
AddFive
Just add 5 (kg | km | min)
What it does
Every fitness app I tried handled one thing. None applied the math of progressive overload to everything. So I built AddFive: 7 algorithms for strength, running, HIIT and calisthenics. I didn't want a spreadsheet, so each exercise is the star of the UI. I didn't want robotic TTS, so I spent way too long casting actual voice personas on ElevenLabs. 9 coaches, 2,197 unique quotes. Live Activities, Apple Health. Local-first, no account.
Does the same job
all alternatives →

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I am a software developer and in the last few months after recently becoming a father I was barely finding time for a proper workout. Recently I was reading about new research on Snack Exercises and how beneficial mini workouts of less than 2mins every so often, during the day are to our body. So, I decided to build an iOS App for me and others to help with this. The app generates a list of exercises that I need to tick to complete daily or loose my streak. The algorithm takes into account muscle groups and balancing the exercises to hit most main muscles. I also stayed going through all…


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- 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…
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