Goal-based discipline challenges in the spirit of the 75-day originals — but anchored to a number you're chasing, verified by your devices and your people, and built to fit your life, not someone else's rules.
Free to join · iPhone first · no spam, one launch email
Challenge apps are honour-system checklists. Proving connects to the places the truth already lives — your watch, your camera, your accountability partner — so finishing actually means something.
Every challenge is anchored to a measurable outcome — a 10k time, a weight, a distance. Two scoreboards: don't break the chain, and watch the number move.
Workouts confirm through Apple Health and Strava. Manual entries don't count. Photos come from the in-app camera only — timestamped, no gallery uploads.
Your partner sees your board, confirms what sensors can't, and gets the nudge when you're slipping. They see badges — never your health data.
Recorded by your watch or phone via Apple Health, Health Connect or Strava. The gold standard.
In-app camera, timestamped. Progress shots, tonight's page, today's meal.
Your accountability partner confirms within 24 hours. Accountability runs both ways.
Still allowed — but labelled. Honesty about the honour system is the point.
The share of your challenge that was proven rather than promised. It's the number on your finisher card — and the reason a Proving finish carries weight that a checklist never will.
Join a challenge people recognise, then shape it to your life — duration, diet, indoor workouts for brutal climates, and how hard the consequences bite: Iron, Standard or Flex.
The starter. One workout, water, ten pages, a daily photo — and one goal with a number on it.
The full-spirit hard challenge. Two workouts, clean diet, water, reading, photo. No shortcuts — unless you chose them.
Goal-heavy, block-structured, for the big swing. The one you graduate to.
October to New Year, everyone together. Enrolment opens in September.
Waitlist members get founding-member pricing, first access to The Arc, and a say in what we build next.
One email at launch. That's it.