Sketch Startups

Refrens is an all-in-one operating system for freelancers and small agencies that provides free invoicing, expense management, and payment collection tools, plus a B2B marketplace for lead generation. Founded by Naman Sarawagi in 2018, the platform has grown to over 100K users with 15% monthly growth by focusing on simplicity and user-centric design. The company is currently generating $10k/month in revenue and aims to reach 1 million users in India over the next 2 years before expanding internationally.

Habitual was a habit-tracking iOS app built by designer-turned-engineer Holger Sindbaek after he couldn't find an existing app that met his needs following reading Atomic Habits. Despite Holger's track record with successful side projects (a solitaire game played 3M times monthly, a popular Mac calculator), Habitual failed commercially due to his underestimation of marketing's importance. He posted on Product Hunt on a Sunday and then had no marketing strategy, leaving the app "dead in the water" in a crowded market.

Frontend Mentor is a freemium SaaS platform that helps developers improve front-end coding skills by building professionally designed projects. Founded by Matt Studdert, a former personal trainer turned developer, the platform grew from a simple resource list to a thriving community of 150,000+ members, reaching $17K MRR through organic word-of-mouth and community-driven growth, with a Product Hunt launch and strategic partnerships with content creators.

Tracy Osborn self-published Hello Web Design, a book teaching design fundamentals to non-designers, after launching it successfully on Kickstarter (raising $22,000). She later partnered with No Starch Press to republish it as a hardcover, shifting from self-publishing to a traditional publisher to offload marketing while maintaining her evergreen content. The book focuses on 80/20 design principles like typography, color, spacing, and layout that enable developers and founders to design interfaces themselves.

Learn UX is an online education platform founded by Greg Rog offering high-quality video courses on UI/UX design tools like Sketch, Framer, and Adobe XD. Greg invested approximately 1,000 hours upfront creating premium content before launch, focusing on real-world examples and practical approaches. The platform now generates over $10,000 in monthly recurring revenue while requiring only about one day per month of maintenance work, achieved through extensive automation using no-code tools like Zapier and Integromat.

Jen is a solo founder who built Lunch Money, a modern budgeting app targeting the gap left by outdated competitors like Mint and YNAB. Starting from a personal spreadsheet tracking multi-currency expenses while traveling, she coded a full MVP in 8 months while living in Japan, and achieved $800/month MRR as a one-person operation. She's grown to 40% of users migrating from Mint, proving there's still room for innovation in the personal finance space.

Cloud Campaign is a SaaS platform helping marketing agencies manage multiple client brands on social media at scale. Founded by Ryan Bourne in June 2017 after a layoff, the company bootstrapped to $25K MRR over two years by pivoting from a consumer-focused product to focus on agencies, conducting 500+ cold calls to validate the market, and ultimately discovering that native Facebook/Instagram lead generation ads with a free white-labeling offer drove efficient customer acquisition at $15 per lead with $4,000+ customer lifetime value.

Aplano is an employee scheduling and workforce management SaaS tool founded by Tadeus Gregorian that covers time-tracking, vacation management, reports, and communication for businesses with up to 500 employees. After 2 years of development with a small team of co-founders, they launched free to build Google ranking and user feedback, then transitioned to a subscription model 6 months later. The company has grown to five-figure monthly revenue through a strong focus on SEO, Google Ads, and Facebook advertising.