Show HN: I built an app to review your time spent outdoors

https://www.daylightgoals.com/

2•jclardy•1mo ago

Hey HN,

I've just released an update to my iPhone/Apple Watch app Daylight Goals which includes a new feature - your Daylight Recap for 2025.

If you've been wearing an Apple Watch for the past year it has been recording your time spent outdoors (So long as the screen is mostly uncovered.) My app charts and graphs it, along with giving you daily goal updates to make sure you get your 20 mintues of sunlight per day.

The recap feature is free, you just need to close out the paywall during onboarding.

Comments

brandonb•1mo ago

This is cool! It'd be interesting to correlate this with Vitamin D too.

jclardy•1mo ago

Thanks! I'm looking into Vitamin D estimation for a future version, the main issue is there are a ton of factors that need to be considered, the main one is simply how much skin you have exposed when you are outdoors. A simple question but it requires a dedicated user to update the app with their wardrobe every day.

lumirth•1mo ago

Tangential to the post’s content (and the app is cool, by the way), but is anybody ever bothered by app/website landing pages that look like they’re AI-generated? I’m not even sure most of them are, but current AI models are so effective at creating those icon + feature grids that now every time I see one, my eyebrow raises so high it hits the ceiling.

jclardy•1mo ago

In this case you are spot on, the landing page is AI generated, just because I've never enjoyed doing front-end web development myself. That plus this app is very deeply rooted in Apple's platforms (Essentially requiring an Apple Watch to be effective), the majority of users are coming from app store search directly, rather than through the landing page.

USS Preble Used Helios Laser to Zap Four Drones in Expanding Testing

Show HN: Animated beach scene, made with CSS

An update on unredacting select Epstein files – DBC12.pdf liberated

Was going to share my work

Pitchfork: A devilishly good process manager for developers

You Are Here

Why social apps need to become proactive, not reactive

How patient are AI scrapers, anyway? – Random Thoughts

Vouch: A contributor trust management system

I built a terminal monitoring app and custom firmware for a clock with Claude

Tiny C Compiler

Y Combinator Founder Organizes 'March for Billionaires'

Ask HN: Need feedback on the idea I'm working on

OpenClaw Addresses Security Risks

Apple finalizes Gemini / Siri deal

Italy Railways Sabotaged

Emacs-tramp-RPC: high-performance TRAMP back end using MsgPack-RPC

Nintendo Wii Themed Portfolio

"There must be something like the opposite of suicide "

Ask HN: Why doesn't Netflix add a “Theater Mode” that recreates the worst parts?

Show HN: Engineering Perception with Combinatorial Memetics

Show HN: Steam Daily – A Wordle-like daily puzzle game for Steam fans

The Anthropic Hive Mind

Just Started Using AmpCode

LLM as an Engineer vs. a Founder?

Crosstalk inside cells helps pathogens evade drugs, study finds

Show HN: Design system generator (mood to CSS in <1 second)

Show HN: 26/02/26 – 5 songs in a day

Toroidal Logit Bias – Reduce LLM hallucinations 40% with no fine-tuning

Top AI models fail at >96% of tasks