If you have ever lost a 90-day streak because you spent the evening in bed with the flu, you already know the problem. The number resets, the flame icon goes out, and the app tells you that three months of real behavior amounts to zero. That is not a habit-formation system. That is a punishment system with a counter on it.
In the last two years a handful of habit trackers have tried to fix this without throwing out tracking altogether. They use rolling windows, weekly targets, monthly goals, weighted-average momentum scores. Different math, same goal: make missed days normal instead of catastrophic.
This is a comparison of five of them. I built one of these (mostly), so this is not a neutral review. I have tried to be specific about each app’s actual mechanic and to call out where it really differs, including from mostly. If you want a one-sentence summary of who each one is for, jump to the table at the end.
One caveat up front. This is a young, small category. Most of the apps below were released in 2026 and have little public review history yet. mostly itself has zero App Store reviews at the time of writing. I am listing apps by mechanic and pricing transparency, not by popularity or proof of traction. Treat this as a map of how the niche is thinking, not a ranked top-5.
What I looked at
To be on this list, an app has to:
- Use something other than consecutive-day streaks as its primary progress metric.
- Be currently available (live web app or App Store listing in 2026).
- Have a clear product philosophy on its landing page, not just feature bullets.
I did not include trackers that have a streak counter but also offer “pause” or “rest day” modes. Those still operate inside the streak mindset; the user has to remember to protect the streak in advance. Apps on this list have replaced streaks at the model level.
mostly: weekly targets like “4 out of 7”
mostly uses a weekly target as the unit of progress. You pick a number between 3 and 7 for each habit (3/7, 4/7, 5/7, 6/7, or 7/7). At the end of the week the habit either hit its target or did not, and the week closes either way. There is no chain to maintain across weeks and no running streak count.
There’s no AI coach, no gamification layer, no social feed. Just the mechanic. It’s iOS only and a paid app on the App Store — no subscription, no in-app purchases. Rest days aren’t a feature you toggle; they’re baked into the math. A 4-out-of-7 target already assumes three off-days a week.
Where it fits: people who want one small thing done well, who are tired of being gamified, and who like the idea of a target they can look at on a Sunday and know how the week went. Where it does not fit: Android users, anyone who wants a rolling-window or momentum score, or anyone who wants the app to talk to them.
Selfsame: momentum that never hits zero, with an AI coach
Selfsame uses a 14-day weighted average with a 5% floor. The headline mechanic is that your momentum can dip but it cannot reach zero, ever. Even a week off the wagon leaves you at 40% rather than starting over.
The other half of the product is Sage, an AI coach built on Claude with a system prompt that, according to the site, forbids it from shaming the user. The intended interaction is two-to-four-sentence responses, with identity-aware framing (“as a runner…”) rather than task framing (“running habit”).
Selfsame is also explicitly identity-first: it asks you to pick who you are becoming rather than what you have to do every day. The product is web-based with a free start. Public usage signal is limited, so treat it as an experimental web-based option rather than a proven mainstream app.
Where it fits: people who want a coach component, who respond well to identity framing, and who are okay with their habit data living on a web service. Where it does not fit: anyone who specifically does not want AI in their habit app, or who wants a native mobile app.
BeBetterHabits: rolling 7-day windows, no signup
BeBetterHabits is a web app that uses a rolling window of the last seven days. Their landing page shows the difference clearly: where a streak counter goes from three good days plus one miss to zero, the rolling-window math leaves you at four good days out of five logged. Miss a day and your window slides forward; the previous good days do not disappear.
You can start tracking without signing up, which is unusual. Paid plans are $5/month or $60/year ($5/mo annual rate), with a 30-day free trial; the app runs on any device because it is browser-based.
Where it fits: people who want to start in 30 seconds, who do not want to download anything, and who like the rolling-window math specifically. Where it does not fit: anyone who wants a native iOS or Android experience, or who specifically wants weekly or monthly cycles instead of a sliding 7-day window.
SetHabits: monthly goals like “20 out of 30”
SetHabits is the closest direct competitor to mostly philosophically, but the unit is monthly instead of weekly. You set targets like “20 days this month” and the app shows a monthly calendar with your dots and a single completion percentage. Miss a day, the percentage still moves toward the target. No chain to lose.
The free plan covers five habits. Premium is $3.99/month or $29.99/year, with a $59.99 lifetime tier limited to 100 founding-member licenses.
Where it fits: people who think in months rather than weeks — fitness blocks, monthly reading goals, things that swing with travel or work cycles. It is less of a fit for people whose lives are paced in weeks, or who like the cleaner reset that a weekly cycle gives.
Gentle Habits: minimal cross-platform tracker
Gentle Habits keeps a small landing page on purpose. The site positions it as a “low-pressure habit tracker that celebrates small wins” and lists exactly two things on the page: it is gentle, and it is available on both iOS and Android. The specific mechanic is not described on the marketing page.
It is the only app on this list with both iOS and Android, which alone makes it relevant to a chunk of users that the iOS-only or web-only options cannot serve.
Where it fits: Android users who want the same anti-streak philosophy that iOS-native trackers have been getting, and people who want a minimal-information landing page that does not try to sell them on a system. Where it does not fit: anyone who wants to inspect the exact mechanic before downloading.
Quick comparison
| App | Mechanic | Platforms | Free tier |
|---|---|---|---|
| mostly | Weekly target (X out of 7) | iOS | Paid app, no subscription, sync included |
| Selfsame | 14-day weighted average with 5% floor + AI coach | Web | Free start, paid features |
| BeBetterHabits | Rolling 7-day window | Web (any device) | 30-day free trial, then $5/mo or $60/yr |
| SetHabits | Monthly goal (X out of 30) | Web | Free up to 5 habits |
| Gentle Habits | Not specified on landing page | iOS, Android | Free on App Store, no in-app purchases |
So which one should you actually try
The honest answer is that the mechanic matters more than the brand. If your life runs in weeks, a weekly target like mostly’s 4-out-of-7 will probably feel right. If your life runs in months, SetHabits will fit better. If you want a rolling window of recent days, BeBetterHabits is the cleanest version of that. If you want a momentum score that never resets and you are comfortable with an AI coach, Selfsame is the only one in this list with that combination.
If you are on Android, your real options are Gentle Habits or one of the web-first apps. Most of the iOS-first options in this list do not have an Android version yet.
And if you find yourself wanting to argue with the mechanic itself (why 4 out of 7 and not 3 out of 7, why 14 days and not 30) that is a sign that the philosophy is the thing, not the specific number. Pick the smallest target you would be proud of for two months and stick with whichever app makes that target feel real.
FAQ
What is a habit tracker without streaks?
A habit tracker that uses something other than consecutive-day counting as its main progress metric. The most common replacements are rolling windows (last 7 or 14 days), weekly targets (4 out of 7 days), monthly goals (20 days a month), and weighted-average momentum scores.
Are streaks bad for every habit?
No. Streaks work fine for short challenges and for people who genuinely enjoy the game. They become a problem when one missed day erases months of real progress, or when the goal quietly shifts from doing the habit to protecting the number.
Why do so many new habit trackers reject streaks?
Habit formation research, including the often-cited Lally et al. (2010) study, suggests that occasional missed days do not erase the habit-formation process. Streak counters treat them as catastrophic, which can drive the exact rebound and quitting behavior the tracker is supposed to prevent.