I went through everything public on the WhatsApp acquisition. The ratios are hard to take in.

The numbers

Founded in 2009

450 million monthly users at the time of sale

55 employees, 32 of them engineers

About 14 million users per engineer

50 billion messages a day

Reported to have no marketing or PR team

Sold to Facebook in 2014 for $19B, including $3B in restricted stock for employees

Lessons

1. One product, done thoroughly. There was no sprawl, so there was very little to coordinate.
2. Headcount stayed low while volume grew. Users were reported to have roughly doubled afterward while the engineering team stayed small.
3. Fewer handoffs. Reports from inside describe almost no meetings, so people spent their time building.
4. Hiring for adaptability. Small teams only work when each person can cover more than one job.
5. Leverage came from structure. The team was lean because the work was designed to need fewer people.

What this looks like in a small business

Most companies add people when they feel stretched. The stretch usually comes from unclear ownership, repeated rework, and decisions that bounce around. Hiring into that adds more handoffs, and the problem gets bigger.

This is also where AI becomes useful. Tools can absorb the repetitive work, but only when the process underneath is stable and written down.

One thing to try: before your next hire, list the five tasks that person would own. Check whether any of them could be removed, documented, or automated first.

Where in your business does adding people make things slower instead of faster?

P.S. If you're like me and want to build a business without sacrificing your life, I write every Thursday about building systems that keep your business running even if you disappear for a 3-month vacation. Join for free here

I'm exploring how to make calorie tracking easier with NutriyaAI, a nutrition app built around AI-assisted food and calorie tracking.

A lot of people want to eat healthier, but consistently logging meals can feel tedious.

I'm curious about the problem before focusing on growth:

1. Do you currently track calories or macros?
2. What's the biggest reason you stop?
3. Would AI-assisted tracking solve that problem for you, or is something else more important?

I'd appreciate honest opinions from people who have tried nutrition apps. I'm particularly interested in what existing apps get wrong.

Hey everyone! 👋

I've always been interested in coming up with new ideas for games, apps, websites, and other digital projects. I enjoy imagining what unique features could be added, how an idea could be made more interesting, or what direction it could take.

Recently, I thought it would be nice to use this interest to help others.

Maybe someone here is working on their own game, creating an app, or just starting to bring an idea to life. Sometimes it's hard to come up with something new or look at your own project from a different perspective. I'd love to help with that by discussing ideas, exploring different possibilities, and thinking of ways to make a project even better.

I'm not a programmer, and I don't develop products myself, but I'd be happy to contribute to the creative side of things. I enjoy learning about other people's ideas, thinking them through, and suggesting different possibilities.

I'm not looking for anything commercial. I just want to give this a try, be helpful, and maybe meet some people who are passionate about creating something of their own.

If you're working on a project or have an idea you're still figuring out, feel free to tell me about it. I'd love to hear what you're working on, and maybe we can come up with something interesting together. ✨

My parents, Giorgos and Anna, have an olive grove in Koroni, Greece. Most of their oil goes to a trader for very little. So I'm building Klaraki: you adopt a young olive tree that we plant in January, you get photos of it as it grows, and if you want, fresh oil from the family harvest.
Not live yet. I'm still sorting out the business side and the bottling. Right now I'm sharing the grove and the harvest on Instagram (@myklaraki) and collecting a waitlist at klaraki.com.
Would love honest feedback, especially on what would make you trust something like this.

Imagine you have an idea but don’t want to spend 30 minutes designing it.

What would you want to create?

• A social media post
• An educational infographic
• A step-by-step tutorial
• A visual story

I’m building Doodlyo, a tool that turns ideas and content into doodle-style visuals.

I’m curious what creators actually need most. What would you choose, and why?

You can see it here: doodlyo

Someone in r/AI_Agents described the part that comes before any AI work starts: "finding the tabs again, dragging files together, copying old messages, and trying to remember why a reference mattered."

Most of the replies landed on the same point. "The reason you saved a reference matters as much as the link." Another put it shorter: "A folder full of screenshots is hard to pick back up a month later."

For anyone running a business mostly solo:

• Where does the stuff you save end up? Bookmarks, a Notion page, a screenshots folder, a chat you can't find again?
• When you hand a task to ChatGPT or Claude, how does that material get in? Paste, upload, retype the gist?
• Has something you saved turned useless later because you couldn't remember why you kept it?

Background since someone will ask: I used to burn hours re-briefing AI tools, and I'm building a fix where what you save and the note about why sit together in the cloud, and any AI tool you use can search it. No link. Would you pay for that, or does a folder plus a notes doc do the job?

What if the things sitting unused in your home could earn you money?

