REPLICATION GUIDE · AI Businesses

Email scheduling app

Boomerang is Baydin Inc.’s email productivity and meeting-scheduling suite for Gmail and Outlook, offered through browser extensions, add-ins and mobile apps.

● Already earning  $40K/mo  ·  Copy it for about $50K

Replication snapshot

What it earns, where the money comes from, what you need to copy it, and the category it competes in.

Monthly revenue$40K/mo
Copy budget$50K
Build time6 months
Growth channelsWord of mouth, Email marketing
Tools to copyClickFunnels, Signifyd
CategoryAI Businesses

How to copy this business and make money

Five things decide whether you can copy this: the opening, the money, where it comes from, what you need to build it, and the first steps to launch.

QUICK LOOKFree summary — what it sells, and the total budget
Fund a six-month launch including one paid month for two five-seat US consulting teams. Interview fifteen consultants and demonstrate ownership handoffs and visible failed-send recovery: this team workflow is the proposed reason to choose it. Total copy budget: $50K.

Want to see how that $50K splits line by line, what each line buys, and when to stop? The full breakdown is below.

PROVEN · ALREADY MAKING MONEY

Thousands of people are already making money with this playbook

If you want to make money, read this part. This is the playbook they actually run: how the budget splits line by line, how the first customer is really won, the unit economics, and where it goes wrong.

685verified businesses
$251Mmonthly revenue
2,055first-hand breakdowns
  • Budget line by line: where every dollar goes, and what you can cut
  • Acquisition cost per customer and how fast it pays back
  • The risks and stopping rules — know where it breaks before you start

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Open-source stack you can start from

Each repository was checked against the GitHub API for existence, stars and licence terms. Fork one instead of starting from zero. Where it says AGPL, read the terms before shipping a paid product.

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What this business does

Boomerang is Baydin Inc.’s email productivity and meeting-scheduling suite for Gmail and Outlook, offered through browser extensions, add-ins and mobile apps. Users schedule messages, return threads later, receive no-reply reminders, pause inboxes and arrange meetings within email. Co-founder Aye Moah’s September 2024 talk describes three engineers starting in 2010. On October 17, 2026 the official homepage claimed over two million active customers and 500 million delivered messages, alongside nearly 1.5 million businesses using it daily: differently scoped company claims, not verified counts. Its GQueues acquisition was announced in January 2025; GQueues’ own history dates the acquisition to 2024. Product and subscription pages remain available. Her talk self-reports $8M ARR, historical and unaudited, with no currency code.

Replication breakdown

01

Why it works — and where your opening is

Email is a communication channel and task list: messages get buried, follow-ups slip, and meetings need replies. Boomerang schedules messages, returns threads to inbox, and reminds users when replies are missing; meeting suggestions sit in email and adjust to availability. This can reduce context switching and guest friction without asking recipients to adopt another service. Daily inbox/calendar routines encourage repeat use, but retention and time saved are not independently verified by segment. Its homepage claims seven patents, potential IP whose scope and defensibility are unestablished; integrations and accumulated workflows might create switching costs, but features alone do not prove a durable moat. Test these costs and shared handoffs with small teams; don’t promise productivity gains or copy code/brand.
02

The money: revenue, cost, and margin

Monthly revenue$40K/mo
Revenue per employee$26.3K /yr

Estimated from technical complexity, people, tools, and delivery scope.

Aye Moah’s September 2024 talk reports $8 million ARR, $500,000 experiment-driven ARR, nineteen staff and $400,000 seed funding: historical, unaudited and without a currency code. The founder reports profitability, not a verified margin. Starter Story’s profile estimates roughly $42,000 monthly for 2024; its February 2025 breakdown currently opens at $667,000 monthly under a $10 million ARR title. These conflicting public estimates do not establish current income. Preserve US$50,000 startup and US$100,000 monthly display as the original times-two model, not actual sales or a forecast. Funding covers only a restricted Gmail team pilot and specified closure, not the full suite; current costs and telephone verification remain unknown.
03

Where the revenue comes from

Individual and team subscriptions monetize ongoing email productivity, with enterprise arrangements also advertised. The Gmail pricing page offers free Basic with ten monthly message credits and a thirty-day Pro trial without a card. Annual-billed monthly equivalents are $4.98 Personal, $14.98 Pro and $49.98 Premium; the page does not specify a currency code. Premium includes GQueues, while higher tiers add capabilities such as recurring messages and advanced features. Outlook help describes a separate fourteen-day trial. Verify platform, eligible account, renewal and checkout terms rather than merging these offers. The founder’s 2024 talk describes conversion, meeting-invite referrals and payment-recovery experiments, not independently measured current acquisition costs.
04

