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GoodHabits 3.0
A 66-day habit tracker with a grace day for real life
GoodHabits gives a single habit a 66-day run, based on University College London research that found a median of 66 days—not the 21-day myth everyone repeats. Miss a day, and you can still log it until the end of the next one, because the design assumes you're a person and not a streak. It's for people who want one thing to stick, not a dashboard of everything they're failing at.
Hi Product Hunt 👋
Almost every habit app treats a missed day as a failure and shows you a broken streak. That never matched how anything actually went for me. So GoodHabits gives you a grace day: miss one, and you can still log it until the end of the following day. It's the feature I care about most, and I'm still not sure I got the balance right.
I'm Simon, a solo developer from Bremen. This started in 2021 as a way to understand SwiftUI's declarative model — habit tracking was a small enough problem to fit in my head. Then it sat there for a few years as something only I used, and it only became a 1.0 in late 2024. Version 3.0 is the first one I built for other people rather than for myself.
📅 66 days per habit, based on the UCL research (median 66 days, not 21)
🩹 A grace day — a missed day can still be logged until the end of the following day
📲 Interactive widgets on the Home Screen and Lock Screen: log the day without opening the app
🔔 Reminders with a "Done" action, so you can check off straight from the notification
🔒 No accounts, no analytics, no tracking — everything stays on your device
It supports Dynamic Type and VoiceOver throughout. One habit with every feature is free; tracking several at once is a one-time $2.99. If you want that part, comment here, and I'll send you a code — no strings, and I'd rather hear what didn't work than what did.
What I'd genuinely like to hear: is a fixed 66-day arc with an end useful to you, or do you want something that just keeps running? I've argued myself into both positions and would rather hear it from people who actually track things.
Congrats on the launch, Simon! The grace-day concept is such a thoughtful touch — habits should survive real life, not break on one missed day. Love it. 🎉
The 66-day model with a grace day is such a humane take on habit building — removing the all-or-nothing streak pressure is exactly why most trackers fail people. Love the philosophy here, congrats! 🌱
honestly the "you can still log it until the end of the next day" bit is kind of brilliant, like finally a habit app that gets that life happens and you don't want to lose your streak because your kid was up all night. really thoughtful UX choice.
About GoodHabits 3.0 on Product Hunt
“A 66-day habit tracker with a grace day for real life”
GoodHabits 3.0 was submitted on Product Hunt and earned 5 upvotes and 7 comments, placing #97 on the daily leaderboard. GoodHabits gives a single habit a 66-day run, based on University College London research that found a median of 66 days—not the 21-day myth everyone repeats. Miss a day, and you can still log it until the end of the next one, because the design assumes you're a person and not a streak. It's for people who want one thing to stick, not a dashboard of everything they're failing at.
GoodHabits 3.0 was featured in iOS (110.6k followers), Health & Fitness (83.1k followers) and Productivity (658.2k followers) on Product Hunt. Together, these topics include over 220k products, making this a competitive space to launch in.
Who hunted GoodHabits 3.0?
GoodHabits 3.0 was hunted by Dr. Simon Bogutzky. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how GoodHabits 3.0 stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Dr. Simon Bogutzky