Work · alternatives · 2026
24 alternatives to Onin – E2EE calendar and chat app
Hey HN! Ryan here (co-founder of YC-backed Muzz). I’m now building Onin, an end-to-end encrypted calendar and chat app that makes organising your personal and social life simple and secure. I’ve been building technology businesses for 10+ years and have witnessed the reoccurring problem that digital calendars were built for companies, not people. They feel cold, transactional, and anti-social — not the thing of dreams for planning your personal life. They also lack the security we now come to expect from consumer products. Onin is the first calendar to be fully E2EE, protecting not just your…
Onin is an end-to-end encrypted calendar and chat application designed for organizing personal and social life. It combines calendar scheduling with messaging features, with full E2EE encryption protecting events… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Onin – E2EE calendar and chat app launched in 2022; newer entries below may have overtaken it.
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Hello HN community, This is bootstrapped/indie hacker-ish. Would appreciate feedback. What it is: You create a link (e.g. onair/yourname), and anyone can call you from it. Caller uses a web browser to make the call (not dedicated app). You can create as many links as you want, and can direct calls to colleagues in a round-robin or escalation manner. In a way, it's like the "opposite of Calendly"; whereas Calendly is about meetings in the future, OnAir is about immediate meetings. Motivation behind it: One of our SaaS products was struggling to grow. We believed that if we provide…
2024 · onair.io · its alternatives →
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LinkedIn insights right in your calendar, 100% free
2021 · getnametags.com · its alternatives →
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Helping friends spend more time together In Real Life!
2019 · irl.com · its alternatives →
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Joyn'it▲77Beautiful social media platform dedicated solely to events
2018 · app.joynit.io · its alternatives →
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OI Calendar▲78Encrypted, decentralized alternative to Google calendar
2019 · cal.openintents.org · its alternatives →
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2016 · github.com · its alternatives →
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Hey there, First time posting on Hacker News in about 2 years! The reason I’m posting is that I thought I’d write about the product I’ve been building, in hopes it resonates with people. Why build yet another social app? Because I deleted almost all social media around 3/4 years ago as it was just net negative on my life. There was very little that was truly interesting, I didn’t care about looking good to other people and because of the ‘media’ and ads, the apps were all designed to make me spend too much time for what I was getting. I hated it and what it meant for people’s behaviour,…
2022 · oncircles.com · its alternatives →
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KoiHi▲97Make your own WhatsApp with E2EE self hosted chat solution
2023 · koihi.com · its alternatives →
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XChat▲175The standalone, encrypted messaging app from X
Apr 2026 · apps.apple.com · its alternatives →
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Howbout▲74Social calendar app to easily make plans & find availability
2021 · howbout.app · its alternatives →
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Layers▲61The private network strangers literally can't reach you on.
Apr 2026 · layers-app.com · its alternatives →
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Notes, tasks, calendar, and AI in one E2E encrypted app.
Jul 2026 · notte.com · its alternatives →
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Chat'Inn▲69Miminal, Clean and Realtime Global Chat Application
2022 · chat-inn.vercel.app · 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 →