Tools you need to replicate it

Public tools include Gmail extensions, an Outlook add-in, mobile apps and email/calendar integrations. Gmail security guidance updated April 2024 describes Google OAuth, header-only scheduling storage and annual SOC 2 Type II audits; these are company statements, not an audit inspected here. The FAQ separately describes encrypted message analysis for advanced Respondable, so header-only storage does not mean no content processing. Aye Moah’s 2024 talk names Recurly for payment-recovery benchmarks and says the experiment team bought no specialized testing framework. Current internal languages, databases and full hosting stack remain unknown. Recommended managed queues, identity and checkout for a replica are distinct from observed original tools.

Success stories from this field

Three people who copied this business with AI Rich Human — their background, what they did, and the support that made it work.

Story by · Santi Ahmadi

Santi Ahmadi — from line cook to copying a $40K/mo business: Email scheduling app

I had already failed twice — a dropship store and a print-on-demand shop, both dead. I worked the line in a restaurant kitchen for 11 years — split shifts, burns, tips split three ways. Then a friend sent me a link to AI Rich Human. I expected another "get rich online" course and almost closed the tab. Instead I found real businesses that already make money — named companies with real revenue — and, for Email scheduling app, a copy-and-execute plan broken down to the numbers. My brother laughed when I told him. My old manager said I was throwing away a stable job. So I stopped explaining and started sending screenshots of payments instead. Nobody argues with a bank notification. Their breakdown answered the three questions I actually had: how much to put in (about $50K), what to build it on (ClickFunnels, Signifyd), and where the customers come from (Word of mouth, Email marketing). Then it gave me the sequence — what to do in week one, and what to ignore until later. I worked through the checklist in order. ClickFunnels, Signifyd first, then Word of mouth, Email marketing, then the outreach script — and two paying clients inside a month. The headline budget of about $50K is not a day-one number; I spent the minimum that could produce one customer and let the rest come out of earnings. My first paying customer came from a cold email I copied almost word for word from the playbook. I was scared to hit send. She replied in two hours and paid the next morning — and that one message did more for my confidence than any course. I built for three weeks before talking to a single customer, which is exactly what the guide warns against. My first five conversations changed the offer completely. I wish I had done those five calls in week one. I expected a course and got a technical partner. Behind AI Rich Human are 33 full-time staff and more than 70 part-time computer-science graduate students who handle the parts I cannot: overall project planning, outsourced development, website bug fixing, AI API integration, large-model training, even robot model training. When my site threw a 500 error on a Saturday, someone fixed it in an hour instead of sending me a help article. I undercharged for two months out of fear. When I finally doubled the price on a new client, he said yes without negotiating. The cheap clients had been the difficult ones all along. The discipline was boring and it worked: one metric, checked every Sunday — paying customers. Growth meant more of the same channel. A flat week meant a different offer, not a different business. There is no office and no boss. Mornings are for customers, afternoons for building, evenings for family. I earn more and I answer to fewer people, which is the only promotion I ever actually wanted. Today my copy of it pays me every month. The business I copied runs about $40K/mo — I am not at that scale, and I don't need to be: I was earning around $2,600 a month as a line cook in Tunis, and this already beats that, with room to grow. I am not a genius and I cannot code. What changed was copying a proven plan with a team behind me. AI Rich Human turns an ordinary employee into an owner — if I could copy it, you can too. Third attempt, but this time with an actual map. The project I copied, in full: http://www.airichhuman.com/stories/starterstory-47-boomerangapp-com?lang=en
Story by · Lian Jansen

Lian Jansen — from administrative assistant to copying a $40K/mo business: Email scheduling app

