A Persona-Distilled
Writing Tool for macOS
Writing is not rhetoric — it is borrowing another mind to think your thought again.
InkSoul lets you load a thinker's epistemology · argument chain · writing axioms into your Mac,
so a different mind can polish, extend, or interrogate what you wrote.
Four writing surfaces
Compose
An immersive writing canvas. Vertical / horizontal switchable, ink-grey palette — only you and the text.
Polish
Select a passage and a thinking style. A three-stage pipeline produces a parallel rewrite. Adopt paragraph by paragraph.
Extend
From a one-line prompt or a snippet, let another mind expand structure, framing, and rhythm.
Deep-Read
Read a piece and ask why it works. Three-layer dissection: stance, argument chain, writing axioms.
Five built-in writing schools
InkSoul ships with five thinking frameworks, each distilled by the developer from publicly available work into a triplet of "epistemology · argument chain · writing axioms." Switch them inside the app with one click.
Restrained · Observational
Record the most tense facts in the calmest tone. Let detail replace emotion; suspend moral judgement.
Rational · Dialectical
Doubt popular opinion; dissect consensus with logic. Wit is the by-product of intellect.
Insightful · Human
Truth lives in detail; contradiction is more honest than coherence. Amplify a small human moment.
First Principles · Breakthrough
Whatever is popular is partly misunderstood. Move from observation to principle, not the other way.
Raw · Network-Native
No detour, no posing, no filler. Emotion itself is content; messiness has its own honesty.
Distill anyone you admire into a framework
Beyond the built-in schools, you can upload any author's text and let InkSoul extract their epistemology, argument chain, and writing axioms — then use that framework as a writing companion.
After the one-time purchase, self-distilled personas are unlimited. Persona files live locally on your Mac — exportable, backup-able, shareable.
Your text never leaves your Mac
- Local storage: all articles, polish history, and follow-up notes live only inside the App's sandbox directory on your device.
- BYOK option: after purchase, you may supply your own API key. Your device talks to the provider directly; InkSoul takes no cut and runs no proxy.
- No cloud sync: the current version does not upload, analyze, or train on your content.
- Sandboxed: the App is distributed via the Mac App Store with App Sandbox and Hardened Runtime; it can only touch folders you authorize.
See full Privacy Policy.
About the models
InkSoul ships with a curated set of provider configurations so you don't have to choose:
- Free Tier: 3 AI calls / day via an InkSoul-hosted shared key — to evaluate before purchase.
- One-time Purchase: removes the daily quota. Continue with the hosted key, or switch to BYOK in Settings to point at OpenAI / Anthropic / DeepSeek / any OpenAI-compatible endpoint.
- Curated recipes: InkSoul maintains which model performs best for which surface (polish vs. deep-read), so the choice burden stays on us, not you.
Pricing
3 AI calls / day
All surfaces unlocked for evaluation
No daily quota · BYOK option
All future updates included
Four commitments
- All future features come free after the one-time purchase — no upsell.
- If we stop development, the source will be opened within 6 months and the App permanently unlocked.
- Continuous iteration: more models, iCloud sync, persona-sharing community.
- Every built-in writing school is hand-distilled from public works — not a generic prompt patchwork.
All purchases are processed through Apple App Store In-App Purchase. Refunds follow Apple's standard refund policy.
About the writing schools: the style frameworks in InkSoul are summarized by the developer from publicly available works for reference purposes only. Any author names that may appear inside the App serve as style labels and do not imply endorsement, participation, or authorization by the named individuals or their estates. InkSoul does not reproduce or redistribute any author's original works.