Hitting $10k MRR in six weeks with an AI design tool

Mattia Pomelli found the intersection of what he loves and what makes money, and he started building. Then, he found an underserved and exploding market and built Sleek in three weeks.

Within two months, hit hit $10k MRR.

Here's Mattia on how he did it. 👇

The intersection of what he loves

I've been coding for about 8 years and have always had a passion for design. Eventually, I realized that building design tools is the perfect intersection of what I love doing.

In the past year, I've built four design tools with two friends. The last one we launched — and our main focus right now — is Sleek.design, an AI tool for designing mobile apps.

More and more people are getting into building mobile apps and good design is really important, but there are fewer coding/design tools in this space compared to the web. So we saw a great opportunity to take the knowledge we had from building design tools and create a product specific to mobile.

It's used by app founders or developers who don't have design skills or the time/resources to hire someone to do it. With Sleek, you can move fast and "vibe design" a beautiful app just by chatting with AI.

Within a month of launch, we reached $10k MRR without spending a single dollar on marketing. We're super excited to scale up from here!

Reusing code

Luckily, we were not starting from zero — we had built other design tools before. So, it only took us about three weeks to repurpose one of our previous products for mobile design and launch v1.0.

We're using Next.js as the main framework, Supabase for the database/backend, Vercel for hosting, Posthog for analytics (freaking love Posthog), Stripe for payments, and Resend for emails.

Sleek homepage

Organic growth

We launched Sleek about a month and a half ago. We made a post on X with a strong hook, a nice demo, and asked people to comment for early access. We planned this on purpose because the X algo loves comments. Valuable content + strong engagement = high chance of going viral.

The post blew up. A lot of people resonated with the problem and wanted to try Sleek.

The launch gave us a great initial boost, but it was just the beginning. We kept riding the momentum, putting content out there consistently on platforms like X and Reddit.

I post content about mobile app design daily. The key is not promoting your product directly, but rather, making content that is genuinely valuable/interesting for people and indirectly links to your product. For example, I made a post where I asked people to comment on their mobile app idea, and I designed it for them using Sleek. They get an initial design for free, and if they want to make edits and iterate on it, they can use Sleek. Or I just share cool designs made with AI (without even mentioning Sleek), and people will get curious and ask what tool I used to make them.

Some Instagram creators made videos about Sleek for free too, just because they thought it was valuable to their audience. Some of those videos went pretty well.

Find your ICP

We struggled for a while to find the ideal customer profile for our other tools. We made the classic mistake of building a product without thinking from the very beginning about who exactly would benefit the most from it. We ended up with different kinds of people using our product: indie hackers, small startups, designers, agencies, product managers... The product was okay for a bunch of them, but not specifically tailored to any.

This makes it hard to know which features to prioritize, how to talk about your product, where and how to market, etc.

With Sleek, we did things differently. Whose a much more specific use case and ICP from the beginning. This helped us to tailor the messaging, features, and marketing to match our target customers.

Limit your free tiers

We charge a monthly/yearly subscription and have different plans that come with different amounts of AI credits to spend.

We kept the free tier super limited since we have significant AI costs — being bootstrapped, you can't afford to have a high cost for free users. On Sleek, users can run one generation for free and then they'll be asked to upgrade to make edits or create more designs.

This might be a dealbreaker for some users, but I think it helps to raise the quality of our customers. People who have truly experienced the problem and understand the value will happily pay $25 to give the product a try for one month and see if it's a good fit. Because it can save them hundreds or thousands of dollars.

That said, we had some viral videos from Indonesian and African creators and had a lot of traffic from these countries. Since the purchasing power is different, we experimented with a cheaper and more limited tier for these countries, and that helped us get some extra revenue that otherwise would probably have been lost.

The drivers that motivate people to buy

Here's my advice: Focus on strong problems in growing markets.

I see too many people building "nice-to-have" products and, unfortunately, those are really hard to sell. Ideally, you want to save people a lot of money or a lot of time. Or even better, help them make more money. These are the drivers that motivate people to buy.

Market and timing are super important, too. We focused on mobile apps because the market is exploding. In the past year, a ton of people have been getting into building mobile apps — even people with zero coding knowledge. When you realize there is a trend, you can either ride it or help others ride it.

We chose the latter with Sleek.

What's next?

So far, we've been growing mainly through organic content and without spending a dollar. Now, the goal is to reinvest our revenue into marketing. We plan to test a bunch of different channels (e.g., SEO, creators, organic short form, etc.) to find what works best for us.

We're also working on improving our product. We shipped super early, so there is obviously a lot that can be better. Luckily, we had a ton of feedback from customers and know exactly where we need to put our effort.

You can check out Sleek or follow me on X to stay up to date!

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About the Author

Photo of James Fleischmann James Fleischmann

I've been writing for Indie Hackers for the better part of a decade. In that time, I've interviewed hundreds of startup founders about their wins, losses, and lessons. I'm also the cofounder of dbrief (AI interview assistant) and LoomFlows (customer feedback via Loom). And I write two newsletters: SaaS Watch (micro-SaaS acquisition opportunities) and Ancient Beat (archaeo/anthro news).

