Stardust

What it does

Stardust is a free cycle tracking app that integrates science, ancient wisdom, astronomy and artificial intelligence to help you find contentment, manifest goals, and befriend your body.

Women-built and data-encrypted, Stardust is the only period, hormone, ovulation & pregnancy app that blends science and astronomy to track your menstrual cycle.

• 
  Stardust2020 · stardust.app · ▲79

  Sync your cycle to the moon and stars 🌝

• AA
  Astro App2024 · astro.sshh.io · ▲291

  I really like Stellarium and SkySafari but I felt like these are primarily geared towards exploring the sky but not so much "here are the long list of things I want to see, when can I see them tonight and where". There's also not really a great option I've found that combines sky object planning + location weather details while still being free so I built this. The UI's heavily inspired by NINAs sky atlas + Robinhood. Right now you can: View the altitude chart of objects and 3D view Create lists of objects of interest View the annual max/min daily altitude of an object to find the best…

• 
  Lutea2022 · play.google.com · ▲57

  Track your cycle - 100% transparent, 100% your data

• 
  Lotus2017 · apps.apple.com · ▲92

  A calendar to help women’s track their menstrual cycle

• HA
  Helix – a habit tracking app2017 · helix.startuplab.io · ▲28
• 
  Faye - Free Privacy-first Period Tracker2025 · faye.health · ▲20

  Track your menstrual cycle with accuracy and total privacy

• 
  SimCity, but with Permits▲936

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 4d ago · permit.petercai.com

• IV
  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 16d ago · tanzaniaeducationproject.org

• 
  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 17d ago · bigwords.page

• 
  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 11d ago · guitoro.com

• 
  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 15d ago · carrierexplode.com

• 
  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 25d ago · space.bl2.net

• 
  Guidde AI▲1,476

  Create video documentation instantly with the magic of AI

  AI · 2023 · guidde.com

• G4
  GPT-4-powered web searches for developers▲1,401

  Hi HN, Today we’re launching GPT-4 answers on Phind.com, a developer-focused search engine that uses generative AI to browse the web and answer technical questions, complete with code examples and detailed explanations. Unlike vanilla GPT-4, Phind feeds in relevant websites and technical documentation, reducing the model’s hallucination and keeping it up-to-date. To use it, simply enable the “Expert” toggle before doing a search. GPT-4 is making a night-and-day difference in terms of answer quality. For a question like “How can I RLHF a LLaMa model”, Phind in Expert mode delivers a…

  AI · 2023 · phind.com

• 
  Lago▲1,013

  Open-source alternative to Stripe Billing and Chargebee

  Dev tools · 2023 · getlago.com

• 
  Chatscout▲691

  Shopping assistant powered by ChatGPT for e-commerce brands

  AI · 2023

• 
  Fabric▲690

  Make notes, tasks, and search, directly from the terminal.

  AI · 2023 · fabric.so

• 
  Rask AI▲683

  Say it in any language, AI based, sounds as good as a human

  AI · 2023 · rask.ai