Solopreneur case studies — 2/10
Solopreneur and side-business cases
25–48 of 239
Instatus: $48K MRR with Every Metric Public, After Dropping "Sup" and Repricing Upmarket
The first version, "Sup," never got a single paying customer. Founder Ali Salah threw away the name and the brand, repositioned toward larger companies, and raised prices. $5K MRR in February 2022; per the public metrics page, most recently $48,017 MRR and 1,248 paying customers. A solo status-page SaaS growing with its numbers in the open.
NinjaPear: After LinkedIn Sued His $10M ARR Company, the Founder Rebuilt in Two Weeks and Reached $15,000 a Month in Six Months
Steven Goh grew Proxycurl, a LinkedIn scraping API, to about $10M ARR before LinkedIn sued in January 2025. He settled and sold to a competitor. NinjaPear, a B2B data API he rebuilt in two weeks with Claude Code, reached 1,036 users and $66K ARR in 54 days, then $15,000 a month within six months.
Hitsuji: Quit With No Website, Savings Down to ¥20,000, Then ¥1.7M a Month in Year One
In April 2016 he quit his job without even owning a website. By June, accrued commissions were still zero and his savings fell from 700,000 yen to an eventual low of 20,000 yen. Working 14-16 hours a day, he wrote 120 articles, hit 200,000 yen a month in September, 1 million yen in January 2017, and over 1.7 million yen in March — Hitsuji's self-published record of year one.
Closet Tools: A Tool That Just Automates Poshmark Sharing, Making $30-40K a Month — a Solo SaaS Built in the 5 AM Hours at a Single $30 Price
It started as a 30-line script to help his wife sell on Poshmark. After three years of self-teaching from 5 to 7 AM, Jordan O'Connor launched Closet Tools in February 2018, reached $38K/month and 1,500 customers by late 2020, and was still in the $30-40K MRR range in 2023. The price has stayed at $30/month, and acquisition runs almost entirely on SEO.
Laugh-Raku: ¥1.91M a Month from 256K Pageviews — the ¥7.5-per-View Math Behind a 12-Year Solo Blogger
Taku Suzuki started blogging in January 2013 and went independent the following year. His about page states ¥1.91M a month from 256,000 pageviews and a peak month of ¥6M. We look at the unusually high revenue per pageview — roughly ¥7.5 — and at how a personal blog stays alive for 12 years.
Trivipedia: 560 Articles Mass-Produced With Claude Code in 3 Months for ¥12,948 a Month. Reading an AI-Automated Media Site by Its Own Reports
A trivia blog opened in 2017 and dormant for seven years relaunched as Trivipedia in June 2026. A Claude Code pipeline published 90 articles in June, 174 in July and 286 in August. August brought 54,786 pageviews, ¥11,255 in AdSense and ¥1,693 in note sales. Pageviews doubled monthly while search CTR fell from 4.22% to 2.80%.
Fukugyo Compass: Under ¥10K/Month for 8 Months, Then ¥4.84M in Month 25 — Inside Kunitomi's 200-Hour-a-Month Side-Hustle Blog
Fukugyo Compass, the side-hustle blog run by Kunitomi — a salaried worker who moved from a trust bank to a web marketing firm — earned under ¥10K/month for its first 8 months, hit ¥4.84M in month 25, and peaked at ¥12M/month. We chart the monthly progression and the 200 hours per month behind it from two interviews.
Ikeda Hayato: The Blogger Who Published His Full ¥4.05M Monthly Revenue Breakdown — Rereading the Origin of Japan's "Income Report" Culture
Ikeda Hayato of "Mada Tokyo de Shomo Shiteru no?" published the breakdown of his roughly ¥4.05M in January 2017 revenue (about ¥2M affiliate, ¥1.07M note sales, 2.18M pageviews) on note. A third-party compilation traces the arc from ¥40K a month in 2012 to ¥5.21M in February 2016. Rereading measured records of personal-blog economics.
Tenshoku Antenna: A One-Person Media Site, ¥700M Plus a ¥300M Earnout from Listed Company Logly
Tenshoku Antenna, a Japanese job-change media site run by moto (Shunsuke Totsuka) as a one-person company, became a 100% subsidiary of listed adtech firm Logly in April 2021. The founder disclosed the price himself: ¥700M plus an earnout of up to ¥300M. Negotiations took about six months, and his director compensation exceeded ¥100M a year — one of the largest disclosed exits for an individual-run media site in Japan.
Shichinatsu: A Salaried Designer's BOOTH Asset Shop Sells ¥1.08M in Six Months — Every Monthly Figure From ¥100K to ¥250K, Disclosed
Shichinatsu, a salaried designer, discloses every monthly sales figure from selling design assets on BOOTH. Revenue grew from ¥102,000 in July 2025 to ¥249,000 in October, totaling ¥1,083,410 over six months. A real month-by-month record of a side business built by productizing day-job skills.
Mirai Shokudo: A Jimbocho Diner That Published 4 Years of Books — ¥34,000 a Day, 23% Food Cost
Mirai Shokudo, the Tokyo set-meal diner opened in 2015 by Sekai Kobayashi, a former IBM and Cookpad engineer, has operated while publishing its full business plan and its monthly financials. It was profitable at ¥1.1M in monthly sales in 2016; October 2019 showed ¥709,000 in sales at a 23% food-cost ratio. No other restaurant's books are this visible.
textlint Maintainer azu: ¥2.29M a Year in OSS Sponsorships — textlint, JSer.info, and 14 Years of Continuity Built a Donation-Funded Solo Practice
azu, known for the proofreading tool textlint and the 14-year-running JSer.info, publishes his open-source finances every year. His 2025 GitHub Sponsors income was about ¥2.29M (¥160K–¥366K per month). A rare documented case of donation-only income reaching monthly-revenue levels without selling anything.
