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- I had an idea in 2008 to make a website that emailed your friends when you die. I built https://www.deadmansswitch.net/ in a weekend, and it's been making money since. Around $1k/mo now.by stavros
- I'm building Book DNA to help people get book recommendations from humans (mostly authors and experts so far in our early days).
We started with the website, and now we are building a full app: a private, personal way to track your reading and get personalized recommendations based on your tastes.
-> https://building.bookdna.com/
We are aiming for a soft launch in a few months :)
If you want to be an early user and give us feedback, sign up here, and I'll get you going with the early version. We are adding imports from Goodreads now, and user folders to organize books how your brain works.
-> https://docs.google.com/forms/d/e/1FAIpQLSeOdeqpZCS95FMRy_tE...
by bwb - Pretty basic ones, I got into AI images cause of that viral AI avatars thing that levelsio made 2-3 years back and have just been iterating on that idea(even though I think if I went into the AI text side of things, I'd have been much bigger at this point):
https://admakeai.com - Recently got this to 800 MRR , kinda trying to make it the main thing since the LTV on it is the highest. So if I could just figure out ads, this has the highest potential
https://aieasypic.com - First project that I made that made money from subs vs making money from ads, whole reason I continued to indiehack. Its kinda dying but core users still bring in 3-4k/mo , altho actual MRR is 1k/mo
https://bestphoto.ai - Made this after I got frustrated from the bad decisions I made on above, basically a tech rewrite + clone + simplification of aieasypic. Currently makes the most but at a lower margin than aieasypic. Not gonna say exact numbers, but lets say 5k+/mo
by mesmertech - I run Akariq [0] which sells travel eSIMs in 190+ countries and regions in the world. It does not require an app or account. Customers like it for ease of use. Many HN users have bought eSIMs including countries like China, Japan, Australia and USA. I have overall received positive feedback.
Recently, I have a few Digital Nomads in Europe switching over from Nomad to me due to very good pricing [1]. A lot of customers have also come over from Airalo due to customer service. For example, recently major eSIM providers had a huge incident and left customers stranded for Internet. Akariq had backup resources and replacement eSIMs during those upstream telecom providers issues. I even wrote an Incident Report here [2].
Customer satisfaction remains my highest priority these days.
[1] https://akariq.com/en/esim/region/europe-31-areas/
[2] https://akariq.com/en/blog/akariq-backup-esim-service-interr...
by helloakariq - The world is changed - given the low cost of reverse engineering and implementation, it would be product suicide to openly call out a money making product.
I don't expect too many actual >500$ moneymaking projects to be listed. Would love to be proven wrong.
by unified101 - Two weeks ago, I released the tactical map-based WW2 submarine sim Silent Shark (which I got feedback on from HN for beta test a few months ago https://news.ycombinator.com/item?id=48180924 ) and it's gone extremely well for a side project - I've had over 100 Steam reviews, 99% of them are positive, and I have sold a few thousand copies so far.
I began working on this game just 6 months ago and have only worked on it in my spare time in evenings and on weekends, instead of playing computer games. I made the early decision to use Codex for 100% of the coding, that has been a phenomenal experience.
The only Image Gen AI I've used has been to clean up 2 old and weathered historical maps I found, to make them readable.
Still have over 25,000 Steam wishlists and growing. I'm super thankful and having a blast.
by epaga - A friend and I host a monthly dinner club for people interested in exploring ethnic cuisine on Long Island. We work with one restaurant each month to create an 8-12+ course all inclusive price fixe menu. The food is usually served family style (the ambitious ones individually plate everything) and is authentic to the region we are hosting. We typically host the dinners on a Tues and Wed when the restaurants in our region aren’t too busy and could use business.
We started this in 2023 with 13 of our friends as guests. Since then the group has grown to over 1,200 members and well beyond our circle of friends. August was our 52 second restaurant. In 2025 we served 1,099 guests and generated $126k in revenue.
by agotterer - My work came up with a bonus structure around a certain set of industry certifications. I looked at all the certifications available and worked out a strategy to max the bonus each year. It comes out to about $2.5k/month.
So my side hustle is studying and taking tests. Over the last 5 years or so of taking tests + investing I’ve built a nice chunk of change set aside to help pay for college for my two boys (age 14 and 16).
by chasd00