$6 a month, or $50 a year — everything included, no tiers, no credits, no per-word charge. It’s free for the first 30 days. The one thing Proselon doesn’t charge for is the AI: the co-writer works with your own Claude, ChatGPT, or Grok account — you sign in the way you always do — or a free local model on your own Mac, and we don’t sell it or mark it up. No API keys or metered usage from us.

Downloading Proselon and creating your account are free. When you start your trial in the app, you enter a card, and then you have the whole app free for 30 days — every feature, every engine, unlimited co-writing, not a stripped-down sample. After 30 days it becomes $6 a month (or $50 a year if you choose annual) — and we email you before that first charge, so it’s never a surprise.

Because we build for serious writers, and a card at the door keeps the trial for the people who mean to use it. The policies around it are simple and stated up front: we email you before we charge you, refunds come on request, and cancelling is one click.

Not for 30 days — and never without warning. Your first charge is at the end of the free trial, and we email you a reminder before it happens. We send a heads-up before the first renewals too. If you cancel before the trial ends, you’re not charged at all.

Cancel in one click, any time, from your billing portal — no email chase, no retention maze. And refunds are simple: anyone who asks gets one. If you were charged and changed your mind, email us and we’ll reverse it. Either way your manuscript is still plain files in your own Documents folder — cancelling Proselon never touches your book.