Built by Typists, for Typists
Sole Proprietorship — a software company dedicated to making professional typing faster, smarter, and more private.
Our Mission
To put the right word on your right pinky at the right time.
We believe that typing should be effortless. Professionals spend enormous amounts of time re-typing the same complex terminology — medical diagnoses, legal citations, scientific compounds, government acronyms — over and over again.
preciseWriter.ai exists to eliminate that waste. Not by changing how you type, but by making every keystroke count more.
Sole Proprietorship is a software development company specializing in autotext, text-expansion, and autocomplete algorithms, headquartered in Walnut Creek, CA.
preciseWriter.ai
A product of Sole Proprietorship
2018
Founded
5+
Industry Vocabularies
Our History
2018
Sole Proprietorship founded in Walnut Creek, CA. Initial research into adaptive text-expansion algorithms.
2020
First internal prototype. Home-row selection system patented. Beta released to a small group of legal professionals.
2022
Public release of preciseWriter.ai for Windows. Specialized vocabulary packs launched for Medical and Legal sectors.
2024
Government and DoD vocabulary packs released. Volume licensing introduced for enterprise customers.
2025
STEM and Biotech vocabulary packs launched. MacOS development begins.
2026
preciseWriter.ai rebrand. Expanded vocabulary libraries and enhanced database management tools.
How We're Different
Unlike generic autocomplete tools, preciseWriter.ai is built around a single principle: loyalty to your vocabulary.
✓ We suggest appropriate words, much earlier
✓ Selection by pinky in normal typing flow
✓ 100% local — zero internet traffic
✓ Curated vocabularies for 5+ professional fields
✗ Suggest popular words, not your words
✗ Selection that interrupts your flow & decreases typing speed
✗ Data sent to cloud servers & multiple 3rd parties
✗ One-size-fits-all vocabulary with no depth
Our Values
Privacy Absolute
Your words are yours. We never collect, transmit, or analyze your keystrokes. Full stop.
Precision Over Noise
We surface 4 relevant suggestions, not 40. Less distraction, more flow.
Loyal to Your Terminology
Unlike generic tools, preciseWriter.ai adopts your vocabulary and your vocabulary only.
Accessible by Design
Built for users with RSI, carpal tunnel, and high-volume typing needs. Ergonomics are not an afterthought.
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