SaturnGetting your licence back
Try these in order — the first two need nothing from us.
On another Mac. Sign into the same iCloud account and open Saturn. The licence travels with your vault, so there is nothing to type in.
From the file. If you saved the licence file after buying, use Settings ▸ Licence ▸ Open Licence File… and choose it.
From your inbox. Your licence was emailed to the address you bought with. Search for Saturn.
Still stuck. Email support@saturnnotes.com from the address you bought with, and we will re-issue it. We deliberately have no self-service recovery form: one that only asks for an email address would hand your licence to anyone who knows it.
Before you write in
Requirements. Saturn needs macOS 15 (Sequoia) or later. It is a universal binary, so it runs natively on Apple silicon and Intel Macs, and it is notarized by Apple. An iPhone and iPad version is in development.
Updates. Saturn updates itself — check manually from the Saturn menu. Every 1.x update is free.
Refunds. Within 30 days of buying, email us and you get your money back. No reason needed. See the terms.
Your notes. They are Markdown files in your own folder. If something has gone wrong with the app, open that folder in Finder — everything you have written is still there, readable in any editor.
Common questions
What is Saturn?
Saturn is a Markdown notes app for Mac. It keeps every note as a plain .md file in a folder you own — your "vault" — and syncs that folder through your own iCloud Drive. It requires macOS 15 (Sequoia) or later and costs $29 once, after a 14-day free trial.
Where are my notes stored?
Saturn's notes are ordinary Markdown files in a folder you pick — by default, a Markdown Notes folder in iCloud Drive, though any folder works, including a local one. You can open, edit, move, back up, or version-control those files with any other tool while Saturn is running; it watches the folder and picks changes up within about a second.
Does Saturn work with an existing Obsidian vault?
Yes. Saturn can open a folder of Markdown you already keep, including an Obsidian vault, and it reads the conventions those files already use: YAML frontmatter, [[wiki-links]] with aliases, tags, and - [ ] task lists. It adds an id field to a note's frontmatter so a file stays linked to its record across devices, and leaves everything else it doesn't recognise untouched.
Do I need an account to use Saturn?
No. Saturn has no accounts and no sign-in. Sync is your own iCloud Drive, so your notes move between your Macs without passing through a server belonging to us, and the app keeps working exactly the same with no network at all.
Is Saturn private?
Saturn makes no network requests of its own. It has no analytics, no telemetry, and no crash reporting, and the app contains no code that uploads your notes anywhere. The only two times it talks to the internet are checking for its own updates and, once, when you buy a licence.
How much does Saturn cost?
Saturn is $29 as a one-time purchase, with a 14-day free trial first and no card required to start it. That is a launch price and will rise to $49; buying now locks in the lower one. There is no subscription.
What happens when the trial ends if I don't buy?
When Saturn's trial ends the app becomes read-only rather than locking you out. Every note stays open, searchable, exportable, and copyable, and the files are in your own folder regardless — the trial gates writing new text, not reaching what you already wrote.
Is the purchase a subscription?
No. Saturn is bought once and is yours permanently. Every 1.x update is free — including security and macOS compatibility fixes — for at least 5 years from purchase, and the app never expires or phones home to check.
Can I use one licence on more than one Mac?
Yes. One Saturn licence covers one person on all of their Macs. On a second Mac, signing into the same iCloud account brings the licence along with the vault, so there is nothing to type in.
What are Saturn's system requirements?
Saturn requires macOS 15 (Sequoia) or later and runs natively on both Apple silicon and Intel Macs as a universal binary. It is notarized by Apple and updates itself. An iPhone and iPad version is in development.
Can I get a refund?
Yes — Saturn has a 30-day refund policy, no questions asked. Email support@saturnnotes.com within 30 days of buying and you get your money back.
Still stuck?
Say what happened and what you expected. Screenshots help.