I Built Two Apps That Make $120K/Month — Transcript
Full transcript
- 0:00Everyone wants to find the perfect app
- 0:02idea. So, you spend hours researching
- 0:04and scrolling YouTube for inspiration,
- 0:06only to come out of the other side with
- 0:09nothing. But, what if I told you there
- 0:11was a better way? Meet Kyle. He finds
- 0:14his app ideas hiding in plain sight, and
- 0:16today those apps make over $120,000
- 0:20a month. He doesn't chase trends or
- 0:22shiny objects. He just looks at his own
- 0:25hobbies, his own personal problems, and
- 0:27builds stuff for himself. I think this
- 0:30method is so cool that I asked Kyle to
- 0:32come onto the channel to break down
- 0:34exactly how he does it, and in this
- 0:36episode, we'll dive into his two apps
- 0:39that make over $1 million a year, why
- 0:41your next app idea might be sitting
- 0:43right in front of your face, and his
- 0:45playbook he would follow if he had to do
- 0:47it all over again in 2026. All right,
- 0:50this is one that you cannot miss. I'm
- 0:53Pat Walls, and this is Starter Story.
- 0:57All right. Kyle, welcome to the channel.
- 0:59Tell me about who you are, what you
- 1:00build, and what's your story.
- 1:02>> Yeah, my name is Kyle Fowler, and I
- 1:05built two apps that make $120K a month.
- 1:09I launched Card Stock 6 years ago, and
- 1:11we went from three guys in a basement
- 1:13making a few hundred bucks a month to
- 1:15five guys traveling all around the world
- 1:18making 1.5 mil a year. And today, I'm
- 1:21excited to share more about how I turned
- 1:23my hobbies and passions [music]
- 1:25into a career and how anyone could do
- 1:28the same thing.
- 1:29>> Okay, cool. Before we get into the two
- 1:31businesses that you built and more into
- 1:33that, I want to understand a little bit
- 1:34more about how these businesses work.
- 1:36And if you could potentially pull up
- 1:38some of your revenue dashboards, I want
- 1:39to show the audience watching here that
- 1:41this is legit. Could you pull up what
- 1:42you built?
- 1:43>> Yeah, of course. Card Stock is a sports
- 1:46card value scanner. So, if you have no
- 1:48idea what the value of your card is, you
- 1:51can [music] use your phone's camera to
- 1:53identify the card, find its value. You
- 1:57can your cards to your collection
- 1:59>> [music]
- 1:59>> and track their value over time and it
- 2:02really just helps uh collectors be able
- 2:05to find valuable cards in their
- 2:07collection and get what they're worth
- 2:09from them. CardStock is sitting at about
- 2:1215,000 [music] active subscriptions and
- 2:15up to like 75k
- 2:18monthly recurring revenue. We get about
- 2:20like 13,000 downloads a
- 2:23month. This is Scanemon. Basically the
- 2:25same app but for Pokémon cards. We
- 2:27launched it only a year ago but we've
- 2:30been doing pretty good with it. It's
- 2:32been slowly climbing. We're currently
- 2:34sitting at about like 3,400 active
- 2:36subscriptions, 17k monthly recurring
- 2:39revenue, about 16,000
- 2:42>> [music]
- 2:42>> new customers a month, which is actually
- 2:44more than CardStock, which is pretty
- 2:46impressive given how long CardStock's
- 2:48been around for.
- 2:49>> I think that's super cool. Let's talk
- 2:50about your background. How do you get to
- 2:52the point where you have two apps making
- 2:54over a million dollars a year?
- 2:55>> Yeah, it's been a long process. I
- 2:58definitely really always loved anything
- 3:01coding development-related when I was
- 3:03younger. My parents had me doing like
- 3:06coding camps type of things. Found my
- 3:08way into an iOS development course.
- 3:12Decided it was boring and was just going
- 3:13to try to make a game on my own. Making
- 3:16a little iOS game called Snake In. That
- 3:18was really fun. And then eventually
- 3:21found my way into trying to make
- 3:22CardStock. Trying to just like know that
- 3:25I have a problem and looking for the
- 3:27solution until I found it. And then it
- 3:29grew and grew from there. When I started
- 3:31CardStock, it was just me and I saw my
- 3:35friends were going to have to work
- 3:37stupid jobs at like Kohl's and a
- 3:39restaurant. So, I asked them if they
- 3:41wanted to come help and split the rev
- 3:43three ways even though there was
- 3:44basically no revenue and they didn't
- 3:46know how to code very much. So, I taught
- 3:48them how to do that. We spent like
- 3:51two or three years doing that together
- 3:53where I was, you know, taking 100%
- 3:55ownership but like helping them.
