Findymail: $2,500 Monthly

Findymail is a high-quality email lookup tool with an automation flow designed to help B2B salespeople build prospect lists faster.

Put simply, it's just a bot that crawls email addresses from people you specify.

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The early growth came mainly from consistent posting on Twitter and sending DMs to other users. (We've also tried LinkedIn, Twitter ads, and paid campaigns, but those didn't move the needle.)

Chinese marketers building outreach-driven products face the same challenge. For example, they need to bulk-scrape contact details—WeChat IDs, phone numbers—for influencers on platforms like Douyin, Kuaishou, WeChat Official Accounts, and Xiaohongshu.