Klatos is opinionated on purpose. It is built to be trusted, not to flatter you — which means a few of its rules will surprise you at first. Each one is there to keep your record faithful to what you actually did, so you can trust the progress you see. Below are the rules and principles behind Klatos, along with answers to your questions.
Why can't I edit yesterday?
The ruleYou mark each habit while the day is still today. Once your local midnight passes, that day's record is fixed and can't be rewritten. A written note can be added to the record, and revisited for a short window, but whether the habit was done is settled at day's end for good.
The reasonA record you can rewrite tells you what you wish had happened, not what did. Plenty of apps let you patch a missed day so the streak survives and the average holds. A number like that comforts you and moves you nowhere. Klatos is built the other way: a true record of what you do, honest enough to build a better self on. Flattering you is not part of the deal. Your year here is a photograph of where you actually stand. A record you could edit would quietly become wishful thinking.
Does a closed day ever change?
The ruleAt your local midnight the day score is frozen. It becomes a snapshot of what you did that day. Every day has its snapshot, including the missed ones. No back-filling, ever.
The reasonA record like this is only meaningful if a closed day never changes. What you see months from now must read exactly as it did the morning after. That is how you can trust the progress we show you.
Can I edit a note after the day closes?
The ruleYes. The note, and nothing else. Check-ins, mood and weight all settle at your local midnight, on every plan, and no upgrade reopens them. A note stays editable for seven days.
The reasonThey are two different kinds of thing. A check-in is proof of what happened, and proof you can rewrite is not proof. A note carries your interpretation of the day, and making sense of a day often takes longer than the day itself. The proof has to lock. The interpretation needs room for refinement. We did both.
Why can't I buy back a missed day?
The ruleThere's no streak-repair button, no make-up token, no restore-for-a-fee. A missed day stays a missed day — for everyone, on every plan.
The reasonThe moment a record can be bought back, it stops meaning anything — and so does the self-knowledge it was supposed to give you. We left that button out on purpose. It's the one feature whose absence is the product: the record can bend and recover, but it can never be faked. It is one of the things we refuse to build.
Why measure the practice, not the outcome?
The ruleYour score is built from what you can actually do each day: showing up for the habit you committed to, not the result it's meant to produce. Klatos counts the run, not the finish line.
The reasonAny lasting change takes time to arrive. Measuring the outcome ends only two ways: disappointment ("why am I not changing yet?") or a lie ("I'll fudge the record to feel better"). You can't control the outcome, but you control whether you show up. Measuring the practice is the only one that actually changes you. You become what you repeat, and the result follows in its own time.
How is Klatos different from a streak app?
The answerA streak resets to zero the moment you slip; Habit Strength bends and recovers instead. Habit Strength is the percentage of scheduled days you actually completed. A miss bends your Strength but does not erase it: every day you completed still counts. Your streak is still counted, kept quietly to the side, no longer the verdict on your effort. A day you missed is recorded as missed, and nothing you do later changes that.
The reasonHabit Strength measures something a streak never can: how deeply the habit has actually taken root. The full reasoning is under Why do we focus on strength, not streaks?
Why do we focus on strength, not streaks?
The ruleHabit Strength is the one number Klatos asks you to lean on: a living read that grows as you show up, bends when you miss, and recovers as you return. A miss bends your Strength but does not erase it: every day you completed still counts. Your streak is still counted, kept quietly to the side, no longer the verdict on your effort. The five words it can read, and the exact range behind each, are on the ladder page.
The reasonA streak resets to zero the first time life gets in the way, so it conflates your luck at dodging disruption with the habit itself. One bad day is enough to break a streak, and then it can look like the whole effort was for nothing, which is exactly the moment people quit. Habit Strength measures something a streak never can: how deeply the habit has actually taken root. That's the thing you came here to build. Habit Strength survives a real life instead of punishing you for living one. The simulator shows what the same misses do to a streak and to Habit Strength.
What does a habit's own page show?
The answerEach habit has its own page. Click the habit's name in the Habit Strength or Habit Streak card on Today, in Insights › Trajectory, or in Planner › Habits. The page reads the habit over the span you pick. Four weeks, 90 days and a year are open on every plan. Dates you choose, and the whole record, are on Rooted. Every plan shows the habit's Strength and streaks, its heatmap, its trend, and how often you came back the next due day after a miss. Rooted adds Strength over time, the weekdays the habit holds best, how often you missed twice, your longest gap, and each year against the others.
The reasonA space score blends every habit in it, so a strong habit can hide a weak one. A habit is kept or dropped one at a time, so the record needs a view of one habit at a time. The page shows whether it is taking root, and how it recovers after a miss.
What is Frequency, and what's an off-schedule day?
The answerFrequency is the set of days a habit is due. You can set it to daily, weekdays, weekends, or specific days you choose. The days a habit isn't due are its off-schedule days. An off-schedule day is never counted as a miss: it doesn't dent your Habit Strength or break your streak, because only a habit's due days are ever scored. A zero means you committed to something and did not do it. An off-schedule day means you made no commitment, so it shows as a blank square, never a zero. The full detail is on the ladder page.
