Mobile apps
Cal AI
Three AI iPhone apps: RizzGPT (dating assistant), Umax (looks/self-improvement) and Cal AI (calorie tracking).
Revenue (self-reported)
$10M+ to date
RizzGPT ~$2.5M/yr; Umax ~$5M past year; Cal AI $1M+/month
How it started
Blake Anderson hustled since childhood, then after college set a goal to make $50K in 12 months while living at his parents' house. He taught himself to code with ChatGPT in May-June 2023 and launched RizzGPT in July 2023 from a frat-group-chat insight, followed by Umax and Cal AI (co-founded). Growth came from TikTok/Instagram influencer marketing and in-house UGC.
Tools they use
- Featured
OpenAI
AI
API access to GPT models.
Usage-basedVisit OpenAI Figma
Dev Tools
Collaborative interface design tool.
Free tier · from $15/moFree tierVisit FigmaExpo
Frontend
Framework and cloud services to build React Native apps.
Pricing not listedVisit ExpoCursor
AI
AI-first code editor.
FreeFree tierVisit Cursor
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Founders
- Blake Anderson · Founder / Co-founder
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