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1. Catalyst Health Calculators

Eleven free health calculators that check your own numbers against published norms: fitness age, VO2 max percentile, grip strength, protein intake, body fat and more. No sign-up, nothing stored.

Health Tech

2. Fake Mayo

Real startup stories revealing exactly how founders got their first users and customers.

Marketing Tools

3. VoiceMOAT

AI-powered writing tool for serious creators. Clone your authentic voice, generate content that sounds like you, and scale your personal brand on Twitter/X.

Artificial Intelligence Productivity SaaS

4. InstantDM

InstantDM — Automate Instagram engagement, capture leads, and grow sales effortlessly.

Artificial Intelligence

5. Propr

Get funded up to $100K to trade crypto markets with clear rules, on-chain payouts, and up to 80% profit split.

Finance & FinTech

6. Game Server Backend

Game Server Backend (GSB) is a hosted backend for multiplayer games. Its features include matchmaking, player profiles, leaderboards, server registry, and live-ops configuration.

Developer Tools