The reasonNot every habit is meant for every day. A workout on Mondays, Wednesdays and Fridays; a language lesson on weekdays; a movie on weekends. Forcing those into a daily grid would mark you down for days you never meant to practice, and punish you for following your own plan. Frequency is how you tell Klatos the real shape of the habit, so the record measures you against the commitment you actually made, and nothing more.
Why doesn't my planned rest day count as a miss?
The ruleWhen you schedule a rest day, that day is treated as an off-schedule day, not a miss. Rest days are capped at three a calendar month, and at most two in any single week. Each must be declared ahead of time, before its week begins. You can't turn a day you already skipped into a rest day.
The reasonRest is part of any practice that lasts. It's breathing room that makes any long quest sustainable. Klatos would rather you take a rest than watch you burn out trying to hang on to a schedule. And just as an off-schedule day doesn't dent your Strength or break your streak, neither does a rest day. It isn't a fine-tuning tool either. If keeping up is a real struggle, the answer is a Frequency that fits, not more rest days. Two guardrails keep them serving their purpose instead of becoming a Trojan horse for faking your record: they come in very limited supply, and can only be declared ahead of time, before the week starts.
What is a space?
The answerA space is a named area of your life — Fitness, Mind, Work — with its own set of habits and its own score. Klatos gives you a few to start. You can create new ones or shape the existing ones to fit how you actually think about your days.
The reasonYour life isn't one flat list, and a single blended score treats it like one — a strong week at the gym quietly papering over a month of skipped focus work. Scoring each area on its own shows you where you're strong and which area is slipping.
Why can one habit live in more than one space?
The ruleA habit isn't locked to a single space. A morning walk can belong to Fitness and Mind at once. You mark it once, and it counts in every space it's part of.
The reasonReal habits rarely serve just one part of you. Restricting each to a single heading would misstate what it's actually for. A space mirrors one area of your life, and letting a habit live in every area it touches is what keeps each space true to life instead of arbitrary.
What is habit weight for?
The answerEach habit has a weight in a space: Standard or High priority. A Standard habit counts once toward that space's score; a High-priority one counts double. You set this per space, so the same habit can be High priority in one and Standard in another.
The reasonWithin one area, some habits carry more of the load than others, and scoring them all the same would flatten that. High priority lets the few that matter most move the number the way they move your life. A habit's importance also shifts by area, so the weight is set per space: a walk can carry extra weight in Mind while being a Standard habit in Fitness.
Why does the same habit, same weight, count more in one space than another?
The answerA space's daily score is the day's completion ratio of the habits in that space. When every habit weighs the same, one habit in a 3-habit space counts for a third; the same habit in a 5-habit space counts for a fifth.
The reasonA share only means something against a whole, and each space is measured against just its own habits. So the same act is a bigger slice of the smaller space.
How does Today score a habit that lives in two spaces?
The ruleOn Today, a habit counts once, even if it is in two spaces. If it is High priority in any of them, it counts double.
The reasonToday's score is about your whole day, not one area of it. One walk is one thing you did, so it counts once. It keeps its highest weight because you decided it matters most in at least one area of your life.
How do I get reminders on my phone?
The answerTurn them on in Settings › Notifications with Enable on this device. iPhone and iPad need one step first.
The reasonOn iPhone and iPad, Apple delivers web notifications only to Home Screen apps, never to a browser tab. The Home Screen app has its own sign-in, so you sign in once more.
Why don't reminders appear on my Mac?
The answerUsually a Focus is on, such as Do Not Disturb. A Focus silences notifications from every app, Klatos included. Check these in order.
The reasonYour Mac controls how reminders are handled. When Focus is on, reminders are silenced: no banner, no sound, and nothing reports an error. To you, it just looks as if no reminder was sent.
How much does Klatos cost?
The answerOpening December 2026. Free to start when it does. No credit card required. There are two plans. Free includes the full Habit Strength model, 2 spaces with 3 habits in each, planned rest days, accountability partners and each habit's own page. Data history is capped to a one-year rolling window. Rooted, the paid plan, adds your whole history back to day one, unlimited habits and spaces, custom reminders, the Yearly Review, habit analysis, mood and weight correlations in Insights, and an extended search of your reflections. You can try Rooted free for 30 days, once, with no card. The price of Rooted is published when Klatos opens.
The reasonFree plan gets you started with sensible defaults and you can see your progress over a rolling one-year window. Rooted pays for breadth and depth: unlimited habits, spaces, history, and the tools that read it. How a day is scored never depends on the plan. A missed day is a miss on every plan, and exporting your data is free on every plan.
Is there an iPhone or Android app?
The answerKlatos is a web app, a Progressive Web App (PWA). It is not in the App Store or on Google Play.
Reminders are under How do I get reminders on my phone?
The reasonA web app was the quickest path to get Klatos out to the world. It works on every device from day one. If you enjoy Klatos but would prefer a native app, tell us: that demand decides when we build one.
Can I export or delete my data?
The answerYes. You can export all your data as JSON or CSV on any plan, with no history limit. Deleting the account is a real delete: fourteen days to change your mind, then every row is erased. The full detail is on How the record is kept.
The reasonThe record is yours.