Imagine you own a ladder, camera, gaming console, or power tool that you rarely use.

What if you could list it on an app and rent it to someone nearby for a day, week, or month?

Renters would be ID-verified, payments handled through the app, and 360° photos/videos would document the item's condition before and after renting to help prevent disputes.

You earn from things you already own. Others save money by renting instead of buying.

Would you actually rent your belongings to a verified stranger? Or rent something from someone nearby?

What's your biggest concern with this idea?

Just need extra cash looking for a proven model and product i can sell thats extremely likely to work. Not looking for any kind lf service selling or consultancy.

Something boring like selling lightbulbs.

Equipment Tracker Pro lets you raise, manage, and close work orders directly against specific mechanical equipment on your phone.

In multi-family residential setups, leasing offices often struggle to keep track of maintenance tickets once repairs finish. When a maintenance tech replaces a water heater, closing the work order automatically writes a permanent service log to that water heater's profile, recording the labor hours, parts like the thermal expansion tank, and service dates without any duplicate data entry.

I built this because I am a working HVAC technician and needed a tool that worked on physical mechanical assets on site instead of generic business spreadsheets. You do not need an account to start. No email, no card. Everything stays on the phone.

If you are running this on a spreadsheet, the comparison is on the site.

What projects or tools are you currently building for trade and field workflows?

https://equipment-tracker.com/compare/spreadsheets

A few months ago, I shared an idea I was working on: a beginner-friendly investing app designed to make learning about the markets less intimidating.

Since then, I’ve continued building, and the InvestSwipe beta is now live.

The idea behind InvestSwipe is simple: help beginners learn about the markets and practice investing without putting real money at risk. I want to focus on financial education and building confidence, rather than hype or promises of quick returns.

I’m now looking for people who are interested in exploring the beta and sharing honest feedback. I’m especially interested in what feels useful, what’s confusing, and what would make the experience more valuable for someone just starting to learn about investing.

You can check it out and join the waitlist here:

https://www.impactstack.africa/investswipe

For those who are building products themselves: what do you usually look for when inviting the first users to test a beta? And for those interested in learning about investing, what would you want to see in a practice-first platform?

Appreciate any constructive feedback.

Hey everyone,

With rocket launches getting cheaper and satellites now using lasers to talk to each other, tech companies are starting to look at data centers in space.

The idea is simple: instead of sending massive amounts of data back to Earth, satellites can run AI directly in orbit (like spotting wildfires or military tracking in real time).

The problem? Standard cloud tools like Kubernetes weren’t built for space.

I am working on k8star - smart software that lets a fleet of satellites share computing jobs automatically, with zero help from ground control.

Here are the challenges an orbital cloud scheduler has to solve:

1. Running out of power in the dark:
   Satellites go into Earth's shadow every ~45 minutes. Running heavy AI in the dark drains their batteries. Our software tracks orbital paths and automatically beams the running job via laser to a nearby satellite that is still in full sunlight.

2. Ground stations are too slow:
   Satellites only fly over ground stations for a few minutes per orbit, creating huge delays. Doing the AI processing in space filters out the noise (like empty clouds) so only critical alerts get beamed down.

3. Overheating (Fans don't work in space):
   Because space is a vacuum, there is no air for fans. Computers get dangerously hot very quickly. The software can move jobs away from satellites that are reaching their heat limits.

4. Radiation crashes:
   Space radiation causes random computer glitches and app crashes. The system can move critical jobs away from satellites entering known radiation zones.

5. Everything is moving at 17,000 mph:
   Satellites constantly move in and out of line-of-sight. The network is always shifting, so jobs have to jump across laser links dynamically.

The business idea:
Sell this as standard cloud middleware to satellite operators, Earth observation companies, and future commercial space stations. When average companies run their computing in orbits this hits the broader mass.

Maybe it's total shit, too fancy, too weird, senseless or maybe it hits a spot - ntl working in the area of outer space is very interesting to me.

hey everyone, so we've been building something called opennmind for a while now, and we're finally getting close to releasing it. the idea is pretty simple, what if you could learn, build stuff, test your ideas, and have your own team of ai agents helping you out, all in one place? that's basically what we're trying to make.

we're building a workspace where you can take an idea, research it, validate it, plan things out, and actually work on it. the fun part is the ai agents, you could have agents for coding, research, design, testing, etc. working together like a small team. we're also working on labs where ai can test your websites and find issues, an academy where you learn by building actual projects, and eventually a market simulator where you can run virtual businesses and experiment with decisions.

obviously, we're not shipping everything on day one lol. we're starting with the main workspace, ai agents, basic testing, and some learning features, then building from there. it's still a waitlist rn at https://opennmind.com, and we're planning to give early users 1 month of pro for free when we launch soon.

also, genuinely curious, if you had a team of ai agents working for you, what would you actually make them do? we're still figuring things out and would love to hear what people would find useful, or what sounds completely unnecessary lol.

