Startups using Express

The best QuickBooks Desktop/Enterprise API on the planet.

PostNitro.ai is an all-in-one content creation and distribution platform designed to help creators and businesses generate and schedule high-performing social media carousels in seconds. By combining advanced AI models like GPT-4.1 and Claude Opus with professional design automation and an integrated content planner, PostNitro streamlines your entire social media workflow—from initial idea to final publication.

Self growth link in bio. Feature social analytics for instagram (in-house scrapper). TikTok. Already built system for threads, twitter and YouTube but not shipped yet.

B2C SaaS tool for DJs to discover, organize, and curate music for their sets. Built to $130K ARR with 40,000 users as a solo founder. 8% monthly churn, growing through paid acquisition on Meta. Subscription-based model with strong product-market fit.

Create Youtube videos in one click

Highly addictive game, revenue comes from upgrades/power-up purchases. No marketing efforts were made (yet). Easily marketable with huge growth potential. Could be pivoted to a crypto/web3 game

Check your IELTS essay in a couple of minutes. Get a clear and detailed report about your IELTS Essay you need to discover your weak areas and fix them.

Human replies that sell your product on autopilot

Wazzap AI is an AI automation tool that enables companies to create artificial intelligence agents to boost the quality of their customer relationship management.

Glamour is an AI-powered personal color analysis app helping users discover their ideal color palette for clothing, makeup, and accessories. Users upload a selfie and get personalized seasonal color analysis via AI. Subscription model with strong retention (~9% churn) and zero refunds. Revenue grew from $222 to $15.8K MRR in 10 months through Meta campaigns in Turkey alone.

Seo and AIO Saas platform allowing user to track their brand mentions on ai models

Zero-Human Company

Premium sports betting tools + data. The best odds, sharp bets, and risk-free profits—all in one platform. NOTE we ARE NOT A gambling app or gambling simulator. We aggregate data and present users best options to go and bet on their own. Over 15 professional grade betting tools , and over 120 sports book data feeds. As well as much much more. Everything is 100% finished and complete and has been for some time. I am just unable to give this much attention due to other commitments

MyFreshTools helps creators, marketers, and developers boost productivity with smart tools for YouTube, Google search, content creation, and more — all in one place.

Cheat on Edgenunity

Opire is a platform where bounties can be created for open-source project issues and developers can earn money by solving them.

AI-powered coding assistant platform with four production-ready products: a Next.js web app with multi-model chat (GPT-4, Claude, Gemini), a real-time Express/TypeScript API with Socket.IO streaming, a VS Code extension with inline completions, and a marketing landing page. Built-in Stripe payments, JWT/OAuth auth, MongoDB, Redis, and live code execution via sandboxes. ~4K weekly Google impressions with organic traffic already flowing.

Adaptive learning platforms that help people throughout the world learn about any topic. All content is dynamically generated with an AI. Users are charged during checkout to extend their limits and use higher quality LLMs.

A calm digital environment to help you enter flow state. Block distractions, manage your time, and achieve deep work.

Allows users to mail PDF documents from their phone without needing a printer or post office visit.

Turn Your Photos into Hilarious Caricatures in Seconds

Generate social media images, e-commerce banners, and more with our powerful API and seamless integrations. Scale your visual content without limits.

Don't just vibe code blindly.Connect your GitHub repo and let AI create a personalised learning roadmap. Understand every technology in your codebase with curated resources and AI explanations. Become a better prompt engineer and a software engineer.

Create on-brand designs, ads, and social content with AI — fully editable

JobAlign creates custom, ATS-optimized resumes for each job application using AI and based on your LinkedIn profile. Betting on product quality to drive recurring revenue, without relying on subscriptions. Free LinkedIn to PDF clear & ATS optimized resume.

LinkedIn content creation and management app with $9k+ in revenue with a LTD selling platform.

Fundraising platform - one hub for every cause

Gammacode is an AI-powered development platform that provides autonomous background runners working alongside tools like Claude Code, Cursor, and Codex. Developers can simply tag @gammacode in Slack, Linear, or GitHub to request features, bug fixes, and code reviews—the platform handles the technical work while you maintain control over approvals.

Roast your CV and get 10 page report full of actionable insights and your new CV that unlocks the first call.

TypeBoost is a macOS desktop app that allows users to apply AI text prompts system-wide to highlighted text – directly within other applications, without leaving the context. The app is launched via a global keyboard shortcut and enables users to quickly apply saved AI prompts to text, for example, to improve emails or edit text creatively.