- 3:57>> Personally, I love Kyle's approach to
- 4:00building. It's proof that the best app
- 4:01ideas come from personal problems that
- 4:04you notice in your own life. But most
- 4:06people just scroll past these
- 4:08potentially great ideas every single day
- 4:10without realizing it. Well, this is
- 4:12exactly why we put together the
- 4:14million-dollar problems database. Inside
- 4:16this database, you will find 90-plus
- 4:18business ideas [music] that have real
- 4:20revenue numbers behind each one. The
- 4:22goal of this is to show you real painful
- 4:24problems and the solutions that solve
- 4:26them that are making over a million
- 4:28dollars a year. Your next app idea might
- 4:30be hiding right here in this database or
- 4:33it may give you some ideas on what
- 4:35painful problems are worth solving in
- 4:36your life. Nothing to lose by
- 4:38downloading that link right now
- 4:39>> [music]
- 4:39>> and get some ideas. All right, let's go
- 4:41back to the episode. I think that's
- 4:43super cool, but what I want to dive into
- 4:44a little bit more is the actual build of
- 4:46these apps that you built. How did you
- 4:48actually go about building this and how
- 4:49did you turn it into something that
- 4:50millions of people have used?
- 4:52>> So, Cardstock is built using
- 4:55Swift and SwiftUI and it uses Core Data
- 4:59for the storage of stuff. I built it
- 5:02just mostly with Stack Overflow.
- 5:05Eventually, we built out into adding
- 5:07like third-party SDKs like RevenueCat
- 5:09for subscriptions. When I did get there,
- 5:12I needed a back-end server for the card
- 5:15database. So, I did that on AWS EC2
- 5:18server.
- 5:18>> Walk me through like the actual like
- 5:20timeline of that. Like how long did it
- 5:22take to get to the place where someone
- 5:24actually paid money?
- 5:25>> I started building in winter of 2019
- 5:31and so then I finished it and gave a
- 5:33Reddit update post about having
- 5:35completed it. And then so I got my first
- 5:37downloads pretty quick immediately. I'd
- 5:40say all in all probably like six months
- 5:42from idea to completion with like a
- 5:45three-month gap in the middle. When I
- 5:47built Scanemon, it was really different
- 5:49from Cardstock cuz I built Scanemon last
- 5:51year in 2025. I tried to generate it,
- 5:55basically have Cursors agent generate
- 5:57everything, and it did insanely well.
- 6:01The MVP for Scanemon I made in a day.
- 6:04>> That takes me to my next topic here.
- 6:06What's like the full tech stack of your
- 6:07two apps?
- 6:08>> The main things we use are Codex, so
- 6:10like via ChatGPT subscriptions, Notion,
- 6:14Cursor, Slack, Framer for our website,
- 6:17Claude, mainly for co-work for me,
- 6:19Supabase, Railway, Code Rabbit,
- 6:23WhisperFlow, Granola, a lot of things.
- 6:25>> Cool. All right, well, thanks for
- 6:26sharing your tech stack. One reason why
- 6:28I wanted to bring you on the channel is
- 6:30that you built like these really cool
- 6:31businesses from your hobbies. Can you
- 6:32tell me more about how you came up with
- 6:34the idea, validated it, and, you know,
- 6:36were confident enough that this could be
- 6:38a business idea that could make a lot of
- 6:39money?
- 6:40>> The way I thought about it originally is
- 6:42I've been collecting cards since I was a
- 6:43kid. I was just like, I want to catalog
- 6:47my cards, and I want to sort them, and I
- 6:49realized I would have no way to know
- 6:52what card was which if I couldn't
- 6:54physically be with my collection, no
- 6:56matter how well I sorted them. And that
- 6:58got me thinking of like, oh, okay, well,
- 7:01I'm [music]
- 7:01sure I could digitize this and put it on
- 7:03my phone. There's got to be an app for
- 7:05that. And so I went on the App Store,
- 7:07and there was no app for it. So, I was
- 7:10like, well, I want to build one. I've
- 7:12just always wanted to work for myself
- 7:14doing something I love, and what better
- 7:16way than solving your own problems to do
- 7:18that.
- 7:19>> So, even though you have a couple really
- 7:21successful apps under your belt, you
- 7:23still can't guarantee success. I think
- 7:25that's a good lesson for anyone watching
- 7:27this that you still have to go through
- 7:29all those learnings to figure out if
- 7:31this thing can actually work.
- 7:33>> Yeah, basically, regardless of whether
- 7:35you make money after doing all these
- 7:37steps and building your app, publishing
- 7:40it, trying to market it, if you can
- 7:42solve a problem for yourself, the odds
- 7:44are other people have that problem. Now,
- 7:46will they maybe pay for it? Like, I
- 7:48don't know. But, either way, you if you
- 7:50build an app for something you're
- 7:51passionate about and solve through a
- 7:53problem, you've won, no matter what, cuz
- 7:56you've solved your problem.
