a few weeks ago, I was seriously considering moving on from this saas I had one customer paying $49/month, and they barely used the product and my monthly expenses looked like this: $200 on Google Ads $50 on AI $40 on scraping tools $25 on hosting a few other smaller expenses I was spending more than $315 every month to make $49 because I have a full-time job, I could afford to continue. but that almost made the decision harder there was no natural point
痛点：独立SaaS开发者每月获客和工具支出高于MRR，却缺乏判断该继续投入还是停掉的清晰盈亏信号。
目标用户：全职工作之余做SaaS的独立开发者/早期独立黑客
证据：I was spending more than $315 every month to make $49; there was no natural point forcing me to stop, so I couldn’t tell whether I was giving the product enough time or simply funding something the market didn’t want; it’s the first time the recurring revenue has covered the monthly tools and acquisition costs
变现：按月订阅的SaaS利润与Runway看板，免费版连接1个Stripe+手动记账，付费版$9-29/月支持多产品、广告支出同步、盈亏平衡提醒和关停/加注建议。
MVP：2周内做：连接Stripe API读MRR/订阅数，手动或CSV导入Google Ads/AI/托管等月度开支，计算净MRR、毛利、回本周期，生成“继续/优化/关停”信号和邮件周报。
竞品：Baremetrics、ProfitWell、ChartMogul、Stripe Dashboard、TrustMRR、Google Sheets/Notion模板
摘要：一位SaaS独立开发者从只有1个$49/月客户、每月支出超$315，增长到10个订阅、$430 MRR。核心痛点是早期SaaS支出与收入不透明，难以判断该继续投入还是停掉；对独立开发者可做轻量盈亏追踪工具，但竞品多，付费意愿需验证。