Life & fun · alternatives · 2026
24 alternatives to Stardust
Scientific cycle tracker with ancient wisdom, astronomy & AI
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Stardust launched in 2023; newer entries below may have overtaken it.
- 1
- 2IM
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.
2024 · play.google.com · its alternatives →
- 3AAAstro App▲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…
2024 · astro.sshh.io · its alternatives →
- 4
Lutea▲57Track your cycle - 100% transparent, 100% your data
2022 · play.google.com · its alternatives →
- 5
- 6
Lotus▲92A calendar to help women’s track their menstrual cycle
2017 · apps.apple.com · its alternatives →
- 7
Pillar▲79A smart pocket coach: Take your cycling to the next level.
2021 · pillar-app.com · its alternatives →
- 8
Bike AI garage: track and maintain bicycle parts
Jan 2026 · biker.dev · its alternatives →
- 9
Marble▲114A straightforward intermittent fasting tracker
2024 · solidfoundation.app · its alternatives →
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- 11
- 12
- 13
Movesum▲72A new step counter concept that motivates you to exercise
2016 · apps.apple.com · its alternatives →
- 14
UrbanCyclers▲83App and social platform for boosting cycling in cities
2017 · cyclers.app · its alternatives →
- 15
- 16HA
2017 · helix.startuplab.io · its alternatives →
- 17AR
2016 · play.google.com · its alternatives →
- 18
Track your menstrual cycle with accuracy and total privacy
2025 · faye.health · its alternatives →
- 19
I kept trying to explain how important outdoor light is and how most people aren’t getting enough. Eventually I figured that showing is more effective than telling. So we built a free app that uses your Apple Watch or iPhone to automatically track your light exposure throughout the day. It tells you if you’re getting enough, shows you how consistent you are, and rewards habits that support hormone balance. It's in beta on TestFlight, let me know what you think!
2025 · lumehealth.io · its alternatives →
- 20
extension , AI, CycleSync, menstrual tracking , menstrual
2025 · chromewebstore.google.com · its alternatives →
- 21
#reproductivehealth
2025 · cycle-muse-tracker-fitness.lovable.app · its alternatives →
- 22
Your period data never leaves your phone. 100% private.
Nov 2025 · apps.apple.com · its alternatives →
- 23
Real-time astronomy feeds: Arxiv astrophysics preprints, NASA Gamma-ray Coordinates Network transient alerts, Minor Planet Center discoveries, NOAA space weather, and more.
Jun 2026 · starscope.live · its alternatives →
- 24
App for anyone passionate about astrology
2025 · play.google.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →