A streak you can lose.
Miss a day and the counter goes back to zero. Loss aversion does the work motivation can’t.

challenge.One day. Onetap.Ember turns discipline into a game you can’t quietly quit. Check in once a day. Break it and you start over — and Ember will know.
Free to start. iOS and Android.


One winner, drawn on 31 Oct from every entry. Funded by Ember — 10 Spark a ticket.
Draws run in the app. No Spark? Free email entry has the same chance.
Habit apps fail for one of two reasons. They’re too complicated, or they’re too lonely. Ember keeps one mechanic at the center and adds the two things that make it stick.
Miss a day and the counter goes back to zero. Loss aversion does the work motivation can’t.

Public challenges make showing up social, not private. Somebody notices when you stop.

No dashboards to maintain, no scores to grind. The check-in takes a second. The streak does the rest.

Spark is Ember’s currency. Check-ins, streak bonuses and Apple Health steps add up while you show up. Spend it on draws, streak freezes, skins for Ember and other extras.

Ember is free to download and free to use every day — one challenge, with Ember on it. Pro opens the whole app: as many challenges as you want, Ember on every one of them, your full stats and the members’ prize draws.
Prices in euros; the App Store and Google Play show the price for your country. After the 7-day trial the subscription renews automatically until cancelled.
One challenge. One day. One tap. The first check-in takes ten seconds — and Ember hatches right after it.

iOS and Android · Pro unlocks unlimited challenges and Ember on every one.


Every kept day generates a story card — your challenge, your number, your proof. Built for Instagram and TikTok, exported in one tap.




Every check-in earns Spark. Spark gets you into the draws running now — Apple AirPods 4, Netflix credit, a 5,000 Spark pot. No Spark? Enter free by email with exactly the same chance of winning.
Spark buys Ember things only — never cash.
Join public challenges, follow people, comment on their days — or publish your own challenge and let others in. Everyone has their own Ember, and everyone sees when yours goes dark.

“Day 12 and the shower is still awful. Still going.”

Activity challenges check themselves in. Steps, rides and workouts come straight from Apple Health — when the goal is met, the day is kept. Nobody taps their way to a fake streak.
Goal met → the check-in happens by itself.

A discipline score, a 90-day map of kept days, and a weekly insight from Ember that reads your actual patterns — not generic advice.
71 of 90 days kept. Sober and Read are holding; 10K slips on weekdays after work. Close it before 17:15 this week.
Longest streak 91 days



Not generic advice. Ember reads your actual check-ins — it knows which challenge slips, when it slips, and plans your day around it. On a bad day it shrinks the habit instead of letting the streak die: one page still keeps day 87.
Free on one challenge. On every challenge with Pro.
After work is where it slips. I moved Read to 21:00 — and tonight one page is enough. Day 87 doesn’t die because of one bad day.

Ask about your own data. Ember knows which challenge slips and when.

Run 45 minutes with the work. Finish it and the check-in is yours.

Steps, rides and workouts verify themselves. No manual logging.

A shelf of proof — for streaks kept, focus hours, cold showers survived.

A streak card built for your story. Day 100 deserves an audience.

Life happens. A freeze holds the chain for a day so one slip isn’t zero.