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10 Bootstrapped Billion-Dollar Companies, AI That Grades Essays, and the $1K MRR QR Menu Startup
Chris Bulen & Daniel Ebohon
August 18, 2026
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Hi everyone 👋
It's Chris & Daniel, from Startups.fyi.
Welcome back! Six tools made the cut this week: free forever e-signatures, AI essay grading for teachers, a QR menu system for restaurants, text-to-diagram magic for developers, scheduling APIs with AI baked in, and a trio of utility apps with 300K+ downloads built by one founder in Gujarat. Real founders, real revenue..
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Let's get into it. 👇
Startups FYI Spotlight
📝 A frustrated teacher inspired this tool. It helps teachers by cutting their grading load and giving students specific, high-quality feedback on essays, without spending every evening buried in papers. (Pre-revenue)
📲 One founder in Gujarat, three free utility apps, 300,000+ downloads. A QR scanner that flags malicious links, a WhatsApp status saver, and a GPS land measurement tool for farmers. ($100MRR in revenue)
✍️ Designed for solo entrepreneurs and freelancers, this e-signature tool offers unlimited legally binding signatures without your credit card information needed. (Generating $500/month)
🚚 Founded in 2014, this tool integrates Artificial Intelligence into scheduling and planning tools via APIs. (Generating €400 for the solo founder)
Elon's Launching His Own "iPhone." 3 Stocks to Buy to Prepare
If you'd bought Apple before the first iPhone, you'd have seen peak gains of 7,537%. One product turned ordinary investors into millionaires.
Now Elon Musk is launching his own version — a device he claims will be "10x bigger than the largest product in history."
Target launch: July 22. Just days away.
The people who win on launches like this don't buy after the headlines. They position before. Our analyst pinpointed 3 stocks set to ride the launch — with entry guidance and price targets, plus a bonus 4th pick (the most undervalued name in the supply chain) and a 3-phase playbook showing exactly when to buy, when to add, and when to take profits.
100% free. No credit card. Over 2,500 investors have already read it.
🍜 This tool turns any menu into a QR ordering system in minutes. Customers order in their own language, Google reviews get collected on autopilot, and there's no expensive hardware or commission fees. (Generating $1,000 MRR)
📊 Discover this free online tool that converts plain text into clean sequence diagrams, making it the fastest way for developers to document architecture. (Generating $1,500/month average)
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Startups FYI Roundup
💡 50 Startup Ideas You Can Launch With Under $5K
Not sure what to build? This list ranks 50 bootstrapped business models by ROI, with real revenue benchmarks for each, from niche job boards pulling $2.5M a year to Chrome extensions and micro-SaaS tools. Each idea includes startup costs, time to first revenue, and honest difficulty ratings.
💰 10 Companies That Needed No Money, but Built Empires
Mailchimp sold for $12B. Calendly hit a $3B valuation. Zoho serves 60M+ users and has never taken a dollar of outside money. This breakdown covers 10 bootstrapped winners and the five principles they all share, including why the best founders build the viral loop into the product itself.
📱 The Content Strategy Behind $150K/Month Apps
Paid ads are getting more expensive while organic content keeps getting cheaper. This video breaks down a marketing strategy built on scaling content and UGC that the creator says works for any app, and includes a free downloadable blueprint so you can run the same playbook.
(Tag @ChrisBulen to get your project featured in next week’s roundup)
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That’s it for this time! See you again next week.
— Chris (@ChrisBulen)