Ikameshi: ¥10M a Year Selling 3D Assets for VRChat — Six Years on BOOTH After Quitting the Day Job at ¥50,000 a Month
Ikameshi, who sells VRChat 3D assets on BOOTH, reached annual revenue of ¥10M in 2024 (¥4.46M in yearly BOOTH sales plus commissioned work). The threshold for going freelance was "¥50,000 a month." A metaverse-economy case whose numbers can be followed through the creator's own note series, from a cumulative ¥7M in 2023 onward.
Uneed: Running a Product Hunt Alternative Solo to $130K a Year — Inside the Books of "Marketing Over Building"
Uneed, a launch site run single-handedly by France's Thomas Sanlis, roughly quadrupled annual revenue from $35K in 2024 to $130K in 2025 — 45,000 new accounts and 7,500 launches in a year. The books are entirely public, from $66/month in running costs to an offline event held at a deliberate loss.
Sauna Ikitai: A Hobby Search Site Reaches ¥72.88M in Year-Two Revenue — Zero Employees and a ¥370/Month Subscription Capped at 10,000 Members
Sauna Ikitai, a sauna search site four enthusiasts started as a hobby, grew from about ¥14.01M in first-year revenue to about ¥72.88M with over ¥10M in net profit in year two, per reporting based on its statutory filings. No employees were hired, and the ¥370/month paid membership is capped at 10,000 members. The endpoint of turning a hobby into a business, read in numbers.
CyberLeads: After 19 Failed Projects, a "Freshly Funded Companies" Lead List Built in 31 Days Now Makes $53.7K/Month — with a Free Newsletter as the Sales Engine
Greek developer Alex West launched CyberLeads in February 2020 — his 20th project after 19 failures, built in 31 days. It sells monthly lists of freshly funded companies. From $290 MRR in month one to $53.7K/month by October 2024, with a free 10-lead weekly newsletter funneling buyers to the paid tiers.
SEObot: An AI That Writes SEO Articles Hits $46K MRR and $1.8M Lifetime — the Numbers Come from a Public Stripe-Linked Dashboard
John Rush's SEObot is a SaaS where AI keeps writing SEO articles. As of August 2026, its $46,517 MRR, $1.82M lifetime revenue, and 636 subscriptions are verifiable by anyone on a Stripe-connected public dashboard. Reading the numbers, AI-content controversy and all.
Feather: The "Write in Notion, Publish as a Blog" SaaS Sold for $250K Two Years In — the Buyer Was Tibo, Who Exited Tweet Hunter
Bhanu Teja P built Feather in public on X, reaching $50K ARR 9.5 months after launch. In June 2024 it sold for $250K at $6K MRR — roughly 3.5x annual revenue. The buyer was Tibo, known for exiting Tweet Hunter. A rare look at how peer-to-peer micro-M&A gets priced.
The God of Blog: 310K Pageviews Made ¥47K a Month, 6,499 Pageviews Made ¥53K — a 6-Year-2-Month Measured Record of Niche Selection
A One Piece analysis blog earned ¥46,801 on 310K monthly pageviews; the third blog, about blogging itself, earns ¥53,232 on 6,499. Per-pageview value of ¥0.15 versus ¥8.2 — Hebo published the full 6 years 2 months it took to reach ¥50K a month, failed sites' numbers included.
GummySearch: The Reddit Research SaaS That Chose to Close While Profitable — Four Years Ended by a Commercial API License That Never Came
After roughly four years running his Reddit research tool alone, founder Fed shut GummySearch down in November 2025 when commercial-license negotiations over the Data API fell through. Failory reported $35K MRR at closure. With 140,000 users and the business in the black, this was an ending caused by neither churn nor running out of money.
BoltAI: $15K a Month on One-Time Licenses in a Subscription-Only AI Market
Vietnamese solo developer Daniel Nguyen went against the "AI tools = subscriptions" consensus and sells BoltAI, a native macOS AI app, as a one-time license: an average of $15K a month and 7,000 customers 18 months after launch. He also documented the $19→$79 price climb and the year lost on his failed first product, KTool.
The Exit 8: A ¥470 Solo-Developed Game That Sold 30,000 Copies on Day One and 1.4 Million in Just Over a Year — How "Spot the Anomaly" Made Streaming Sell Copies
The Exit 8, a ¥470 walking simulator built alone by a former game-company employee, sold over 30,000 copies on launch day in November 2023 and passed 1.4 million worldwide by January 2025. It spawned the "8-like" genre, and its live-action film adaptation reached ¥5.17 billion at the box office.
Inkdrop: ¥150,000 a Month from a $4.99 Markdown Note App — Two Years of an Indie SaaS That Stopped PR Emails and Refused to Go Freemium
Japanese developer TAKUYA's Inkdrop reached ¥150,000 in monthly sales about two years after launch, with a ¥950,000 single-month spike in August 2019. A 1,000-person private beta, a 60-day free trial, no freemium, no more PR emails — the reasoning behind each decision is public, alongside the numbers.
ProjectionLab: $1M ARR from 4–6 Hours a Night, Every Weeknight, for 4 Years — the Growth Curve of a Financial-Planning SaaS Raised by the FIRE Community
ProjectionLab started at $150 MRR in 2021 and reached $1M ARR in June 2025. Developer Kyle Nolan quit his job only at $23K MRR. A Hacker News post, one word from Mr. Money Mustache, and an 8,500-member Discord were the main engines of growth.