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  1. 3

    Thanks for the great breakdown! Marketing is still the area I'm least familiar with, but I'm trying to fill that gap. For your initial launch, how much of an audience did you already have on your X account -- do you think that was an important factor in your post blowing up?

    1. 2

      I had ~8k followers when we launched. Having an audience on X does help, but only if your customers are on X. I see so many people thinking that "building in public" is marketing. It's helpful for your personal brand sure, but if your customers are not on X, that's not gonna help you get clients.

      And even if some of your customers are on X, it should never be your only/main marketing channel in my opinion :)

      By the way, follower count is not as important anymore, you can get good reach even without many followers nowadays.

      Hope this helps!

  2. 2

    From a Funnelsflex perspective, the $10k MRR in six weeks isn’t really about “AI design” as a feature — it’s about execution speed and funnel compression.

    Building in three weeks forces real market validation instead of assumptions. In fast-moving categories, that short feedback loop is what unlocks growth early. You learn what converts before spending months perfecting the product.

    What also works here is how clear the value is at the top of the funnel. Users immediately understand the outcome, which lowers cognitive load and shortens the path from first touch to paid. When onboarding aligns with that clarity, conversion velocity increases fast.

    An underserved market with rising demand doesn’t need heavy persuasion — it needs precise positioning. This is a solid example of focusing on distribution mechanics and user intent, not just the tech itself.

    Execution over hype still wins.

  3. 2

    This is a solid breakdown, and the part that really stands out isn’t the $10k MRR—it’s how intentional the distribution and positioning were from day one.

    A few things here align perfectly with what I see work best on Reddit and other conversation-first platforms:

    1. Organic growth done the right way

    The approach of leading with value (designing people’s ideas, sharing outputs without pitching the tool) is exactly why this worked. On Reddit especially, products don’t grow because of “marketing”—they grow because they become part of an existing conversation. When users ask “what tool did you use?” instead of being told, you’ve already won.

    2. ICP clarity = distribution clarity

    Nailing the ICP early is underrated. On Reddit, this is critical because each subreddit has a very specific mindset. Indie hackers, solo devs, mobile founders, and no-code builders all respond to different angles. Because Sleek focused tightly on mobile app builders without design skills, it becomes much easier to choose the right subreddits, the right framing, and the right type of posts.

    3. Limiting the free tier actually helps community trust

    This is something many founders get wrong. On Reddit, overly generous free tiers often attract the wrong users—people who don’t actually have the problem. A limited free tier filters for serious builders, which usually leads to better feedback, higher-quality discussions, and fewer “this should be free” comments.

    4. Timing + trend awareness

    The mobile app boom + AI design is a strong tailwind. What worked well here is not trying to convince people they need AI design, but helping them move faster within a trend they already believe in. That’s a much easier sell in community-driven spaces.

    If there’s one thing I’d double down on next (especially on Reddit), it’s systematizing feedback loops:

    Track which posts spark questions vs. skepticism

    Reuse high-performing comment threads as future post angles

    Let community language directly shape landing page copy

    I work specifically in Reddit marketing and community management for early-stage SaaS, and stories like this are a textbook example of why Reddit works when it’s treated as a feedback engine not an ad channel.

    Really well executed, and congrats to Mattia and the team on the traction so far 👏

    1. 1

      Thanks!

  4. 1

    This resonated a lot. I’ve been coding for years and only recently leaned into the overlap between what I enjoy and what people actually struggle with.

    Once you stop forcing ideas and build around something you already understand, everything speeds up , decisions, shipping, even marketing.

  5. 1

    This is a really great breakdown, thanks for sharing it.

    I’m in the early stages of launching my own SaaS right now and the part about narrowing your ICP and being intentional with the free tier really hit. It’s already obvious how easy it is to drift into “kind of useful for everyone” instead of being very specific for someone.

    One thing I’m actively debating is how to set the free tier limits. I don’t want to make it so generous that people live there forever, but I also don’t want it to feel too restrictive and scare off the wrong people early.

    If you were starting from zero again today, how would you decide:

    • what goes into free vs paid

    • and how conservative you’d be at the beginning so you don’t have to take things away later?

    Would love any advice from your early days.

  6. 1

    The organic growth section felt very real. ~

    I’ve seen the same thing: a few high-signal posts can outperform weeks of “consistent” content if they hit the right problem at the right moment.

    How did you decide what not to post while you were experimenting?

  7. 1

    Love the launch strategy showing a clear pain point resonating well with users!

  8. 1

    As a start up how do you go about getting customers to sign up? where do you market and advertise?

  9. 1

    Perfect example of ship fast + clear ICP + ride organic. Reusing code + limiting the free tier is smart, especially with AI costs.

    Same playbook works in underserved niches too such as AI home health software is wide open for tools that actually save agencies time and stress.