The library
What founders tried, what it cost, and what happened. Every number shown was disclosed by the founder.
27 experiments
Marc Lou · ShipFast
Marc Lou says he spent about $25K on Meta ads for ShipFast in 2024 and made $75K from it — and credits Nico Jeannen, who ran the campaign because Marc says he's bad at ads.
Marc Lou
Marc Lou remade the structure of a French Instagram ad for a Chinese restaurant, swapped in his own product, and ran it. It took 30 minutes to make, and he reports 54 sales, $10,000+ in revenue and a 4:1 return on ad spend.
Marc Lou
Marc Lou says he grew a B2B SaaS from zero to $80,000+ with cold email as the only channel and $0 spend: directory-sourced leads, a CRM, a template email, a sales call, and a short drip sequence.
Jack · PressDrop
Jack launched PressDrop.io with no followers by listing it on small .lol launch sites — the one that mattered was a $2 slot on bigbubble.lol, which brought a $59 sale within minutes. After a silent week where Product Hunt and Reddit did nothing, publicly doing the job for people restarted sales: $1,093 in 27 days.
Jack Friks · Lovelee
A year after his short-form playbook, Jack Friks tested a new format for his app Lovelee: a 200k-view video produced no download spike, while a different format showed a very noticeable spike after just 50k views.
Jack Friks
Jack Friks spends about an hour a day making and posting 6 short videos across warmed-up TikTok and Instagram accounts. He reports 30,000 downloads for his B2C app in a month, with no paid ads.
Jack Friks
Jack Friks had an agent find his best-performing X posts from the past year and repost them to other social platforms through his own scheduler, Postbridge. He reports free downloads for almost no effort and $0.
Jack Friks
On his new mobile app's first day on the App Store, promoted only on X, Jack Friks got 250 installs and 24 free-trial starts — a 9% install-to-trial rate — before doing any other marketing.
Jack Friks · Postbridge
Jack Friks scheduled 1,800 of his own posts through Postbridge — most repurposed from content he made two years earlier — and they reached 8 million views, with Facebook Reels almost a third of them.
Ilias Ism · GenPPT
Ilias Ism split $1,500 three ways for GenPPT, an AI presentation tool. $500 of Google Ads produced 1 trial signup; $500 of Meta ads, 2 purchases; $500 of content and backlinks, 5,000+ visitors a month — most of it from one $100 blog post.
Hasan Cagli · ElvixAI
Hasan Cagli launched ElvixAI, his second SaaS, and built in public on X every day. Nine days in: 30 paying customers, $299 revenue and 2,384 visitors. He reported $1.5k MRR at day 25.
Muhammad Haris Zafar · ColdCraft
Muhammad Haris Zafar pushed ColdCraft across 22 AI directories, about 15 listing sites and daily posts on nine social channels. In 23 days: 8 signups, 0 paying. Directories and social posts produced no traceable signups; community posts and one-on-one conversations produced all of them.