GTM Sauce

Pep AI · B2C · peptide tracking app

Read every review of rival apps, then have Claude plan your app

Founder says it gave a better app than existing ones; no numbers

Workedfeature-developmentvalidation

What they did

Went through every review of every existing peptide app, noting what people like, dislike and wish the app had. Fed that into Claude (or ChatGPT) to come up with the app concept and had Claude run research searches so the content (peptide library, PubMed sources) was actually useful.

What happened

Built what he calls the best version of existing apps
Stage
build

In their words

I Built A $30K/Month in 35 Days

Play from 5:57

Pat Walls… That's not that hard, didn't take that long. I think one of the most important things for a lot of people watching this channel is how to find the right idea, and I think that your app is the perfect example of finding a great niche, a great idea, a growing trend. So let's talk about that. How did you actually find this idea? How did you validate and how did you know and have confidence that this is something that can make $50,000 in 7 weeks?

5:57

Cedric RobergeHow it started is one of my roommates came up to me and was like, "We should take peptides." And I had no idea what he was talking about. Like a week later, I get a TikTok on my For You page about peptides, and so, you know, started looking them up and found that they're huge on social media. There wasn't an actual peptide app out there to like really explain what all these peptides do and how to use them safely. And there were a couple that have been out for a couple years, but none of them were successfully yet. That's when I realized that there was like an opening there. So then I went through every single existing app, looked through all the reviews of the things like: What do people like? What do they not like? What do they wish they had? And then from there, I just built the best version and had Claude do a bunch of searches so that we could build something that would be actually useful for people when they want to take peptides or just learn about them.

6:38

Pat WallsI think there's a couple interesting points you had there, which is like there was like a couple of signals, which is your friend told you about it, then you saw it in TikTok, and then you had genuine interest in it as well. Those are like three things that I think are really important. If anyone's watching this, what would be your advice to them on like how to identify like an idea like this? Tell me a little bit more about that.

8:08

Pat WallsBuilding on a growing trend, let's dive a little bit deeper into that. If you were to start over right now, peptides have already reached the top of their trend curve and you have to find a new idea, what would be your step-by-step, if you're starting over in middle of 2026, finding a new trend and building an app? What would be your process?

Cedric Roberge… probably going to be something that you can turn into a tool that people would use. Step two is to investigate whether these apps already exist in the space. And if they do, I think it's actually a good thing because it kind of validates that this is something that people want. If there is zero apps, it's still 100% can be popular and done well. But I think if there are a couple apps, that's a good sign because they've people have built it, people want it. Just no one's really marketed it like successfully yet. Next step is what I would do is look for these other apps and come up with ideas off of it. I would literally go through every single review on all these apps, like I said before. Find what people like, what they don't like, what they wish the app had, and then take all that and give it to Claude or ChatGPT and have them come up with your app idea, so that you have at least a foundation of what you want to build.

9:32

Pat WallsThis is genius. I actually just talked to a founder who completely rebranded their entire app based on past, they took all their reviews, they took all their cancellation reasons in Stripe, they took all their support requests, they pumped it into Claude, and they completely rebranded their app, and then after the rebrand, they grew like 350% or something like that. So go on and look at the existing, even if you have competitors, go take their …

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Tags: app-store, competitor-reviews, ai-research