HydroSleep — Baby Tracker

What it does

Privacy-first baby tracker for ages 6 months – 3 years. Tracks sleep (with wake window predictions), breastfeeding, temperature, medications, vaccinations, growth with WHO percentiles, and milestones. Generates a PDF report for pediatrician visits. All data stays on your device — no account, no cloud, no ads. Optional sync to your Synology NAS or any WebDAV server over local network only. One-time purchase, $0.99.

• 
  Nara Baby2019 · ▲152

  Essential baby tracking app for new parents

• 
  Baby Tracker2018 · ▲76

  Keep track of what matters most

• 
  Nursey: Baby trackerMar 2026 · ▲2

  The simplest baby tracker for sleep-deprived parents

• 
  Milk MonsterJul 2026 · milkmonster.app · ▲15

  The baby tracker two parents actually share, live

• 
  LittleLog: Baby Tracker & Meds SchedulerMay 2026 · play.google.com · ▲2

  Private baby tracker with reliable medication alarms

• 
  No Fuss - Baby Tracker With AttitudeMar 2026 · ▲3

  Boob timer, poop counter, sleep tracker. Swears a little.

• TL
  The load-bearing vocabulary of Claude▲703

  Life & fun · 10d ago · louisabraham.github.io

• 
  iPhone app takes simultaneous images from 2 lenses, fuses into 1 photo▲329

  Photosynthesis fires two of your iPhone

  Life & fun · 29d ago · photosynthesis.camera

• 
  SoloUno▲310

  Take control of hair pulling, nail biting & skin picking

  Life & fun · 28d ago · solouno.io

• 
  Scroll through all 43252003274489856000 Rubik's Cube states▲295

  Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.

  Life & fun · 27d ago · everycube.alen.is

• 
  Expeditione▲265

  The Interactive 3D Encyclopedia

  Life & fun · 21d ago · expeditione.fun

• 
  Eigendrum - Draw any shape and hear what it sounds like as a drum▲243

  Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…

  Life & fun · 27d ago · baselashraf81.github.io

• 
  Fundraisly▲1,544

  AI fundraising agent that finds investors and books meetings

  AI · Jun 2026 · fundraisly.com

• H6
  Homebrew 6.0.0▲1,481

  Today, I’m proud to announce Homebrew 6.0.0. The most significant changes since 5.1.0 are a new tap trust security mechanism, the new faster, smaller, default internal Homebrew JSON API, sandboxing on Linux, better defaults informed by our user survey, many brew bundle improvements, improved performance and initial support for macOS 27 (Golden Gate). Happy to discuss any questions here!

  Dev tools · Jun 2026 · brew.sh

• PU
  Performative-UI – A react component library of design tropes▲1,181

  hope you enjoy

  Life & fun · Jun 2026 · vorpus.github.io

• 
  Upstream▲977

  The inbox designed for humans and agents

  AI · Jun 2026 · upstream.do

• 
  Goldfish▲962

  Press Option. It knows your work and replies like you

  AI · Jun 2026 · goldfish.sh

• IM
  I made Google Trends for Hacker News by indexing 18 years of comments▲822

  Life & fun · Jun 2026 · hackernewstrends.com