Ten by Ninety is the friendliest way to build real fluency with today's AI — ten minutes a day, right on your phone.

Days 1–5 are free forever on every new install. No account. No card. Nothing to cancel. Open it and start.

🎯 WHAT YOU LEARN
Three pillars over 12 weeks — written for absolute beginners, still useful if you already use AI every day:
• BRAIN (Days 1–30) — write prompts that get exactly what you asked for
• HANDS (Days 31–60) — delegate real work through AI workflows
• BUILDER (Days 61–90) — ship code alongside modern AI coding assistants

⚡ WHAT'S INSIDE
• 90 daily lessons on one calm rhythm: Show me · Tell me · Do it · Check it
• Real graded knowledge checks — never "just tick a box"
• In-app AI practice chat — ask, paste, iterate without leaving the lesson
• Quiz me and Explain shortcuts on every lesson
• Prompt-palette library — copy-ready templates, frameworks and slash commands
• Fable story lessons, 12-Week Bonus Course, Cheat Sheet and Prompt Playbook
• Streaks, badges, per-pillar progress and a Day-90 Practice Certificate with your name on it
• Listen to any lesson read aloud

💚 SIMPLE, HONEST PRICING
Start monthly and cancel any time — or pay once and keep it forever.
• Free — Days 1–5, forever
• Learner — $2.99/month or $9.99 one-time · Days 6–90, ad-free
• Coach — $6.99/month or $29.99 one-time · everything in Learner plus in-app AI practice chat, Fable stories and the 12-Week Bonus Course
• Founder Lifetime — $59.99/year or $79.99 one-time · everything in Coach plus lifetime updates and first-look access to new modules

Coach comes with a 7-day free trial in Google Play. The trial samples the tools — chat, Fable, portfolio — plus your next 3 lessons, so you can try the app properly before you decide.

Prices shown in USD. Google Play charges each buyer in their local currency plus local tax at checkout.

🌍 SIX LANGUAGES
All 90 lessons are fully translated into English, Spanish, French, German, Japanese and Brazilian Portuguese — not just the menus. Switch language any time; one tap on the Welcome screen.

🔒 PRIVACY-FIRST
No account required. Your progress stays on your device. We never sell data.

🧭 WHO IT'S FOR
Absolute beginners · students · small-business owners and solo operators · marketers and writers · analysts · teachers and trainers · beginner programmers · anyone who wants to use AI well without becoming an engineer.

⚖️ INDEPENDENCE NOTICE
Ten by Ninety is an independent daily-practice app built by Latitude 44. We are NOT affiliated with, endorsed by, or sponsored by Anthropic, OpenAI, Google, or any other AI company. References to specific AI assistants such as "Claude" appear in body copy for descriptive purposes only.

Claude, Claude Sonnet, and Claude Haiku are trademarks of Anthropic, PBC. Ten by Ninety references these products factually to describe app compatibility; no endorsement or affiliation is implied.