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Got tired of guessing shoe sizes online, so I built a tool that calculates sizing from shoes you already own

Shoe sizing is broken across brands, but it's even worse across models: two different Nikes don't agree with each other either. Knowing an Air Force 1 "runs wide" tells you nothing about how a Dunk Low, a Samba, or a New Balance 550 will actually fit your specific foot. Instead of relying on static manufacturer charts, I built a lightweight tool that calculates sizes backward from actual shoes: https://shoe-fit.com (No sign-up, free) You punch in 1–3 shoes you alread

五维评分

付费意愿
25
需求真实度
60
个人可落地
90
竞争空间
40
新鲜度
55

AI 分析

痛点:不同品牌甚至同品牌不同鞋款的尺码不一致,用户在线买鞋时难以根据已有鞋款推断新鞋该买多大。

目标用户:经常在线购买运动鞋/潮鞋、对尺码不确定的消费者,尤其是跨品牌买鞋的用户。

证据:Shoe sizing is broken across brands, but it's even worse across models: two different Nikes don't agree with each other either. Knowing an Air Force 1 "runs wide" tells you nothing about how a Dunk Low, a Samba, or a New Balance 550 will actually fit your specific foot.

变现:联盟营销佣金(跳转 Nike/Adidas/New Balance 等电商成交后抽成)、高级尺码档案/无限查询订阅、面向 DTC 鞋品牌的尺码推荐 API 或白标插件。

MVP:2周内做一个浏览器扩展+移动网页:用户输入1-3双已有鞋款及穿着感受,在 Nike/Adidas/New Balance 等商品页直接显示推荐尺码,并嵌入联盟购买链接;先覆盖20-30个热门鞋款,用真实用户反馈迭代偏移数据。

竞品:Fit Analytics、True Fit、Nike Fit、Zalando Size Assistant、Shoefitr(已关闭)、Reddit/YouTube 尺码测评内容

摘要:作者因在线买鞋尺码不准,做了一个免费免注册工具,通过用户已有鞋款反推目标鞋款尺码。痛点真实且独立开发者可快速实现,但原帖没有付费意愿或收入证据,且已有 Fit Analytics、Nike Fit 等竞品,变现需靠联盟佣金或 B2B API。