Days Strong

iPhone · iPad

Days
Strong

What you stopped, what you started, and what it is all for.

47 Days strong The counter the app is named after. It keeps running whether or not you are looking at it.

01 — The promise

The honest day

Forgetting to open the app never costs you a streak.

Most trackers quietly punish you for not opening them. A day you did not log becomes a day you failed, even when you did not. That is the reason this app exists.

Every past day stays editable, forever. Open a habit, tap any day in its heatmap, and put it right — a week later or a year later, it makes no difference.

A day has three answers, not two. Done, slipped, and an amber couldn’t that carries a reason. Amber days are skipped entirely: they cannot break a streak and they are not counted against your percentage. Break your leg and a three-times-a-week target shrinks for a fortnight rather than failing you fourteen times.

Owning a slip is one tap, and it is deliberately plain rather than alarming. The counter restarts from that day; the run you had and your best ever run both survive. Nothing is ever deleted for being honest.

02 — What it holds

Two halves, and what they are for

  1. 01

    Stopped

    The things you quit. A live counter down to the second, backdated to when you actually stopped. What you have not spent, and what you have not consumed — 940 cigarettes not smoked. For the habits where it is known, a recovery timeline of what your body is doing about it, and a panel that tells you which phase you are in today rather than only what is next.

    Every claim in those timelines names where it comes from — the NHS, the CDC, the NIDA — or says plainly that it is commonly reported rather than proven. And where stopping suddenly can be genuinely dangerous, alcohol above all, the app says so before it shows you a timeline, not in a footnote. General guidance, not medical advice.

  2. 02

    Started

    The things you took on. Current streak, best ever streak, and one tap to record today. Every day, chosen weekdays, or a number of times a week — and your consistency since the day you began. Things you do several times a day are counted rather than ticked: eight glasses of water fills up as the day goes on.

  3. 03

    Aiming at

    Goals, because the counting is not the point. A money goal fills itself from what the quit habits are no longer costing you, so the cigarettes you did not buy visibly turn into the thing you actually wanted.

  4. 04

    The morning pledge

    Everything else in the app reports on a day that has already happened. This is the one thing you do before it: a promise, made in the morning, to the things you are stopping. Skipping it costs nothing and is not recorded — it is an offer, not another box.

  5. 05

    Two lives, one app

    Habits can be grouped into sets — work and personal, or whatever you call them — and the switcher narrows everything with it, so a work streak never dilutes a personal percentage. It stays hidden until you make a second set, because one set is not a choice.

  6. 06

    The account

    Your figures set as a printed statement rather than a dashboard: the year at a glance, the patterns that the data genuinely supports, and nothing invented to fill a chart. Plus a shelf of the books and talks worth your time, each spine as thick as its reading time.

03 — Your data

It never leaves the phone

There is no account to make and no server to sign in to, because there is no server. Everything you enter is written to a database inside the app on your own device, and stays there.

Account required
None
Where your history lives
This device
Servers
None
Analytics and trackers
None
Third-party code
None
Advertising
None
Subscription
None

You can write your whole history out as a single file whenever you like, and read it back in on another device. That file is yours; it goes wherever you put it and nowhere else. Read the privacy policy — it is five lines long, for the obvious reason.

04 — Getting it

One payment. That is the whole business model.

Days Strong is not finished yet. It is being lived with before it is sold, which is the only honest way to find out whether a habit tracker survives a bad fortnight. When it goes on sale, the link will be on this page.

Coming to the App Store

£4.99 once. No subscription, no in-app purchases, no ads.

iPhone and iPad. There is no web version and there will not be one — the app is meant to sit on the home screen of the device you actually carry.