12 CHALLENGES
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Monthly challenge tracker

Everyone makes it three days.

Day four is where it usually falls apart. 12 Challenges shows you where you stand at a glance. One tap a day, nothing more.

Today view of 12 Challenges in dark mode: four challenges, three of them checked off
The difference

Not another all-in-one tracker. One method, perfected.

There are thousands of habit trackers trying to be everything at once: journal, mood tracker, coach, community. 12 Challenges does exactly one thing on purpose, the 12-challenges method: twelve 30-day goals a year. Done properly, in the style of a native Apple app.

Streak view: a chain of pearls filling up, 14 days in a row
Motivation

The streak pulls you along

Every finished day fills another pearl in the chain. One glance tells you it’s worth keeping going.

The method

What a circle is, and why you stick with it

done open 30 circles = 30 days of one challenge

Every challenge runs for 30 days. Every day is a circle: empty or filled, nothing in between. Tap it in the evening, done. The calendar view shows every circle of the month at a glance. The streak just counts how many days in a row you didn't miss.

Why that keeps you going is very human: once you've done 10 days in a row, you don't want to throw that away. Losing a streak feels worse than one more day feels good, so you keep tapping. And don't worry: missing one day won't ruin everything. There's a one-day edit window and an 85% threshold for that. Only Hardcore mode holds you to every single day.

Loss aversion: Kahneman & Tversky. Habit automaticity: Lally et al., University College London, 2010.

Overview

Every challenge, one month at a glance

Days done, current streak, and the 85% threshold at a glance: the calendar shows you instantly whether the month is still on track.

Calendar view for a single challenge with day-by-day progress and streak count
Ideas to start

Never a blank page

Ready-made templates for sport, health, finance, and more.

Sport
"30 min of exercise"
Health
"Drank 2 liters of water"
Learning
"15 min of language practice"
Creativity
"Wrote in journal"
Focus
"No social media"
Finance
"Saved €5"
Everyday
"Cooked from scratch"
Other
"Spoiled a pet"

Or your own. Still undecided? 50 challenge ideas with reasoning.

“Every filled circle is a promise to yourself.”

Day 6 of 30

More from the app

And the rest?

Equipment

Compact, but complete

Multiple challenges at once
Calendar view per challenge
30 achievements, 5 of them hidden
Custom reminder time per challenge
Win-back reminders if you lapse
Home screen widget
Control Center quick check-off
Motivational quotes
No tracking, no ads
Dark & light mode
Selectable app icons
Questions

Before you download

How is my data handled?

Everything stays on your device. There are no servers, no accounts, and nothing is sent anywhere. No analytics, no tracking, no ads. See the full Privacy Policy for details.

What's the widget for?

A home screen widget shows your progress at a glance and lets you check off a challenge without opening the app. There's also a Control Center button for the same one-tap check-off. Both are optional.

Why should I use this app?

Because it does one thing well instead of many things halfway. No charts, no journaling, no bloat, just the 12-challenges method, executed properly, in the style of a native Apple app.

Ready?

Start today.

Free. No ads. No account.