Founder Playbook · Sub Club by RevenueCat
10 tactics from Matthieu Rouif
Matthieu Rouif, PhotoRoom - Building, Refining, and Pricing a Top-Level App
Watch the full episode“i realized like okay they're just kind of you know i i say scam but it's not really scam but all these apps that are built quickly there must be some demand around it and so that's uh i started with the background remover idea”
Spot Demand From Bad Incumbents Then Ship an MVP in Two Weeks
Matthieu noticed the top photo apps in background-removal were low-quality cash-grabs — not signs of a dead market, but proof of unmet demand. He used 10 years of app development experience to ship a working prototype in two weeks with on-device ML. The insight: bad incumbents with real downloads validate the category far more reliably than surveys.
“we like every especially in the beginning every week we would go to mcdonald's and pay a meal to student or anyone and we would like pay the meal in exchange for downloading the app and yeah blindly test yeah”
McDonald's User Testing: Pay for a Meal, Watch a Stranger Use Your App Cold
PhotoRoom's early user research method: buy lunch for anyone at McDonald's in exchange for watching them download and use the app from scratch. They discovered users never reached the core magic moment (background removed) before dropping off. This directly drove the decision to surface the WOW effect within the first 3-4 taps of onboarding.
“we actually put forth first the monthly plan because we wanted people to churn and be able to talk to them so there was really a focus on learning from the approach”
Launch Monthly-Only First So Churn Teaches You Before Annual Locks People In
PhotoRoom deliberately launched with only a monthly subscription plan — not to maximise revenue, but to surface churned users quickly so the team could talk to them and understand why they left. Annual subscriptions are great for cash flow but terrible for learning: you wait 12 months before knowing if the product works. Monthly churn as a learning mechanism paid off early.
“as a product guy i'm really convinced that our usage is really deep like we're starting from a different lego brick like okay you don't edit mask or square pixels you edit like objects so i mean any app that kind of want to copy that has to stop doing what it does today”
Object-Oriented Editing Is the Defensible ML Moat — Competitors Must Rebuild From Scratch
PhotoRoom's core product paradigm — editing semantic objects (cat, clothing, product) rather than pixels or masks — required competitors to completely rearchitect their apps to replicate. This isn't a feature but a foundational approach enabled by on-device ML. The depth of the paradigm shift is what makes the moat: copying a feature is easy; copying a new software metaphor is not.
“in december 2019 we dropped the video just for animation and then we dropped kind of the casual use case to focus on the pro and if you reach local maxima from one vertical like product market fit then you're investing so much on the deck it gets better than the all the local maximas are adjacent like you can reach them after”
Drop Every Use Case That Isn't Your Best One — YC's Local Maxima Principle
PhotoRoom cut video features and casual use cases in late 2019 to go all-in on pro/e-commerce photo editing. The YC framing: once you've reached local PMF in one vertical, adjacent verticals become accessible — but you can't get there without first fully saturating the first peak. Founders who try to serve every use case simultaneously reach no peak at all.
“we got garyvee tweeting about us like a video from us so that was like a viral video demoing the app and we kind of in the thinking was if some videos of demoing photo room are viral it probably works also as ads”
If an Organic Demo Video Goes Viral, Use It Verbatim as a Paid Ad
GaryVee tweeted a PhotoRoom demo and it went viral organically. The insight: if a demo video earns organic attention without a budget, it will outperform polished ads because it already passed a real engagement test. They used those same viral clips as Facebook ad creatives and found them highly efficient — a cheap way to bootstrap paid UA with pre-validated creative.
“in september we got massive marketing from the using air key three i think apis so i think our early days was marketing through using the latest tech software and hardware from from apple”
Apple Markets Through Developers — Use Latest Tech APIs to Earn Free Distribution
PhotoRoom's launch strategy was to be the best example of Apple's latest technology — first ARKit, then Metal, then Core ML. Apple's marketing machine runs on developer showcase stories, so integrating cutting-edge APIs (and doing it well) is a legitimate channel to earn editorial placement, featured slots, and App Store partnership. It cost nothing but engineering time.
“the reason we launched after two weeks with revenue cat was like the feedback from pros is so much more valuable than the feedback from free users”
Paying Users Give 10x Better Feedback Than Free Users — Add a Paywall Early
PhotoRoom added a paid subscription within two weeks of launch — not primarily for revenue, but because paying users are the only ones whose feedback is worth acting on. Free users have low stakes and low engagement; pro users who pay monthly have real jobs to be done and give actionable, specific feedback. The paywall is as much a research filter as it is a monetization mechanism.
“it was a good time to test marketing and we kind of fastened that at that point because there was the covered the beginning of the covey then all marketing was going down so it was super cheap to try stuff there yeah so try to be opportunistic on that an influencer had like a lot of time”
COVID Made Ads Cheap and Influencers Available — Run Tests When the Market Gives You a Window
PhotoRoom timed its first paid advertising push to coincide with COVID lockdowns — when CPMs crashed and influencers had idle time. The lesson isn't to wait for a crisis, but to recognise market windows: abnormally cheap ad inventory or uniquely accessible talent are finite opportunities. Being ready to run when conditions improve is a strategic asset.
“one user told us like oh my girlfriend would love that she's selling on depop and after multiple users asking us in support talking at the user interview at mcdonald we realized that oh that's a niche that we should kind of focus on”
E-Commerce Niche Wasn't Planned — It Emerged From Support Tickets and McDonald's Interviews
PhotoRoom's defining market positioning — the best photo editor for entrepreneurs selling on Depop, Poshmark, and Shopify — was not a strategic decision made in advance. It emerged from repeated signals in customer support tickets and McDonald's user interviews. The team noticed the pattern, validated it, then deliberately doubled down. Niche clarity often comes after launch, not before.