Zroppix
AI tells you BUY or WAIT on any Amazon product
What it does
Amazon changes prices 2.5M times per day. Most shoppers have no idea if today's price is a deal or near the all-time high. Zroppix fixes that. Open any Amazon product, click the icon, get an instant BUY or WAIT verdict in 5 seconds. → 90-day price history → Overpay risk score → What % of buyers paid less → Email alerts when price drops Free. No account needed. Works on Chrome and Brave. Stop shopping blind.
Does the same job
all alternatives →

Second OpinionJul 2026 · chromewebstore.google.com · ▲12An honest AI second opinion before you buy on Amazon

- IBI built a Free price comparison tool for Amazon, eBay, and AliExpress2025 · oneclickcompare.com · ▲21
Hey HN! I'm excited to announce the launch of my new project - OneClickCompare. Compare prices from Amazon, eBay, and AliExpress in seconds with OneClickCompare. Simply search for any product and instantly find the lowest prices in one place. Save time and money today! I will continue to improve this and would love to get your feedback / suggestions! :)
- GAGet an email when the price drops on any product's URL. No spam2025 · lowlow.bot · ▲9
Hey HN, We built https://LowLow.bot, a website (no app or extension required) that tracks price drops and restocks on your favorite products — without the need to sign up for marketing emails. Inspired by https://camelcamelcamel.com for Amazon, we wanted the same experience for any website. Some ways people use it: • Big purchases, no rush – Buy ski gear when the price drops before next season. • Recurring essentials – My partner’s pricey sunscreen? I buy it when it’s on sale. • Holiday sales – Get notified before deals disappear. • Restock alerts – Be the first to know…
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Hey HN, Henry from Cactus here! We previously released Cactus Needle, a 14MB agentic LLM for tool call, device use, and structured extraction for phones, wearables, smart homes, small robots and microcontrollers. We got really great feedback here, and have now incorporated the suggestions to release Needle 2. The whole model is a single 14MB binary that runs a full session in 28MB of RAM; 45m parameters at 2bit compression. Needle hits 500 tokens/sec decode speed on a Raspberry Pi 5, sits between 400-1,500 tokens/sec on VR devices like Meta Quest 3S and Apple Vision Pro, and ranges…
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Parallel agents, diff reviewer, and multi-model comparisons
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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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