reddit · SideProject · 10-18 17:50 38 分 ← 返回列表

Title: I’m building an app that explains why your portfolio went up or down. Would you actually pay 18 per month for something like this?

I’ve been working on an iPhone app called Portfolio Preview, and I’m at the point where I need some outside opinions before I put more money into it. The idea came from checking my own investment portfolio and seeing that I was up or down a few hundred dollars without really understanding what was driving the change. The app breaks down how much each stock or ETF contributed to your daily gain or loss, then uses AI and financial news to explain what might have caused those movements. The ex

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：散户投资者只看到持仓当天涨跌了几百美元，却不知道是哪个股票或 ETF 造成的、为什么涨跌；现有投资 App 只给出结果，不给出归因和解释。

目标用户：自己动手管理股票/ETF 组合、但缺乏专业分析能力的英语市场散户投资者（iPhone 用户为主）

证据：“seeing that I was up or down a few hundred dollars without really understanding what was driving the change”；“I'm considering charging $18/month with a 3-day free trial”；“Would you realistically pay $18/month for it?”（这些是发帖人自己的假设，不是用户的付费陈述）

变现：按月订阅（$18/月，3 天免费试用）并配合年付折扣；免费版只展示归因数字，AI 解释、新闻溯源、券商自动同步和每日日报才需要付费；后续可增加券商开户返佣。

MVP：2 周内做出来：先不做券商直连，而是支持 CSV 或手动录入持仓，并每日拉取行情，算出每只标的对当日盈亏的贡献（权重与涨跌的乘积），再用 LLM 结合当日新闻生成带来源链接的通俗解释，最后通过邮件或推送发送每日“盈亏归因日报”，只给 5 到 10 个种子用户免费试用，以验证留存和付费意愿。

竞品：Sharesight、Kubera、Delta Investment Tracker、Ghostfolio、Simply Wall St、Yahoo Finance

摘要：独立开发者在 r/SideProject 为 iPhone 应用 Portfolio Preview 征求反馈：拆解每只股票或 ETF 对当日盈亏的贡献，并用 AI 和财经新闻做通俗解释；计划定价 $18/月、3 天免费试用。全帖没有任何付费用户、收入数据或他人附和，只是发帖人自问“你会付吗”，属于假设性需求验证；而且提到不想在无人需要的产品上白花“数千美元”，说明需求尚未被验证。