Twelve Two Labs

iPhone app

Ebb

Habits for the day you have. Choose High, Medium or Low, see each habit at that size, and any version you choose counts the same. No streaks, no guilt.

  • Each day you choose your capacity: High, Medium or Low, always by you, never by the app
  • Every habit has three versions, from a 30-minute walk to stretching for one minute, all editable
  • Any version you intentionally choose counts equally; a Low day is not a warning
  • Rhythm: a calendar of what you chose, with no streaks, no missed-day marks and no perfect week
  • What lifts you: optional before-and-after notes shown as plain counts, never rankings
  • A home-screen widget to choose today's level, and Siri shortcuts, with nothing private on the lock screen
  • No account, no notifications unless you ask, and everything on your iPhone

Screens

Select a screen to see it larger.

  • Start the day by choosing its size: High, Medium or Low.
    Ebb's check-in for Saturday, Oct 17, headed 'What size of day fits today?', with three cards to choose from: High, 'Plenty to give'; Medium, 'Some, not a lot'; and Low, 'Just the smallest things'. Below them, an optional one-line note field.
    Start the day by choosing its size: High, Medium or Low.
  • Each habit shows the version that fits today. Any version counts in full.
    The Today screen with Medium selected in a High, Medium, Low switch. Three habit cards show the Medium version of each: a 10-minute walk, Tidy one surface, and Stand outside for 5 minutes, two of them ticked. A card below says 'You showed up 2 times today. Every one counts in full.'
    Each habit shows the version that fits today. Any version counts in full.
  • Every habit has a High, Medium and Low version. You write all three.
    The Edit habit sheet for a habit called Move, with three versions under the heading 'Three versions, all worth the same': High day, a 30-minute walk; Medium day, a 10-minute walk; Low day, Stretch for one minute. A note reads 'Make the Low version so small it feels almost silly.'
    Every habit has a High, Medium and Low version. You write all three.
  • Rhythm is a calendar of the levels you chose. Blank days are just days.
    The Rhythm screen, a calendar of October 2026. Each past day is a square filled in one of three shades for High, Medium or Low, or left as a dashed outline labeled 'Nothing recorded'. Below, a card reads 'You showed up on 13 days.' and a link to What lifts you.
    Rhythm is a calendar of the levels you chose. Blank days are just days.
  • What lifts you counts your own answers. Plain numbers, no ranking.
    The What lifts you screen. Under a note that these are your own answers counted plainly, three cards for Move, Read and Outside each say how many times 'a little better' was chosen, such as '7 of 10 times you rated Move', with the counts for every answer and a date range.
    What lifts you counts your own answers. Plain numbers, no ranking.
  • Choose today's level from the home screen widget, without opening Ebb.
    An iPhone home screen with Ebb's small widget in the top left corner. It asks 'What can you manage today?' above three buttons labeled High, Medium and Low, each with a small bar icon. App icons for Fitness, Reminders, Files and Ebb sit beside it.
    Choose today's level from the home screen widget, without opening Ebb.

Traditional habit trackers punish a low-energy day: the same target every day, streaks that reset, badges for missed days. Ebb owns a different question: what can I manage today?

Three sizes of every habit

Habit High Medium Low
Move 30-minute walk 10-minute walk Stretch for one minute
Tidy Clear the living room Tidy one surface Put one item away
Connect Meet or call a friend Send a thoughtful text Save a reminder to reach out later
Outside Walk in a park Stand outside for five minutes Look outside and notice the sky

Each morning, or whenever you like, you choose High, Medium or Low. Ebb shows each habit at that size. Any version you choose on purpose counts the same, and no tier is better than another. A High day is not a reward and a Low day is not a warning.

Rhythm, not streaks

Rhythm is a calendar of what you chose. It has no streaks, no missed-day marks and no perfect week. Past days are editable, future days stay locked, and a day you left blank stays blank without comment.

What lifts you

If you turn it on, Ebb can ask how you felt before and after a habit. After enough answers it shows plain counts, in your own words, for a date range it names: “For 4 of 6 times you recorded it, you chose a little better after a walk.” Nothing is ranked and nothing claims a cause. Delete the ratings any time.

Yours, on your iPhone

No account, no notifications unless you ask for a check-in time, no reading of Health unless you turn the sleep suggestion on. Backups are encrypted files you keep where you like. Ebb ships in English, Spanish, French, German and Brazilian Portuguese.

Can’t afford it right now?

Write to hello@twelvetwolabs.com and say it is Ebb you want. We will make sure you have it. No questions, no judgment.

Accessibility and standards

What Ebb is built and checked against, in plain words. These are our own checks, not third-party certifications. About these standards.

Dynamic Type and large text
Text follows the size you set in iOS Settings, up to the largest accessibility sizes, and screens rearrange themselves instead of cutting words off.
VoiceOver
Apple’s screen reader can use the whole app: every control has a spoken name, screens read in a sensible order, and nothing is image-only.
Reduce Motion
When you turn on Reduce Motion in iOS, animation is toned down or removed. Nothing in the app depends on seeing something move.
WCAG AA color contrast
Text is at least 4.5 times brighter or darker than what is behind it, so it stays readable in sunlight, on a dim screen, or with low vision.
Works offline
Every main task works in airplane mode after the first install. Nothing waits on a server to let you do your work.
No data collection
The app gathers nothing about you: no analytics, no advertising identifiers, no tracking, and no server of ours. Its App Store privacy label is Data Not Collected.
Apple privacy manifest
A file Apple requires inside every app that states what data it collects and why it uses certain system features. Ours declare no tracking and no collection.
Encrypted backups
Backup files are encrypted on your device with a passphrase only you know, using the same family of encryption that banks use. We cannot open them, and cannot recover a lost passphrase.
Multiple languages
The interface is translated, and dates, plurals and layouts adapt to the language. Each product page lists its languages.

Questions about Ebb

What does capacity mean in Ebb?

It is your own answer to What can I manage today?, chosen each morning or whenever you like: High, Medium or Low. It is a planning preference, not a mood, a score or a measurement. You can change it during the day without undoing anything you already did.

What happens if I skip a day, or a month?

Nothing. There are no streaks to break, no missed-day badges and no catching up. Rhythm shows what you chose on the days you chose something, and leaves the rest blank.

Does Ebb read my health data?

Not unless you turn on the optional sleep suggestion, which reads sleep from Health on your phone and may ask whether Low would fit today. It never sets your level, stores nothing and can be switched off. The app is complete without it.

Can I use Ebb to text a friend or get outside?

A habit can carry a shortcut that opens Messages with no recipient and no text filled in, so nothing is ever sent for you. If you also have Outside Today, the Outside habit can open its Notice screen.