Every story deserves the right tools
Start free with the core writing tools. Upgrade when your world outgrows one project — not before.
Free
- Manuscript editor, characters, locations, timeline
- 1 project
- Export to Markdown
- Offline-first — works without internet
No credit card required.
Writer
- Everything in Free, plus Plot Grid, Notes, Encyclopedia
- Up to 5 projects
- No content limits
- Auto-backup to your Google Drive or GitHub
- Restore projects on any device
Auto-renews monthly. Cancel anytime.
Pro
- Everything in Writer, plus Relationship Graph
- Unlimited projects
- Export to PDF and EPUB
- Grammar and style analysis
Auto-renews monthly. Cancel anytime.
Lifetime
Wave 1 founding price — rises after 200
That's less than 16 months of Pro.
- Full Pro access, forever
- Every future feature at no extra cost
- Protected by the "Forever Yours" Promise
- Never think about a subscription again
One payment, no renewals.
The price shown is the price you pay. See our Terms of Service for refund and cancellation details.
The “Forever Yours” Promise
Asermu wasn't built by a working novelist. It was built by someone who spent years procrastinating on writing by auditioning every writing app instead — long enough to watch tools come and go, and to know exactly what it feels like when the one you trusted disappears. A startup shuts down. A company gets acquired. Your data sits behind a login page that no longer works.
I am not going to let that happen here. If Asermu ever shuts down, I will release standalone installers for Windows, Mac, and Linux so that every lifetime buyer keeps a fully working app. The offline features — your manuscript editor, characters, locations, timeline, plot grid, notes, encyclopedia, and everything else that does not require a server — will keep working indefinitely. No expiration date. No phone-home check. Your copy of the app is yours.
Your stories belong to you. Your worldbuilding belongs to you. The tool you used to create them should too. That is the promise, and it is not negotiable.