Product Comparison Summarizer
Free to download on every platform. Comes pre-installed on BotFone, BotPad and BotFlip — with extra free apps included.
About this app
WHAT IT DOES
The Product Comparison Summarizer scans the current page for product listings—capturing names, descriptions, feature bullets, prices, specifications, and ratings—then builds a structured comparison table and narrative summary. It highlights exactly where products differ (e.g., price, CPU, battery life, warranty), where they agree (e.g., same connectivity ports, similar weight), and ends with a tailored recommendation for each item based on its relative strengths and weaknesses. No more juggling browser tabs or manually copying specs into a spreadsheet.
WHERE IT RUNS
It runs as a draggable overlay panel inside the BotGentz browser extension. It works on virtually any shopping page that displays multiple products in a grid or list—Amazon, eBay, Best Buy, Walmart, Newegg, Target, Etsy, AliExpress, and thousands of Shopify/Magento storefronts. It requires no special permission from the site; it reads only the visible DOM of the page you are already on.
HOW TO USE
1. Ensure the free BotGentz extension is installed and enabled.
2. Navigate to any product category or search results page showing at least two products.
3. Click the BotGentz toolbar icon and choose "Product Comparison Summarizer" from the list.
4. The panel opens within 2–3 seconds. If products are detected, you will see a table with one row per product.
5. Scroll through the comparison columns—price, top features, specifications, and a "standout" badge.
6. Read the auto‑generated "Key Takeaways" paragraph and the individual recommendation for each product.
7. Click any product name in the panel to smoothly scroll to its location on the original page.
8. Drag the panel by its header, resize it, collapse it, or press Escape to dismiss.
THE ACTUAL MECHANISM — structural entropy reduction with attribute‑slot voting
Most comparison tools break when site HTML changes because they rely on fixed CSS selectors. This summarizer does not. It first performs a "structural entropy reduction" pass: it flattens the DOM into a tree of text‑dense nodes, then clusters nodes with similar sibling patterns using a fast Jaccard similarity on tag‑path n‑grams. From each cluster, it extracts candidate attribute labels (e.g., "Price", "Resolution", "Material") by looking for colon‑separated or bold‑adjacent text. Then it runs a weighted voting scheme across all product cards: each candidate label receives votes from every card where a matching value (with compatible units—$xx.xx, xxGB, xxW, xx‑inch) appears in the same relative DOM position. The label with the highest cross‑card vote count becomes a "slot" (e.g., "Battery life"). Values for that slot are then pulled from each card, aligned automatically. This slot‑voting mechanism is robust to layout shifts, renamed labels, and even different HTML templates per product—because it chooses slots based on consensus across cards, not on hard‑coded rules. All processing is local, zero cloud inference, zero training data.
THE PANEL
The panel is fully interactive: drag it anywhere by clicking and holding its title bar. When you release, it snaps to the nearest edge of the viewport (top, bottom, left, right) for a tidy workspace. Resize it horizontally by grabbing the left or right border—width adjusts in real time, and content scrolls vertically if needed. A minimize button collapses the panel to a small floating chip displaying "▼ Comparison"; click the chip to expand back. Press the Escape key at any time to close the panel entirely. The panel remembers its last position, size, and expansion state per domain using localStorage.
PLEASE NOTE
- This tool requires the free BotGentz extension (available for Chromium‑based browsers and Firefox) and an active monthly subscription to the Summarizer plan.
- All comparison summaries and recommendations are generated by an on‑device language model and are for guidance only. Always verify critical details (e.g., compatibility, dimensions, warranty terms) directly on the product page before making a purchase decision.
- Online storefronts update their HTML regularly; if the summarizer fails to detect products or shows misaligned data, use the "Report issue" link in the panel footer. We monitor reports and push script updates weekly.
- No product data, page HTML, or personal information is ever transmitted to our servers. The extension processes everything locally. Anonymous telemetry (panel open/close events and error types) is collected to improve reliability; you can disable this in the extension settings at any time.
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