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Sustain: Focus & Study Timer
Train your focus like an athlete — a calm focus timer
A calm focus timer built on one idea: focus is trainable, like a muscle. Do deep Flow sessions, take real phone-free breaks, and watch your stamina grow. A beautiful falling hourglass, three modes, no ads, no tracking — nothing collected, ever.
Hi everyone — I'm Deep, the solo maker of Sustain.
I built Sustain because most focus apps felt wrong to me. They either shout at you with a giant countdown, guilt-trip you with streaks, or quietly harvest your data. I wanted the opposite: a calm, honest tool that treats focus as something you can actually train.
So it's built on one idea — focus is trainable, like a muscle. You do a deep Flow session, push through the awkward "struggle" phase into real flow, then take a phone-free break to recover. Over time your focus stamina grows and the app adapts to it. There's Pomodoro and a fully custom mode too.
The whole screen is one falling hourglass and nothing else — no clutter, no dopamine tricks. And it collects nothing: no accounts, no ads, no tracking, everything stays on your device. The core loop is free forever; Pro just adds deeper insights and extra themes.
It's Android-first — I'm bootstrapped and building on what I can afford, iOS comes as it grows. I'd genuinely love your honest feedback: does the "train your focus" framing land? What would make this your daily focus tool?
Thanks for taking a look.
About Sustain: Focus & Study Timer on Product Hunt
“Train your focus like an athlete — a calm focus timer”
Sustain: Focus & Study Timer was submitted on Product Hunt and earned 0 upvotes and 4 comments, placing #42 on the daily leaderboard. A calm focus timer built on one idea: focus is trainable, like a muscle. Do deep Flow sessions, take real phone-free breaks, and watch your stamina grow. A beautiful falling hourglass, three modes, no ads, no tracking — nothing collected, ever.
On the analytics side, Sustain: Focus & Study Timer competes within Android, Productivity and Time Tracking — topics that collectively have 725.4k followers on Product Hunt. The dashboard above tracks how Sustain: Focus & Study Timer performed against the three products that launched closest to it on the same day.
Who hunted Sustain: Focus & Study Timer?
Sustain: Focus & Study Timer was hunted by trilumos. 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.
For a complete overview of Sustain: Focus & Study Timer including community comment highlights and product details, visit the product overview.
trilumos