- 7:58>> Yeah. I want to dive a little bit more
- 8:00into that. Give me the step-by-step
- 8:01breakdown of like how you would find an
- 8:04app that could potentially make a
- 8:07million dollars a year.
- 8:08>> Step one is to find a problem or
- 8:11opportunity, create some sort of notes
- 8:14document or anything in your phone where
- 8:16you can write down ideas. If you don't
- 8:18have problems in your life that you
- 8:20realize you're doing some slow arduous
- 8:22task that's repetitive, you are not
- 8:25paying attention. Step two is to
- 8:27determine a solution. The version that
- 8:29solves the problem most minimally. Like,
- 8:32what's the quickest solution? Step
- 8:34three,
- 8:35build it. Most people, I think, have
- 8:37been overestimating how hard it is to
- 8:39build apps, and AI just makes them
- 8:40realize that it's actually easy. Once
- 8:42you have a build, you probably want to
- 8:45>> [music]
- 8:46>> monetize it, and the best way to do that
- 8:48is with something like Superwall or
- 8:51RevenueCat. I'm almost certain that the
- 8:53AI could just completely implement this
- 8:55on its own nowadays. The AIs can even
- 8:58drive your browser. I've been doing that
- 8:59a lot lately. And so, they can probably
- 9:02walk you through all the exact steps to
- 9:03get your Superwall paywall set up. And
- 9:06if not, there's wonderful people you can
- 9:08reach out to there probably happy to
- 9:10help you because you making any chance
- 9:12of money helps them make money. So, I'm
- 9:14sure their support lines would help, but
- 9:17it's really not that hard.
- 9:18>> Okay, so that's all on the build stuff,
- 9:20which I think is awesome. How would you
- 9:21think about marketing an app in 2026?
- 9:24What would be your kind of step-by-step
- 9:25there to figure that one out?
- 9:26>> [music]
- 9:26>> We've had so much success with TikTok
- 9:28slideshows. They're very simple, they're
- 9:30very repeatable. You come up with a
- 9:32format, you find out what converts, and
- 9:34[music]
- 9:35you find out what gets views, and you
- 9:36find the balance of those two things to
- 9:39drive downloads and it's very hard to
- 9:41attribute but if it's the only thing
- 9:42you're doing it's very easy to
- 9:43attribute. Use noise [music] it's a
- 9:45platform that allows you to distribute
- 9:48TikTok slideshows to creators.
- 9:50>> [music]
- 9:51>> They receive a template that they post
- 9:53and you pay for the amount of views they
- 9:56they get. [music] You can also start
- 9:58with just TikToks on your own account or
- 10:00making a few accounts and [music] seeing
- 10:02if they get enough views and validate it
- 10:04that way. And especially if you have
- 10:06more time to burn that's a pretty good
- 10:08way to validate it.
- 10:09>> Let's switch topics a little bit and
- 10:11show off your app. Show me how it works.
- 10:12I'd love to just see like what you built
- 10:14and you could do a quick demo for us.
- 10:16>> Okay, so you can see when you
- 10:19load the app you get a vision of
- 10:21>> [music]
- 10:21>> your scan, the card it matched, and
- 10:24it'll show you the market value, all the
- 10:25info. You can click on the market value
- 10:28and see more info about the card along
- 10:31with the most recent [music] sales which
- 10:33is super important to collectors. And
- 10:35then if the [music]
- 10:37app didn't match for whatever reason you
- 10:39can go edit the info actually and
- 10:41[music]
- 10:43the try to like identify a card that
- 10:46like even wasn't [music]
- 10:47found at all. And then from there you
- 10:50can add it to your collection and see it
- 10:53within
- 10:54that part of the app and see all your
- 10:56cards together in the lists and with the
- 10:58values.
- 10:59>> Okay, cool. I mean that app is awesome.
- 11:01The last question that we ask all
- 11:03founders to come on Starter Story. What
- 11:04will be your advice to your younger self
- 11:06before you started building or for
- 11:08anyone watching this who wants to build
- 11:10stuff, make money, and build cool stuff?
- 11:13>> I think my best advice to myself in the
- 11:17past would definitely be that people are
- 11:21usually happy to help and share
- 11:22information. People who do something
- 11:25very successfully
- 11:27love to talk about how they were
- 11:28successful and how they did well. And
- 11:31don't worry about bothering people and
- 11:34they'll let you know if they're
- 11:35bothered.
- 11:36>> Well, that's great advice. It's the
- 11:37exact premise behind all of Starter
- 11:38Story. People like you don't have to
- 11:40come on and share how they built their
- 11:42app or how much money their app makes,
- 11:44but they do even though you don't stand
- 11:45to benefit a whole lot from it. You come
- 11:47on here and you share everything that
- 11:48worked and all of our other guests do
- 11:51the same. Thank you for coming on and
- 11:52sharing everything.
