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I built two free Android apps with my AI assistant: an offline hazmat ERG lookup and a before/after photo app for contractors (looking for testers)

Hi all. I've been building two small Android apps lately and could use real-world testers. Both are free, no accounts, no ads, and I'm a mechanic by day, not a pro dev: I built these with my AI assistant. 1. Hazmat ERG Lookup - an offline hazmat guide for truckers and first responders. Enter a UN number or search by name and you get the ERG 2024 guide page, placard class and emergency info, even with zero signal. It asks for zero permissions and has a practice quiz mode with a 116-questio

五维评分

付费意愿
30
需求真实度
35
个人可落地
88
竞争空间
30
新鲜度
40

AI 分析

痛点:承包商需要按工地拍摄前后对比照片,作为完工证明并方便发给客户;卡车司机和急救人员需要在无信号环境下秒查 ERG 危险品 UN 编号。

目标用户:独立承包商、小施工或维修队(JobProof);长途卡车司机、急救和消防人员(Hazmat ERG)。

证据:Both are free, no accounts, no ads... for contractors: capture before and after photos for each job, add notes, lock it with a PIN, and share everything by text or email from your phone... I could use real-world testers... tell me what worked and what didn't

变现:ERG 查询永久免费,用来获客;JobProof 采用订阅或一次性买断(例如 $5-8/月或 $39 买断),解锁云端备份、生成 PDF 报告、多设备同步、团队共享。

MVP:2 周内做一个 Android 优先、离线可用的应用:按工地建档 → 拍前后对比照并加水印时间地点 → 备注 → 一键生成 PDF 或图片包,通过短信或邮件分享;可选 Google Drive 备份。先做 10 个承包商的付费意愿访谈,再决定是否上架 Google Play。

竞品:CompanyCam、PHMSA ERG 官方 App、ERG Guide 类第三方 App、Timestamp Camera、PhotoProof

摘要:一名白天做机修的独立开发者用 AI 助手做了两款免费、无账号无广告的 Android 应用:离线 ERG 2024 危险品查询(含 116 题练习模式)和面向承包商的前后对比拍照工具 JobProof(照片加 PIN 锁、离线优先、零权限),目前仅通过 APK 侧载寻找真实测试者。帖子没有任何付费或收入数据,但承包商拍照存证是 CompanyCam 已验证的付费市场,JobProof 的离线加隐私定位有差异化空间。