Show HN: PrecisionRush: a tiny timing game inspired by the iPhone stopwatch

1 points by mrgrj 5mo ago ↗ HN

PrecisionRush is a small free iOS timing game I built solo. Weirdly enough, the idea came from playing with the default iPhone stopwatch and thinking: what if this was an actual game?

I’m not much of a gamer myself (I’ve only played a handful of games), but something about this tiny mechanic got stuck in my head, so I decided to build the version I personally wanted to play.

The premise is simple: you get a target time, you start the timer, and your goal is to stop it as close to the target as possible. If you land within ~20ms it feels almost unreal. It’s a tiny concept, but it turned out to be surprisingly addictive.

I shipped it last week and I’m currently in the “first real users” phase. I’ve only got a handful of ratings so far, but I’ve been genuinely happy just seeing people try it. One unexpected thing: a few users even tapped “Support the developer”, which I honestly didn’t think would happen.

I do this on the side and I’m definitely not a top game designer or UX person - I just like building small things I enjoy and iterating on them. I haven’t done any marketing yet and I’m not trying to sell anything here. I’d just love honest feedback from people who enjoy minimal games or quick skill tests:

- Does it stay fun after a few minutes, or does it get repetitive? - Is the UI/feedback loop satisfying and clear? - Anything obvious you’d improve or add?

App Store link: https://apps.apple.com/ro/app/precisionrush/id6755596108

Thanks for reading.

1 comment

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mrgrj 5mo ago ↗

A couple implementation notes: it’s built in Swift/SwiftUI, and I’m using a monotonic time source rather than wall clock time. I tried to keep the feedback loop consistent (haptics + simple visuals), because the whole game is about perceived timing.

I’d especially love feedback on the difficulty curve and whether the scoring/feedback feels fair/satisfying.