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One year of our side project: two devs, no ads

Our water tracker app, Waltermelon, has been on the stores for a year now. Two of us, both with full time dev jobs, working on it in the evenings, usually until midnight. Real numbers: $391 MRR, 254 active subscriptions, about 17K users so far (roughly 11K on Android, 5.5K on iOS), 4.7 on Google Play and 4.8 on the App Store. All organic, apart from a few hundred dollars of test ads early on that didn't pay off. We're not vibe coders, we've been building apps for clients for

五维评分

付费意愿
70
需求真实度
75
个人可落地
85
竞争空间
25
新鲜度
20

AI 分析

痛点:喝水追踪这类习惯小工具有真实付费需求,但独立开发者最难的是获客与发现;ASO、榜单和 TikTok 效果有限,熟人邀请转化最好。

目标用户:关注健康习惯、愿意为无广告、提醒和小组互动付费的 iOS/Android 用户,以及做习惯类独立应用的开发者。

证据:Real numbers: $391 MRR, 254 active subscriptions, about 17K users so far... the hardest part isn't building, it's getting people to find the app at all... About a third of our paying US users came in small groups who invited each other

变现:订阅制:去广告、高级提醒、健康数据同步、小组挑战;也可延伸为独立开发者的应用发现与熟人裂变工具。

MVP:2 周内用 Flutter 做一个喝水追踪 MVP:本地提醒、桌面小组件、Apple Health/Google Fit 同步、简洁订阅墙;重点内置“邀请朋友组队挑战”分享链路,验证熟人裂变转化。

竞品:WaterMinder、Plant Nanny、Hydro Coach、My Water - Water Reminder

摘要:两名有全职工作的开发者用晚上时间做喝水追踪 App Waltermelon,一年做到 $391 MRR、254 个活跃订阅、约 1.7 万用户(Android 1.1 万、iOS 5500),评分 4.7/4.8,几乎全自然增长。他们试过 ASO、榜单投稿和 TikTok,效果有限,发现约三分之一美国付费用户来自熟人小团体互相邀请,最大难点是让用户发现 App。