I'm in Philly and kept seeing small contractors get burned by an expired COI or license nobody noticed. So I built getdocudue.com. You add a license, policy, permit or cert with its expiration date and it emails you before it lapses. It's free for up to 5 docs and $12 a month for 50. Would love honest feedback on the signup and whether the reminders feel useful or annoying. submitted by /u/flxnwrxn [link] [comments]
痛点：小型承包商（水电、暖通、分包商）经常忘记执照、保险单（COI）、许可证的到期日，等到被发现时已经丢单、违约或被罚款。
目标用户：美国的小型承包商与分包商（电工、水管工、暖通、屋顶、装修队），以及给总包供货、需要持续证明保险有效的小团队。
证据："I'm in Philly and kept seeing small contractors get burned by an expired COI or license nobody noticed." / "It's free for up to 5 docs and $12 a month for 50."
变现：Freemium 订阅：免费 5 份文档，$12/月 50 份文档，往上叠加档位（$29/月不限文档、多用户、短信提醒）；后续可加 COI 向总包自动发送、合规档案导出等增值功能。
MVP：两周内做出：文档名+类型+到期日的录入表单、时区无关的每日 cron 扫描、到期前 30/14/3 天邮件提醒、Snooze 与续期一键顺延、Stripe 订阅与文档数量限额。用 Supabase + Resend + Vercel 即可，无需自建队列。
竞品：Expiration Reminder、Renewal Reminder、TrustLayer、MyCOI、Certificate Hero、Jones、Excel/Google Sheets 手动台账
摘要：作者在费城观察到小承包商因 COI 或执照悄悄过期而吃亏，于是做了 getdocudue.com：录入执照、保单、许可证的到期日，到期前自动发邮件提醒。定价为免费 5 份文档、$12/月 50 份文档，属于典型垂直小工具 SaaS，单人两周可复刻，但存在 Expiration Reminder、TrustLayer 等成熟竞品，且帖中尚无付费用户或他人附和的验证证据。