01In the current build
A focused writing canvas
Write in a clean document workspace designed to keep the words in front of you.
Buyonce.ai studio
In development
Writerbox
Write it yourself. Get better help.
A local-first writing workspace where AI helps you clarify, critique, and revise without taking over your work.
Writerbox is being built in public. This page distinguishes what exists in the current build from the larger launch direction.
The actual application
A real look at the current build.
No concept art. This is Writerbox running today: a focused document editor, essential formatting controls, and the ChatGPT connection panel.
Feature integrity
What exists in Writerbox today
A short list on purpose. Planned coaching and file workflows stay off the feature list until they are real.
02In the current build
Formatting without clutter
Use the essential document formatting controls without turning the app into a dashboard.
03Preview
Use your ChatGPT access
Connect through ChatGPT or Codex without creating and managing a separate API key.
The direction
Better help, without giving away the writing.
Most AI writing tools start by offering to produce more words. Writerbox starts with a different question: what would help you see your own draft more clearly?
- 01
See what the draft is doing
Surface gaps, weak claims, and places where the thought has not landed yet.
- 02
Get critique without surrendering authorship
Use questions and suggestions as material for your own judgment.
- 03
Revise intentionally
Choose every change instead of accepting an invisible rewrite.
Clear terms
Ownership, without fine print gymnastics.
The commercial model should be as focused as the product. Here is what the launch offer means in plain language.
Individual ownership
One purchase belongs to one individual and can be used on their personal devices, including for professional writing.
Included updates
The purchase includes compatible Writerbox 1.x updates. Future major versions are optional purchases.
Offline-friendly
Writing remains available offline after purchase verification. Temporary service outages do not lock a verified customer out.
Your AI relationship
AI features require eligible ChatGPT or Codex access. OpenAI controls plan eligibility, limits, availability, and any related charges.
System requirements
Made for the Mac.
- Platform
- macOS
- Minimum version
- The final minimum macOS version will be confirmed before checkout opens.
- AI features
- ChatGPT or Codex account required for AI features.
- Writing
- Available offline after purchase verification.
Before you buy
Questions, answered plainly.
Is Writerbox a subscription?
No. Writerbox 1 is a one-time purchase. You can keep using the version you bought without an ongoing Buyonce.ai subscription.
Does Writerbox write for me?
That is not the goal. Writerbox is being designed to question, critique, and suggest while leaving the words and final decisions with you.
What happens when Writerbox 2 arrives?
Your Writerbox 1 purchase keeps working and includes compatible 1.x updates. A future major version would be an optional purchase, never a forced upgrade.
Can I use Writerbox offline?
Writing remains local and available offline after purchase verification. AI features naturally require a connection to the AI provider.
What AI account do I need?
The launch integration is designed for eligible ChatGPT or Codex access. OpenAI controls plan eligibility, availability, and usage limits.
Writerbox 1
A focused writing tool. Nine dollars, once.
Get launch updates
Sales open when the macOS build and recovery download are ready.