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Halfday
Fasting timer with stages and streaks. Free forever, no ads
Halfday is a fasting timer for people who want to eat in a window, not join a program. Two taps to start. A ring that fills, with fasting stages marked on it, ketosis included. Forgiving streaks that survive one busy day. A weight trend line. No ads, no quiz funnel, no AI coach. Timer, stages, streaks and weight log are free forever. Plus ($29.99/yr) adds full history, journaling, custom durations and CSV export. Android today. iOS is in review.
I started eating in a window last year and went looking for a timer. What I found was a category that had turned on its own users. Zero moved to a $69.99/yr freemium model in 2024 and pulled things people had been using for free; the threads about it still haven't stopped. One of the biggest names in the category carries a 4.7 on the app stores and a "Bad" rating on Trustpilot, where the reviews are almost entirely about billing. Nobody was just building a good timer.
So before writing any code I went through store reviews and Reddit threads and wrote down every complaint I could find. Halfday is what that list asked for.
What's in it today:
• Count-up timer with editable start and stop. It's derived from a timestamp, so force-quitting the app or crossing a timezone doesn't lose your fast. • Fasting stages marked on the ring, ketosis included, with a plain-language card explaining what's actually happening. Free — that's specifically what Zero moved behind Plus. • Forgiving streaks with automatic freezes. One bad Tuesday shouldn't erase six weeks. • Weight log with a trend line. History and stats for your last 30 days. • Presets for 16:8, 18:6 and 20:4. Pick one or ignore them; nothing nags you. • Light and dark. No ads, no ad SDKs, no third-party analytics.
Halfday Plus is $29.99/yr or $3.99/mo, shown in your local currency on the paywall. It buys depth, not access: history beyond 30 days, notes on each fast, custom durations from 12 to 72 hours, theme lock, CSV export. The daily loop never moves behind the paywall, and that pledge is written inside the app, not just in a launch post.
Four things I'd rather tell you than have you find out:
• It's Android only right now. The iOS build is submitted and sitting in Apple's review queue. • Sign-in is required (Google). I know forced accounts are one of the things people hate about this category. I did it so a reinstall doesn't lose your history — but it's the decision I'm least settled on, so if you'd want a local-only mode, say so. • No widget and no watch app yet. Both are next. I didn't want to list features that don't exist. • It went live on Play a few days ago with essentially zero users. This is day one, not a growth story.
Deliberately not in it: food logging, an AI coach, recipes, a community feed, a quiz funnel, dynamic pricing.
What I'd like from you: try to break the timer, and tell me where it feels wrong. I'm also genuinely curious whether "free forever, in writing" reads as credible or as marketing to you — the whole design leans on it being believable.
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About Halfday on Product Hunt
“Fasting timer with stages and streaks. Free forever, no ads”
Halfday was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #111 on the daily leaderboard. Halfday is a fasting timer for people who want to eat in a window, not join a program. Two taps to start. A ring that fills, with fasting stages marked on it, ketosis included. Forgiving streaks that survive one busy day. A weight trend line. No ads, no quiz funnel, no AI coach. Timer, stages, streaks and weight log are free forever. Plus ($29.99/yr) adds full history, journaling, custom durations and CSV export. Android today. iOS is in review.
Halfday was featured in Android (57.4k followers), Health & Fitness (83k followers) and Lifestyle (1.7k followers) on Product Hunt. Together, these topics include over 77.6k products, making this a competitive space to launch in.
Who hunted Halfday?
Halfday was hunted by Quantdesk. 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 Halfday stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Quantdesk
I started eating in a window last year and went looking for a timer. What I found was a category that had turned on its own users. Zero moved to a $69.99/yr freemium model in 2024 and pulled things people had been using for free; the threads about it still haven't stopped. One of the biggest names in the category carries a 4.7 on the app stores and a "Bad" rating on Trustpilot, where the reviews are almost entirely about billing. Nobody was just building a good timer.
So before writing any code I went through store reviews and Reddit threads and wrote down every complaint I could find. Halfday is what that list asked for.
What's in it today:
• Count-up timer with editable start and stop. It's derived from a timestamp, so force-quitting the app or crossing a timezone doesn't lose your fast.
• Fasting stages marked on the ring, ketosis included, with a plain-language card explaining what's actually happening. Free — that's specifically what Zero moved behind Plus.
• Forgiving streaks with automatic freezes. One bad Tuesday shouldn't erase six weeks.
• Weight log with a trend line. History and stats for your last 30 days.
• Presets for 16:8, 18:6 and 20:4. Pick one or ignore them; nothing nags you.
• Light and dark. No ads, no ad SDKs, no third-party analytics.
Halfday Plus is $29.99/yr or $3.99/mo, shown in your local currency on the paywall. It buys depth, not access: history beyond 30 days, notes on each fast, custom durations from 12 to 72 hours, theme lock, CSV export. The daily loop never moves behind the paywall, and that pledge is written inside the app, not just in a launch post.
Four things I'd rather tell you than have you find out:
• It's Android only right now. The iOS build is submitted and sitting in Apple's review queue.
• Sign-in is required (Google). I know forced accounts are one of the things people hate about this category. I did it so a reinstall doesn't lose your history — but it's the decision I'm least settled on, so if you'd want a local-only mode, say so.
• No widget and no watch app yet. Both are next. I didn't want to list features that don't exist.
• It went live on Play a few days ago with essentially zero users. This is day one, not a growth story.
Deliberately not in it: food logging, an AI coach, recipes, a community feed, a quiz funnel, dynamic pricing.
What I'd like from you: try to break the timer, and tell me where it feels wrong. I'm also genuinely curious whether "free forever, in writing" reads as credible or as marketing to you — the whole design leans on it being believable.