Local-first Apple apps

Meet StoryChat AI

StoryChat AI turns conversations into clean, shareable summaries on-device. It is built for iPhone, iPad, and Mac with privacy-first local model support and polished story-card output.

Explore StoryChat AI Request Launch Updates

Planned commercial release through the Apple App Store. Private conversations stay on your device during supported on-device summarization workflows.

About Bison Brush LLC

We build focused Apple-platform apps with clear utility, strong product polish, and careful attention to privacy, performance, and usability.

On-Device AI

StoryChat AI is designed around local-first summarization so users can work with private conversations directly on their own Apple devices.

Native Apple Experience

We ship native interfaces for iPhone, iPad, and Mac, tuned for the strengths of each device category.

Privacy and Reliability

We prioritize practical tools that feel trustworthy, responsive, and easy to understand in everyday use.

Featured Apps

Explore the Bison Brush lineup across productivity, education, and local-first AI tools.

Coming to the App Store

StoryChat AI

Summarize chats into clear narrative takeaways, generate compact story cards, and keep the workflow grounded on-device for a more private Apple-native experience.

AI Summaries On-Device iPhone + iPad + Mac
Learn More
Math Sheet Prints App Icon
Available now

Math Sheet Prints

Create and print custom math worksheets for students. Perfect for teachers, parents, and tutors who need quick access to practice problems.

Education Productivity iOS
Learn More

Get In Touch

Questions about StoryChat AI, Math Sheet Prints, or future Bison Brush releases? We'd love to hear from you.

[email protected]

Need Support?

Need help with one of our apps, want an update on StoryChat AI, or have product feedback to share?

Email Support

Reach Bison Brush directly for support, launch questions, and app feedback.

[email protected]