Everyone in my family works shifts. Nobody has ever run a business. I decided to be the first. For 14 years I was an administrative assistant — booking rooms, filing invoices, and a salary that never moved. A colleague forwarded me AI Rich Human during a lunch break. I scrolled past the hype and landed on the part that mattered: actual companies, actual revenue, and a step-by-step breakdown of Email scheduling app written for someone with no budget and no team. The plan was brutally specific: a launch budget of about $50K, the exact tools it runs on (ClickFunnels, Signifyd), the revenue channels that actually convert (Word of mouth, Email marketing), and the first steps to land a paying customer. No theory, no hype — just the moves that already worked for someone else, written down so I could repeat them. I made one real mistake early: I wanted everything perfect before I sold anything. Two weeks passed — I had a logo, a website, and zero customers. The plan says it plainly: sell first, build second. The moment I sent five rough cold messages, the business started moving. I blocked out evenings and did exactly what the sheet said: ClickFunnels, Signifyd set up, Word of mouth, Email marketing opened, the first-customer email sent. Two clients signed within three weeks. I never needed the whole $50K up front — I put in just enough to get one person to pay, then recycled that money. What actually saved me was the team. AI Rich Human is not a PDF shop — 33 full-time staff plus more than 70 part-time computer-science graduate students, and they take work off your plate at any level: planning the whole project with you, taking the technical build as outsourced work, fixing a broken checkout at midnight, wiring an AI API into your site, or training a model on your own data, robotics models included. When my payment page died on a Friday night, a real engineer answered. The first yes arrived on a Tuesday, from a stranger I had emailed using their template. I rewrote maybe four words. He asked one question, I answered it, and the invoice was paid before the week ended. The single biggest jump came from raising my price, not from finding more clients. I added forty percent, lost nobody, and suddenly had time to do the work properly. People at work found out and made jokes about "internet money". I stopped defending it and just showed the payout screen. The jokes stopped when the numbers got boring and regular. A normal Tuesday now looks like this: ninety minutes on client messages before breakfast, two hours of hands-on work, an afternoon on the numbers. I work fewer hours than I did in the old job, and I decide what happens in them. That part I still can't get used to. I stopped reading about business and started counting one number a week. If paying customers went up, I repeated whatever I had done. If they didn't, I changed the price or the pitch. That was the whole system. My version is small and it is mine. It earns less than the $40K/mo the original does — but more than the $3,000 a month I made as a administrative assistant in Medellín, and it grows while I sleep. I cannot code and I have no rich uncle. I had a plan, a link, and a team I could call. That was enough, and it can be enough for you. My mother still doesn't fully understand what I do — but she stopped telling me to find a "real job". The project I copied, in full: http://www.airichhuman.com/stories/starterstory-47-boomerangapp-com?lang=en
Story by · Tariq Saleh

Tariq Saleh — from retail salesperson to copying a $40K/mo business: Email scheduling app

I am not the type who starts things. I have a folder full of half-finished plans. This one was different, because the steps were already written down. For 17 years I sold phones in a mall kiosk — twelve-hour shifts, commission barely covering rent. I found AI Rich Human through a search I had almost given up on. What kept me there was not a promise but a spreadsheet: Email scheduling app, what it costs to start, which tools it runs on, and how the first customer actually arrives. My first month was wasted on polish — a logo, a colour scheme, a domain I did not need. Nobody bought anything. Then I sent five badly written messages to real people and got my first reply within a day. Sell first, decorate later. What I got was not a course but a build sheet — the launch budget (about $50K), the stack (ClickFunnels, Signifyd), the channels that actually convert (Word of mouth, Email marketing), and the order to do things in. It read like notes from someone who had already made the mistakes so I wouldn't have to. So I followed it, step by step. I set up ClickFunnels, Signifyd, opened Word of mouth, Email marketing first, and used their first-customer script to land my first two paying clients within a few weeks. The plan lists a full launch budget of about $50K, but nobody spends that on day one — I started with the smallest slice that could produce a paying customer, and reinvested from the revenue. I sent eleven messages before anyone answered. The twelfth person — a small studio owner — replied "how much?" and paid that afternoon. Eleven rejections cost me nothing but an evening. Nobody warns you about pricing. My first price was so low that I was busy all day and still broke. On the third client I raised it by forty percent and nobody blinked. That same client later sent me two referrals. The part nobody advertises: there is a bench behind the plan. 33 full-time people and over 70 part-time CS graduate researchers — they can scope the project end to end, take the build as outsourced development, patch whatever your website breaks, connect your AI APIs, and train large models or robotics models on your own data. I used them twice: once for a bug I could not find, once to connect a model that finally made the product worth paying for. I also learned to trust numbers over fear. Every week I tracked one thing: paying customers. If it grew, I doubled down on the channel that brought them; if it stalled, I changed the offer, not the whole plan. My mother asked, twice, whether this was a scam. The third time she asked, it was to find out how much I was making. I did not convince anyone with words — the transfers did it. I still get up early, but now the first hour belongs to me, not to a commute. Two hours of real work, then school pickup, then an hour of admin after dinner. Same number of hours, completely different life. A year ago I was a retail salesperson in Lima on about $3,400 a month. Today this copy pays me more than that, and the business I copied is doing $40K/mo — proof the ceiling is far above me. Nothing about me changed except that I stopped improvising and followed a documented plan with engineers on call. That folder is still there. This is the only file in it that ever made money. The project I copied, in full: http://www.airichhuman.com/stories/starterstory-47-boomerangapp-com?lang=en

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