
GeoTrace – GPS Area Calculator
Measure any land area by just walking the boundary
What it does
GeoTrace is a GPS area calculator for Android that lets you measure any land by simply walking the boundary or drawing on the map. Instantly get area, perimeter & distance in acres, hectares, sq. meters & sq. feet. Works fully offline, supports PDF export, and is perfect for farmers, surveyors, hikers & property owners. Currently in open beta — free to download!
Does the same job
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Land Area Calculator by OrangeBotAug 2026 · orangebot.ai · ▲1Trace a parcel on the map, get acres in seconds
- G3Global 3D topography explorer2025 · topography.jessekv.com · ▲118
I made a web app to generate 3D models of real places on earth from land cover and elevation data. Click anywhere on the map to get a polygon, and then click "generate". It should work at most scales, but if your watershed or region selection is too large, the result can be less exciting because it's so flat. As a warning, the 3D models can sometimes be too much for my phone. It's nicer on desktop. I'm still working better on mobile support. The land cover data I'm using gives a cool effect, but at some point I'd like to add in global imagery and clouds. The backend is a Python thread…



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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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Dev tools · May 2026 · github.com