OneARK

One kind thing. Every day.

OneARK shows you one act of random kindness per day — something small, real, and genuinely doable. 365 of them. Free. Works offline. No account required.

Available in the US, Canada, and UK.

365 acts. One for every day of the year.

From “Leave a positive sticky note inside a library book” to “Do one kind thing today that no one will ever know was you” — every ARK in the library is written to be genuinely doable. No grand gestures. No cost assumptions. No moralizing. Just the small human kindnesses that actually change the texture of a day.

Each day a new act rotates in. Work through the year and you’ll have done 365 small, real things you might not have done otherwise.

On a phone

OneARK app home screen showing today’s act of random kindness with an ‘I did this’ button below — Today’s act — one tap when you’re done

OneARK app showing today’s act of random kindness marked as done — That’s it. That’s the whole thing.

OneARK app showing yesterday’s act of random kindness — Yesterday is always one tap away

OneARK app showing the streak counter: 2 acts, 2 days running — Your streak — it roots for you, not against you

Share the moment.

Completed your ARK? Share a card — a clean image with today’s act on it. Post it, text it to someone, or keep it for yourself. It counts either way.

Streaks, gently.

OneARK tracks how many days running you’ve done your ARK. But it’s a streak that roots for you, not one that punishes you. Miss a day and pick up where you left off. The goal is a habit, not a perfect score.

What you won’t find here.

No accounts or sign-ins. Nothing leaves your device.
No ads. Not a single one.
No in-app purchases. Free means free.
No internet required. Every ARK is bundled in the app — works offline, everywhere, always.
No notifications pestering you. Open it when you feel like it.

We can’t predict the future, but we think it will be kind.