Writing

• Gamified fitness apps, compared honestly (by someone who built one)

  An honest comparison of gamified fitness and habit apps — Habitica, Strava, Finch, Duolingo-style streaks — and where each one actually breaks down. Written by the founder of RankUp, which is one of them.

  August 26, 2026 · 8 min read

• The habit window is much shorter than 21 days

  The "21 days to build a habit" rule is a misquote. Data from 154 accounts on a discipline app: 73% of people who ever start do it within 24 hours of signing up, 38% within the first hour, and 37% of everyone who completes one session never completes a second.

  August 26, 2026 · 7 min read

RankUp is a proof-backed, ranked discipline app. See how it works.