reddit · SideProject · 10-25 17:50 50 分 ← 返回列表

I built a free price-comparison extension for French shops — it shows on the product page whether the "discount" is real

Hi! I run RadarPromo, a small price tracker for French online shops. The extension is free, with no ads and no account required. What it does. On a product page (Amazon.fr and most French shops), a small badge shows: if the same product is cheaper elsewhere, with the date of each price; the 90-day low and, when available, a 12-month price history; a one-click price-drop alert by e-mail. It reads only product pages. It sends the barcode, the shop's domain and, for unknown produ

五维评分

付费意愿

需求真实度

个人可落地

竞争空间

新鲜度

AI 分析

痛点：法国电商的"划线原价"大多是虚假折扣，消费者无法判断促销是否真实——作者比对约2万个"原价"后发现65.8%从未真实成交过。

目标用户：法国网购消费者，尤其是黑五/促销季比价、担心被假折扣套路的人群

证据：Before Black Friday I compared ~20,000 "was" prices with each shop's own price history: 65.8% had never actually been charged by that shop during the tracked period.

变现：免费扩展，通过电商联盟佣金和导购返利变现；可加付费高级版（12个月价格历史、多商品降价监控、导出报告）；也可把聚合价格数据做成B2B/媒体报告出售。

MVP：用浏览器扩展抓取法国主流电商商品页（Amazon.fr + 几家大站），把条码与爬虫维护的价格历史库匹配，页面上显示"90天最低价/12个月价格曲线/是否真折扣"徽章；先做Amazon.fr单站，加邮件降价提醒，再扩展到更多法国店铺。

竞品：Keepa、CamelCamelCamel、Honey、Idealo、LeDénicheur、Prisjakt

摘要：作者做了一个法国电商免费比价扩展 RadarPromo，在商品页显示跨店更低价、90天最低价和12个月价格历史。他在黑五前比对了约2万个"划线原价"，发现65.8%在该店追踪期内从未真实成交，证明"假折扣"是真实痛点。但目前产品完全免费、无广告、无账号，且Keepa/Honey/CamelCamelCamel等免费竞品已成熟，付费意愿与竞争空间都偏低。