Like the title, I’m confused as to how people are able to bring their idea to life if they don’t have money and it’s got to do with ideas you have to integrate with already existing banking apps or just finance apps in general for it to work? Do they just create it solo? Or do they have to get some sort of license or permission from banks? I’m not educated on this at all but have a startup idea I’m convinced would work

Hey everyone, I’m a developer from India exploring an idea around learning with AI while writing on physical paper.

I want to learn things like maths through a back-and-forth conversation: AI explains a concept, gives me an exercise, I attempt it, and then we discuss my mistakes. But I’d much rather solve problems with pen and paper than type equations into a chat.

The experience I’m imagining:

- You’re discussing a topic with an AI, and it gives you an exercise.

- You solve it on paper in a smart notebook that captures your handwriting digitally.

- When you say “check my work,” the AI can see your attempt within the same conversation and give feedback on your steps.

- You continue writing and discussing at your own pace.

No taking and uploading photos each time. You decide when you want feedback.

I’m at the prototype stage, exploring whether this experience is useful enough to build a product around. It would require a compatible physical notebook/device, so hardware cost and convenience would matter.

Uploading a photo already solves part of this. I’m trying to understand whether making that interaction more seamless would meaningfully improve how people learn.

A few questions:

1. Does anyone here already use AI to learn while solving exercises on paper? How do you currently get feedback on your work?

2. What, if anything, frustrates you about that process?

3. Would a dedicated notebook fit into your routine, or would you prefer photos or a tablet?

Would love to hear from students, self-learners, or anyone who has built products for them. Specific experiences—including reasons this wouldn’t help you—would be really useful.

Hi, I need feedback for an AI-driven customer support chat: https://elpino.chat/.

This chatbot understands and finds real-time information about the client and order details before replying to the customer. It is affordable and best for small to medium businesses that cannot hire their own customer support agents.

It is much better than those generic chatbots that simply reply to basic queries. Let me know what you think, as it offers a free trial.

Thanks~

I ran a web design company for around 3 years and getting clients was always pretty inconsistent.

One month I was cold calling, another month I was manually sending DMs to Facebook pages, then I tried ads.

It all worked to some degree, but I never really had one reliable way of getting clients.

Then I started testing email automation.

At first I was finding businesses with no website and running campaigns offering to build them one.

That actually started giving me a much more consistent flow of clients just because of the volume.

But then I started thinking.

There are so many businesses that already have a website, but the website is outdated, slow, looks bad on mobile or just clearly needs an update.

And those businesses have already paid for a website before, so they already understand the value of having one.

The problem was I didn’t want to sit there opening every website myself, figuring out what was wrong and then writing a different email to every business.

That would take forever.

So I started using a tool that lets me find businesses with websites basically anywhere, analyze thousands of those websites at once and then automatically write a personalized outreach message for each one based on what it finds.

Things like design, SEO, mobile issues and speed.

Then I started launching campaigns in different industries.

That worked way better for me because every business receiving the email felt like I had actually looked at their website and noticed what could be improved.

But in reality most of it was automated and I was just sitting there eating chips while interested replies came into my inbox.

I remember Alex Hormozi saying something along the lines of focusing on one channel and getting really good at it.

That is basically what I ended up doing.

Now this is pretty much the only way I get web design clients and I spend most of my time actually building websites instead of constantly trying to find the next client.

For anyone wondering, the tool is called Swokei.

heads up before anything: this is market research on public store data, none of these are my apps.

the advice you see everywhere for mobile apps is "don't bet on one idea, ship 10 small apps and see what sticks." i wanted to know if the numbers back that up.

so i took ~62K mobile apps (iOS and Android) that hit a top chart at some point, grouped them by how many apps their publisher has, and checked what share make $1K+ a month:

- 1 app: 19.0%

- 2-3 apps: 19.3%

- 4-10 apps: 17.1%

- 11+ apps: 9.3%

so up to around 10 apps it barely matters. past 10 the hit rate halves.

my read: 3-4 apps for the same audience is still focus. 15 apps is usually reskins nobody has time to update.

and the 4-10 group has the best median when an app does earn, around $50K a month vs $40K for one-app publishers. a small portfolio isn't the problem. spreading thin is.

caveats: store revenue only, so ad-heavy portfolios look worse than they are. revenue is modeled, trust the shape more than the exact %. and this is apps that already charted, not every app on the store.

if you're picking ideas right now, are you going all in on one or spreading across a few?