One payment. Every Pro feature, for as long as Inkbreaker exists. Add-ons like Mailing lists and Own domain are separate monthly charges. Fifty slots total, and when they’re gone, they’re gone.
Writers usually buy this shelf one tool at a time: something to organize drafts and scenes, something to plot timelines, something for worldbuilding, something to edit and measure prose, something to format and export. Bought separately at typical lifetime prices, that shelf commonly runs past $700, and none of it talks to each other. Pro does the work of that shelf in one place, with a community of writers built in.
And the part no shelf of tools can match: the Meridian Engine. It measures your prose with deterministic linguistics, so the same piece always gets the same measurements, and no AI ever touches your work. Own Pro for life and the engine is part of what you own.
The Pro membership, for as long as Inkbreaker exists, with the same Pro features the monthly and annual plans have at the time. What Pro includes can change over time at Spiffai’s discretion. Add-ons are not part of Pro: Mailing lists (for letters) and Own domain are separate monthly charges, only if you choose them.
Anything beyond the Pro membership on one personal account: add-ons such as Mailing lists and Own domain, other Spiffai products and services, now or in the future, team or organization plans, extra seats or accounts, and any other kind of licensing.
It’s a limited launch offer for our earliest writers, and fifty is the whole run. Gift purchases count against the same fifty.
No. It is $499 for as long as lifetime is available, and there are no sales. After December 31, 2026, lifetime is gone for good.
Yes. The unused portion of your current annual term, based on what you actually paid, comes off the lifetime price. Sign in and this page shows your exact credit and final price before you commit. Redeeming ends your annual subscription. Monthly plans don’t carry a meaningful unused balance, so there’s no monthly credit.
Buy a slot for any writer, whether or not they’re on Inkbreaker yet. They get a one-time claim code by email. Until they claim it, you’ll see it as sent and unclaimed. Gift slots cost the same as any other slot.
Lifetime means the life of Inkbreaker. If Inkbreaker ever winds down, your license winds down with it. We’re building for the long haul, and fifty lifetime licenses are part of how.
The same people who can hold an Inkbreaker account: adults 18 and up. Gift buyers confirm their recipient meets that bar at checkout.