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Shipped an iOS app, got 2 paying customers. Here's everything I did, and what I still can't explain.

I built WhoSpoke, an iPhone app that records a conversation and splits the transcript by speaker. Everything stays on the phone, no account needed. The build - I tested with clean sample audio and speaker separation looked great. Then I recorded a real meeting room and recognition fell apart. Room echo and distance are nothing like a clean sample. I mostly fixed it, but it was a good reminder that demo audio lies. Beyond the code - Made a character for the app and redesigned the app ico

五维评分

付费意愿
60
需求真实度
38
个人可落地
55
竞争空间
28
新鲜度
42

AI 分析

痛点:涉及敏感内容的对话(会议、访谈、咨询)需要按说话人分离的转写,但云端工具要上传录音、要账号,而本地模型在真实房间的混响和远场条件下识别效果会大幅下降。

目标用户:对隐私敏感的录音转写用户:律师、心理咨询师、记者、HR、医疗从业者及做访谈的一人公司。

证据:I built WhoSpoke, an iPhone app that records a conversation and splits the transcript by speaker. Everything stays on the phone, no account needed. / Result 2 people have paid for it. / I can't tell which of this (if any) led to those 2 purchases, or why they bought. No feedback, and the store doesn't tell me where a buyer came from.

变现:iOS 买断或按小时转写额度内购(本地免费额度 + 订阅解锁长录音/导出 Word/SRT);后续做企业版(团队模板、加密导出、合规声明)提高客单价。

MVP:用 WhisperKit 或 Apple Speech 做本地转写,再加上一个轻量说话人分离(基于能量与嵌入聚类)来解决远场混响问题:只做“导入录音 → 说话人分段转写 → 导出 SRT/Markdown”,不做实时录音与云同步,两周内可发布 TestFlight 版本。

竞品:Otter.ai、Granola、Apple 语音备忘录/Notes 转写、MacWhisper、VoiceInk、Aiko

摘要:独立开发者在 r/SideProject 发布 iPhone 应用 WhoSpoke,可在本地把对话录音按说话人分离转写、无需账号;但他靠 Threads 4 条帖子(13–33 次浏览)、TikTok/Instagram 短视频(最高约 120 次播放)和带追踪链接的落地页推广,最终只有 2 人付费,且 App Store 不给归因,他完全不知道这 2 个买家从哪来、为什么买。真实付费信号存在,但量级极小、赛道已被 Otter、Granola 和系统自带转写占据,只有把“完全本地 + 敏感场景合规”做成差异化才有一线空间。