Lutea

What it does

Lutea is a free, privacy focused cycle charting app that helps you visualize your fertility biomarkers in a chart. All data belongs to you and is stored only on your device. Lutea allows you to track your cervical mucus, basal body temperature and more.

• IM
  I made a privacy friendly and simple app to track my menstruation2024 · play.google.com · ▲732

  Hey HN, after the app I actually used to track my period wanted me to log in and save my data in the cloud, I decided to write my own. Most apps in this area are based on a subscription model and display far too much information anyway. For me, a simple calendar is enough where I can add a few notes if necessary. So that is the result of my work - a simple design and the data is only saved on the smartphone.

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  heraNov 2025 · apps.apple.com · ▲187

  track your period safely

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  LadyLog - A period tracker2024 · play.google.com · ▲89

  Easy to use period tracking app that respects your privacy

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  LutealJun 2026 · luteal.fr · ▲2

  The cycle tracker focused on emotional awareness.

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  Lotus2017 · apps.apple.com · ▲92

  A calendar to help women’s track their menstrual cycle

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  Period Tracker2025 · play.google.com · ▲13

  Track your cycle, ovulation & PMS with ease

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  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 · 3d ago · permit.petercai.com

• IV
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  Life & fun · 16d ago · tanzaniaeducationproject.org

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  Life & fun · 17d ago · bigwords.page

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  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 · 10d ago · guitoro.com

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  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 · 14d ago · carrierexplode.com

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  Life & fun · 24d ago · space.bl2.net

• AF
  A friend and I spent 6 years making a simulation game, finally released▲1,157

  I've seen some interests in (simulation) video games here on HN so I thought I'd share a short version of our story. More than 6 years ago, me and my friend from university were playing around with an idea of making a game we always wanted to play. We worked on it on weekends but the progress was quite slow, especially due to so many dead ends and wasted effort. Eventually however, we solidified our direction and decided to take the risk to resign from our well paid SWE jobs and work on it full time. It took more than a year but yesterday we have finally released it on Steam:…

  Life & fun · 2022

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  A central bank simulator game with a realistic economic model▲815

  Life & fun · 2022 · benoitessiambre.com

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  I stripped DALL·E Mini to its bare essentials and converted it to Torch▲663

  min(DALL·E) is a fast, minimal port of DALL·E Mini to PyTorch - kuprel/min-dalle

  Life & fun · 2022 · github.com

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  Untitled UI Icons▲634

  1,100+ free Figma icons for modern UI design.

  Dev tools · 2022 · untitledui.com

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  MakerBox▲621

  600 tools with generous free plans for indie entrepreneurs

  Dev tools · 2022 · makerbox.club

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  Typedream CMS▲593

  Display your Notion data beautifully on your site, no-code

  Dev tools · 2022 · typedream.com