
Penny
Shop smarter, not harder
Penny launched on May 7, 2026. The site was not reachable when checked in September 2026.
What it does
Penny is a free Chrome extension that automatically finds cheaper alternatives to anything you're shopping for, applies working coupons at checkout, and tracks price drops. Stop overpaying. Install in 5 seconds.
Does a similar job
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Penny, an easy way to track your spending2016 · pennyapp.io · ▲89Meet Penny, your personal finance coach. Spend smarter, save more, live happier.
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Source: Product Hunt launch ↗
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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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