One user message mattered after 18 months of quiet building

26Keys is a Mac writing coach that helps people who learned English as a second language improve through messages they already write. Its creator had used Grammarly and ChatGPT for years, but those tools polished his emails without meaningfully improving his English or communication skills. That gap hurt his at work.

He built 26Keys to teach users instead of simply correcting their mistakes, spending nights and weekends on it for 18 months. He rebuilt , redesigned screens, and promoted the app online, yet received almost no response. After launch, he checked , , and usage numbers in every day, but usually stayed flat.

A direct message from a Reddit user finally showed that the app had reached someone and moved him almost to tears.

Key points

  • Existing correction tools improved individual emails but did not build lasting English or communication skills.
  • The app was designed to teach users rather than silently fix their mistakes.
  • Eighteen months of nights and weekends produced little online response and mostly flat download numbers.
  • A direct message from one user provided a strong emotional sign that the work had helped someone.
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