Peter Gillan (@StrongerAstro) header
Peter Gillan (@StrongerAstro) profile picture

Left McKinsey to build apps / Helped 1M+ people track workouts @ Stronger workout tracker

Track your workouts ⬇️
Joined May 2020
Peter Gillan retweeted
Talking apps and squaring up with my competitors @StrongerAstro @kyanbuilds @PKellermeier
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Peter Gillan retweeted
Having built a ‘Big app’ I can confidently say one thing - I’m not talented. I just iterate. In 2022, I remember being on a call with a guy and telling him about how I wanted to make a ‘fun’ workout tracker. I also told him that I would market it on tiktok. He told me I was silly, that the fitness space was saturated and that TikTok was just filled with kids Now it’s 2025, Stronger is crushing it and TikTok is the main organic acquisition channel for mobile apps 🤯
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Peter Gillan retweeted
Excited to launch WillBot, the first AI performance marketing agent that can actually WATCH your ads. Most AI marketing tools suck. They lock you into generic workflows, lack context, and rely on "industry" data. Built on Gemini 2.5 Pro and Claude 3.7, WillBot changes everything: 1. Syncs instantly with your ad platforms (Meta, TikTok, Google, etc.) 2. Watches your ads, analyzes performance, and generates actionable insights 3. Operates through natural language—just ask it anything, right from Slack It’s like having a media buyer, creative strategist, and data analyst available 24/7 in your pocket. With a single prompt, WillBot can: 🔎Analyze 1,000s of hooks, bodies, creators 📈 Generate detailed charts & performance reports 📝Craft unlimited high-converting scripts in any language 👀 Monitor ad accounts and notify you instantly about performance shifts We’ve already analyzed >$100M+ in ad spend with WillBot. To celebrate the launch, we’re sharing a FREE creative report including: - 50 proven hooks across industries - Optimal Meta & TikTok account structures - Access to our database of 1,000+ vetted creators Reply "WillBot" below and I'll send you the report!
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Peter Gillan retweeted
If you: - speak with your users weekly - have positive unit economics - use your own product regularly - sleep 8 hours per night - do 6 hours of deep work daily - personally handle sales or coding - have at least 10 users who admire your product you’re ahead of 97% of startup founders! Keep going, you are doing great.
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Peter Gillan retweeted
Cracked the code to going viral. 1b+ impressions, 148k followers, 355k shares—no ads Why you’re not growing: - Not controversial - Unclear POV - Looks like an ad - Trying to please everyone - Not shareable - Inconsistent narrative What does not matter: - Music - Captions - Hashtags How to win: - Be divisive, but authentic - Stay organic—no ads - Build human connection - Create your own category Keep creating, let’s break the algo
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Peter Gillan retweeted
2024 was about tech innovation. 2025 will be a return to fundamentals for building Al startups & products. Here are some I learned (the hard way) by building 2 products that reached 100M+ users, selling Anchor to Spotify, and investing in 60+ startups. TIME FOR A THREAD 👇
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Peter Gillan retweeted
the next mobile app billionaire will be made in 2025 og app days (2008-2015): - ship basic app - hit app store feature - become millionaire overnight dark ages (2015-2022): - facebook ate your money - app store turned into walmart - needed millions to compete - growth was pain abundance age (2025+): - new ai apis drop daily - tiktok = free real estate - users excited about ai apps - market wide open - fastest distribution ever why you should care: - build time? weeks not years - marketing cost? basically zero - no clear winners yet - timing? perfect storm the playbook: - one ai feature that is different - dead simple mobile app - ship in 30 days max - charge $12.99/month - post 2x a day tiktok/ig (multiple accounts) - find your viral format - rinse and repeat - scale till it hurts next 12 months: - copycats flood in - distribution separates winners - short-form video drives everything - early movers win big - mass adoption goes crazy 2008 gave us app store millionaires 2025 will give us ai app billionaires never been a better time than now to build
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Peter Gillan retweeted
An essay: Why founders fail, despite being good at coding and high IQ. Being mathematically smart hurts startup founders. Math doesn’t account for emotions, and this is why devs easily build useful products but fail to get to Product Market Fit in 99% cases. Imagine you’re building a building to sell. As a good builder, you put great effort into the materials, structure, architecture and make a great house. You host open day for the potential buyers, but a nasty cat drops a 💩 at the entrance. It smell shit. People come and the first thing they feel is the shit smell. It disturbs their perception and all those genius construction idea and great efforts aren’t important anymore. In products, emotions mean as much as the actual value the product delivers Devs tend to ignore it. The best example is the UX. It always feels like a decoration that’s not so important, as long as the features are in place and there is a way to benefit from the product for the user. However, some times, the size of the button, the label, or the sequence of the steps in a flow becomes a deal breaker. Every part of UX sparks certain emotions in users. Very often the simplest fixes bring the highest impact for the UX. And here comes another issue for a dev mind: the amount of effort never equals the amount of impact. The more mathematically intelligent you are, the more you get excited by hard tasks, where your IQ can shine. Any rational calculations often confirm this assumption too. It again, the emotions don’t work this way. So this is what makes tech startups so hard. One must build solutions to real problems, and at the same time, engineer the user emotions to basically manipulate user into feeling great while using the app. The “feeling great” comes when 1) user never has to think. Literally. Imagine the user using the product while driving a car or running. 2) user feels certain achievement and proud of themselves for the outcome. Ideally, user give the smallest input possible, and it makes high impact on the outcome. Versus the opposite: high effort and low impact. Another enemy of smart devs building products is their issue with prioritization. Bugs and big features always feel important. But the reality is that one must always do both. The hopeless hope that one day there will be no urgent tasks and I can finally spend time on UX and cosmetics is what kills so many good products. Every day, you need to find an hour for small things in the emotion roam. Like moving that button into navbar, because keeping it behind the menu is confusing. Or making the text size smaller for the sidebar. How to know what small tasks deserve attention? 1) Play user sessions (use posthog for it) 2) Turn on a podcast(about quantum physics), listen it with a good focus and try using your product as a user, while being very focused on listening the podcast. It’ll make you behave more like a user who is lazy and doesn’t know the app and spot the weaknesses.
