SheetGenius, Inc.

About the company

Company

SheetGenius, Inc.

Incorporated 2023

SheetGenius, Inc. owns and operates 58 active software products. Michael Ruescher incorporated the company in 2023 and works on it full time.

Michael serves as Chairman and CEO. The products keep their own names. SheetGenius, Inc. is the legal entity behind all of them and is responsible for their operation, billing, and support.

Founder’s letter → What happened to the first product, what the Bitter Lesson taught Michael, and where the work goes now.
ruemic.com → Writing, background, and contact.

Origin

The short version

  1. Worksheets

    SheetGenius is named for its first product, a worksheet generator Michael built while homeschooling his kids when GPT‑3.5 came out. The model alone could not reliably produce the next day’s worksheet and a printable PDF. The product closed that gap.

  2. The gap closed

    Newer models closed most of it themselves. By 2026 a capable frontier agent could make a decent worksheet and PDF on its own, so Michael moved most of his effort elsewhere. The app still has its uses; its core generation job no longer set it apart.

  3. Bitter

    Richard Sutton’s essay gave the experience a name. Bitter is the company’s answer to the next question: what remains valuable as the models improve? It is a dedicated machine prepared for the customer’s agent, with durable source, deployments, verification, recovery, and the history of what happened.

  4. BitterClip

    Michael left his job in May 2026 to work on Bitter full time and found that getting anyone to know software exists is a separate job from building it. Making one video showed how much work sits between a recording and something worth watching. BitterClip came out of that, and of the products the company shipped this year it is the one customers came back to, so it takes most of the work now.

Read Michael’s letter, or explore the full portfolio.