Life & fun · alternatives · 2026

24 alternatives to LEONA AIR FLOW
The first Easy-to-Remove Menstrual Cup in the world.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. LEONA AIR FLOW launched in 2018; newer entries below may have overtaken it.
- 1
Cherie▲126Sustainable, eco-friendly period undies and menstrual cups.
2019 · hercherie.com · its alternatives →
- 2

- 3IM
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 →
- 4

Hi HN, This is my attempt to fix groggy mornings by lowering my bedroom CO2 from 1700 ppm to ~900 ppm. I designed a simple, 3D-printed fan duct that directs air under the door to improve air circulation. A note on the design process: I used CadQuery, a Python library for creating parametric 3D models. I didn't know tools like this existed and highly recommend it if you can program; it turned out to be more convenient than manually iterating on prototypes in a GUI. The project is open source and the post explains the full build. Happy to answer any questions.
2025 · lepekhin.com · its alternatives →
- 5

A super-thin, reusable pad that saves you money.
2021 · wearedame.co · its alternatives →
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BedJet 3▲91Sleep inducing climate control just for your bed 🛌❄️
2018 · kickstarter.com · its alternatives →
- 9

An air purification system designed as a headboard
2022 · kickstarter.com · its alternatives →
- 10
Lotus▲92A calendar to help women’s track their menstrual cycle
2017 · apps.apple.com · its alternatives →
- 11
Aunt Flow▲100100% organic cotton menstrual products for businesses
2018 · goauntflow.com · its alternatives →
- 12
Lutea▲57Track your cycle - 100% transparent, 100% your data
2022 · play.google.com · its alternatives →
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- 15AA
Hi all, We're Fabienne and Ewan of Climacrux. Today we're proud to launch our latest project to try and make carbon dioxide removal as accessible as possible: CDR Platform [1]. In short: it’s an API to connect to a portfolio of carbon removers. You can purchase from as low as a single gram and select from both natural and technological removal methods. Longer: A couple of years ago we launched an alternative to carbon credits, Carbon Removed[2], designed for individuals to buy and subscribe to CDR. But we always had the nagging thought that there was more that could be done. CDR Platform is…
2022 · docs.cdrplatform.com · its alternatives →
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Climeworks permanently removes carbon dioxide from the air.
2020 · climeworks.com · its alternatives →
- 18
PourMi▲88Voice enable your kitchen faucet with precise measurements
2018 · kickstarter.com · its alternatives →
- 19

Join The Ethical Sanitary Revolution
2019 · medium.com · its alternatives →
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- 22IM
Hello everyone, My son loves Hacker News, so I am using his account. I love innovation and technology. With the restrictions due to Coronavirus from practicing in my clinic. I created a system that replaces the air in my office in 20 seconds. Those vacuums are also filled with UV-rods inside to kill any viruses. The air is release below the office in a 2-3 foot basement, which is also filled with UV rods. https://youtu.be/UfYt1w156QA https://youtu.be/UpO8WXOlgcQ (side-by-side) Given how much my son enjoys Hacker News I thought you would all enjoy it. Here are…
2020 · its alternatives →
- 23

Track your menstrual cycle with accuracy and total privacy
2025 · faye.health · its alternatives →
- 24

The Most Powerful Wall-Mounted Air Purifier
2020 · kickstarter.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 →