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Peter Gillan retweeted
Attended an event about consumer apps growth, organised by @slay_app and @fabiankamberi. Wrote down some notes, enjoy! Fabian, Slay - Tracking is crucial, you should track every funnel step—this will save you a lot of time and resources later on. - Track when users take screenshots and put sharing buttons there to get the right momentum. - Acquisition is important, but retention is even more important. Optimise for activation. - For user acquisition: Use US sim cards and ghost accounts to post a few videos a day on TikTok. Use both UGC and simple videos you create. Benedict, Knowunity - Take limited time for new app iteration, a few weeks. - User acquisition: Get 200-300 creators for launch, post several videos per day, some will go viral and give initial boost. - Work on launch playbook, expand to other regions. - US market is different from EU, keep that in mind for launch. Johannes, Popcore - Each game takes 2 weeks to develop, never longer. - Ad-driven building: Start thinking about what ads will look like for that particular app idea. Building an app with that idea in mind, optimised to get great conversion in the ads. - Paying for user acquisition: spending a few thousand dollars on meta ads, studying what works: what audience and what's the traction. If the app idea works, it will be visible immediately. Mihai, @father_mihai - Take 2 weeks for development, 2 weeks for marketing. Never longer. - Research ideas, what people are looking for, what are the pain points. - Spend limited budget on TikTok ads to see what sticks. - If the app doesn't stick, kill the app and start over. Hendrik, Neotaste - Started building marketplace from smaller German regions, because the idea should work for usual cities and mass market. It would be easier to start from Berlin, but proving the idea in smaller cities gives a stronger signal. - The sales pitch for restaurants was very simple: no upfront costs, additional demand. Alessio, Jodel - User acquisition: Flyers + promoters worked best for them because they have a hyper-local network. They need high density. - 20% rule: If the density of app installs in a certain social group will reach 20%, it will go further. Thanks to everyone for sharing their insights + @fabiankamberi and team for organising 🇪🇺
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i've had 50M+ views in 2024 across clients. this brought in over half a million downloads, tens of thousands in revenue and a whole lot of learnings. 5 of my most valuable learnings: 1. the easier the content is to create, the better it will likely perform > it should feel authentic, not rehearsed 2. trends are helpful to get a viral video once or twice, but they aren't sustainable 3. the only way to achieve consistent growth is by failing - A LOT. in fact, most my videos don't hit, but the ones that do are all that count 4. most people watching your videos are sitting alone, in bed. they want to feel like they are talking to a friend. be that friend for them through the screen & you've got their trust, something more valuable than any ad campaign 5. similarly, respond to comments like you're these people's best friend & make sure to respond to ALL comments. creating community creates customers (and referrals!)
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the biggest thing behind going viral is getting trust. everything is an ad nowadays. how do you break through the noise and get 100s of thousands (millions?) of GenZ to trust you and try what you’re promoting? act like them. use their language, emojis & slang. never thought i’d say “bruh” or use the skull emoji but here i am. 1M views and thousands of downloads later
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Peter Gillan retweeted
Journaling is the ultimate tool for destroying limiting self-beliefs and reprogramming yourself for a better future Use it to build up positive patterns
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Peter Gillan retweeted
laziness + ambition = CEO these types find the path of least resistance to arrive at their desired outcome hard workers have a habit of thinking they can do everything themselves, this only works up until a certain point
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Peter Gillan retweeted
Almost all of our viral videos have hate comments underneath I remember when we had our first viral video; I was stressing about the negativity and debated just deleting the video Now after 1 billion+ views, I have a very different view on negative comments Your startup is sending a message, and if there isn't any opposition, then your product is likely so lukewarm and homogenous, that it won't go viral (or become successful) anyway The hate comments, the people who tag other people, the viewers who silently share to their friend group, the bots shilling their own products, the fans of jenni defending us, etc These things all bubble up into a frothy viral concoction I see so many people freak out or panic when the top comment is a negative comment But if your video has 100,000+ likes and the hate comment has a few hundred likes...clearly your product is resonating with way more people and this one person just can't handle the changing of the status quo Thank the negative commenters for their contribution to the viral recipe and continue to build an amazing product
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Peter Gillan retweeted
I love building apps - You can do it from anywhere 💻 - Your products can impact anyone globally 🌎 - There is no limit to how far you can scale 🚀
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When building viral social apps focus more on your user-replacement rate than retention People will churn but did their friends replace them?
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before we even launched, we already had 11k followers on TikTok. a strong pre-launch campaign is essential for building momentum, and it helped us achieve 10k users within the first week! 🙆🏻‍♀️🎉
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Peter Gillan retweeted
Currently on a small break in Madrid (still working evenings tho 📈). Was a nice treat having two of my teasers for Stronger V3 getting over 100k views🤩 Happy Monday! #buildinpublic
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