- 11:54Uh let us know in the comments if you're
- 11:55watching this if you made it to this
- 11:56point and what you think uh about these
- 12:00apps and everything that Kyle built.
- 12:02Thanks for coming on Kyle and sharing.
- 12:04>> Thank you.
- 12:05>> Gus from Starter Story, what did you
- 12:07think of Kyle and his two apps that are
- 12:10making over a million dollars a year?
- 12:11>> Yeah, I think I loved his vibe. You
- 12:14know, I think we talked to a lot of guys
- 12:16obviously and some of them are like
- 12:19really analytical or really like I don't
- 12:21know.
- 12:22I don't want to say anal, but like
- 12:24really like sort of anal about what
- 12:25they're building or how they're finding
- 12:27their ideas and Kyle was just like
- 12:30I like I like cards and I mean he it
- 12:32wasn't so simple as that. He was like,
- 12:33"I like these cards. This is fun for me.
- 12:35I'm having a good time and so that's
- 12:36what I want to do."
- 12:38And I just [music] loved that approach.
- 12:40It's so like I don't know.
- 12:42It feels so approachable, you know, like
- 12:44anyone can think of like, "What do I
- 12:45like? And let me see what I can build."
- 12:47And I like I like what he said about
- 12:48some of those things.
- 12:49>> [music]
- 12:49>> But yeah, that's kind of my first
- 12:51impression.
- 12:51>> Yeah.
- 12:52No, it's
- 12:54super spot on. A lot of people we talk
- 12:56to, what I notice and just in founders
- 12:58in general is like um there's a lot of
- 13:00anxiety and stuff like that and I think
- 13:03that's actually like a superpower for a
- 13:05lot of people who are builders, but this
- 13:07Kyle is like definitely the opposite of
- 13:09that, like super chill, just like, you
- 13:11know, like
- 13:12it's not that complicated. I just build
- 13:14this and I market it and that's that's
- 13:17what I really like about
- 13:19>> [music]
- 13:19>> like his approach is that like he
- 13:21doesn't overthink things, right? He just
- 13:23kind of says, "All right, this is this
- 13:24is what I'm doing."
- 13:25>> Yeah, I think that's why I love I wanted
- 13:27to bring him on is because it feels like
- 13:29something
- 13:31the way he talked about building and and
- 13:33stuff just feels like something really
- 13:34anyone can do and like like he said
- 13:36during the interview
- 13:39and he was just like yeah if you want to
- 13:40go learn it you can go learn it ask AI
- 13:42you know you can read read up on some
- 13:44blogs and you can go do it.
- 13:45>> Yeah, I mean building around your
- 13:47hobbies I feel like right now is just
- 13:49like one short window of time where
- 13:51building something around your hobbies
- 13:53can actually turn into a million dollar
- 13:54business like it's kind of hard to do
- 13:56some years ago and then in the future
- 13:58when everything's automated I don't know
- 14:00if it'll be possible but like AI has
- 14:02enabled you to
- 14:03have an like see a problem right now
- 14:06that you're experiencing in your daily
- 14:07life and ship it within a few hours and
- 14:09then test it in the market and I think
- 14:11that's like if you're watching this
- 14:13right now just try it just get started
- 14:15go through your day and write down a few
- 14:17problems as Kyle said and see if you can
- 14:19turn those into a real thing. If you're
- 14:21trying to do the same check out the
- 14:22description right now we have our
- 14:23database of one million dollar problems
- 14:26that are worth solving. If you can't
- 14:27think of any problems right now check
- 14:29that out you'll find a bunch of problems
- 14:31that are actually worth solving I would
- 14:32definitely recommend going down there
- 14:34and checking that out and downloading it
- 14:36for 100% for free.
- 14:37>> [music]
- 14:37>> All right guys thank you guys for
- 14:39watching let us know what you thought
- 14:40about this episode otherwise we'll see
- 14:42you in the next one. Peace.
About this transcript
This page contains the full transcript of I Built Two Apps That Make $120K/Month by Starter Story, generated from the public captions YouTube serves with the video. The transcript has 2,958 words across 438 segments, with the original timestamps preserved so you can click any line to jump to that moment in the embedded player.
What you can do with it
Use the transcript to take notes, quote the speaker, build a study guide, generate a summary with ChatGPT or Claude via the YouTube Summary tool, or export it as a timed subtitle file with YouTube to SRT. You can also re-open it in the transcriber to translate the transcript into 100+ languages.
Free YouTube transcript tool
YouTube2Text is a free YouTube transcript generator — no signup, no daily limit. Paste any YouTube link and get the full transcript instantly, with timestamps, click-to-jump, translation to 100+ languages, AI prompts for ChatGPT, Claude, and Gemini, and exports to TXT, SRT, VTT, or Markdown.