
PranaSync: Breathwork and Calm
Build a daily breathwork routine with guided sessions
What it does
PranaSync helps you practice breathing exercises, track your progress, and stay consistent without needing an account. Choose your goal and experience level, get a recommended starting practice, then follow a clean visual breathing guide designed for calm, focused sessions. GUIDED BREATHING PRACTICES • Follow structured inhale, hold, exhale, and recovery patterns PERSONALIZED PRACTICES • Choose your goal and experience level TRACK YOUR PROGRESS • View session history and daily goal progress
Does the same job
all alternatives →- IMI'm a doctor and made a responsive breathing app for stress and anxiety2023 · lungy.app · ▲666
Hey HN! Some more info: I’m an NHS doctor and the founder of Pi-A (https://www.pi-a.io) which developed Lungy (https://www.lungy.app). Lungy is an app (iOS only for now) that responds to breathing in real-time and was designed to make breathing exercises more engaging and beneficial to do. It hopefully has many aspects of interest to the HN community – real-time fluid, cloth and soft body sims running on the phone’s GPU. My background is as a junior surgical trainee and I started building Lungy in 2020 during the first COVID lockdown in London. During COVID, there were…
- EBEvery Breath You Take – Heart Rate Variability Training2023 · github.com · ▲348
Through controlled breathing it is possible to regulate your body's stress response. I've built an app to measure and train this effect with a Polar H10 Heart Rate monitor. With every breath you take, you can set the pace of your breathing rate, measure your breathing control with the chest accelerometer, and see how heart rate variability responds.


Breathings: Calm Breathe SleepJul 2026 · play.google.com · ▲2Guided breathing, 49 soundscapes, zero data collected
- IEInteractive exercises for stress and anxiety that respond to breathing2023 · apps.apple.com · ▲31
Hey HN! I’m an NHS doctor and the founder of Pia (https://www.piahealth.co) which developed Lungy (https://www.lungy.app). Lungy is an app (iOS only for now) that responds to breathing in real-time and was designed to make breathing exercises more engaging and beneficial to do. It’s been one year since Lungy launched (here’s the original ShowHN: https://news.ycombinator.com/item?id=34534615) - I was absolutely delighted with the response. One year on, we have re-designed and rebuilt the whole app, and added a real-time, 3D soft body solver which gives some…
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Launched alongside, May 2026
the whole month →

Parallel agents, diff reviewer, and multi-model comparisons
Dev tools · May 2026 · kilo.ai


- NW
Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
Life & fun · May 2026 · github.com
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Dev tools · May 2026 · github.com