesson a day. Nothing is lost — a key opens every day since the first — and no file of yours is touched.
Licence
One person, one key — it works on your other Macs too. No account — your email is the receipt.
What you buy
A one-time licence, for one person: the same key works on your other Macs. Sunclax Pro is bought once, and every update is included. The price is on the pricing page.
How the key arrives
After the purchase you get an email with your key and an Activate link to the activate page, where one button opens the app with the key filled in. In the app: Sunclax › Settings › Licence › Enter key. The key lives in that Mac's keychain, never in your folder.
When the key is checked
The key is checked when you activate a Mac and when you deactivate one, and once after a renewal or refund date. A licensed Mac asks the shop nothing more: a key bought once is never asked again. If the shop cannot be reached, nothing changes — a licensed Mac keeps working for as long as it is offline. Never during the trial.
Moving to another Mac
Settings › Licence › Deactivate this Mac frees its place. Then enter the key on the new one.
Lost your key
Settings › Licence › Send my key again opens the shop's customer portal on our domain: your orders, receipts, the keys, the card. A magic link to the email you bought with; there is nothing to log into.
The licence door
Activation, the one check after a renewal or refund date, and deactivation go through maxclax.com/api/sunclax/license/ to the shop: the key and a name for this Mac, nothing else. The door refuses a key for another product and slows down repeated tries. What it keeps is on the privacy page.
Updates and support
The app asks this site every six hours whether a newer version is out, and installs one in place after you say yes. Support is Help › Send feedback in the app, or Get in Touch on this site; a person reads it.
Refunds
Within 30 days of a purchase, no questions asked. Use Get in Touch on this page with the email you bought with. After a refund the key stops unlocking Pro; your files stay where they are, and the free part keeps working.
Your data
Covered on the privacy page: what is kept and what never is, the few things the app can send and the switch for each, and what never leaves the Mac.
Changes
These terms may change with a new release; the date of the last change is at the foot of this page.
Last change: 12 October 2026
By using Sunclax you agree to the Terms of Use and the Privacy Notice.