Tide
Adaptive nutrition coaching for Apple Watch
What it does
Tide reads sleep, HRV, training load, and wrist temperature from your Apple Watch — then recalibrates today's calorie target each morning. The first nutrition coach that adapts to how your body actually feels today, not the spreadsheet you set in January.
Does the same job
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ShapeSync – AI Health CoachJul 2026 · apps.apple.com · ▲3Your Apple Watch is wrong about your calories. We fix that.
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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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