Bodies, yes.01
We train our bodies
Gyms, runs, step counts, recovery scores. Physical fitness has never been more measured — or more celebrated.
The brain gym · Free on the App Store
Train Your Brain.
Every Day.
Quick, AI-scored mental workouts that sharpen your mental math, focus, critical thinking and the way you speak — five minutes a day. Now live on iPhone.
Free to download · A few minutes a day · No account needed to start
7 × 8
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The Problem
Your brain needs exercise too.
You train your body. You track your steps, your sleep, your workouts. But the muscle you use for everything — the one between your ears — rarely gets a session of its own.
Minds, rarely.02
We rarely train our minds
Mental sharpness is treated as fixed. It isn't. Like any muscle, reasoning and recall get stronger with reps — and softer without them.
Use it or lose it.03
AI is doing more of the thinking
AI is genuinely useful. But when it drafts, decides and remembers for us, the everyday reps that keep us sharp quietly disappear.
How Rusty Works
Six ways to get sharper.
Every session mixes short, game-like reps across the skills that matter most. Five minutes in, you’re already warmed up.
Critical Thinking
Spot weak reasoning before it persuades you, follow the logic, reach the better answer.
Logic puzzles & deduction drillsMental Math
Run the numbers in your head — fast, and without flinching.
Speed arithmetic & estimationArticulation
Say what you mean, clearly, the first time — with an AI Clarity Score on every answer.
AI-scored explain-it repsVerbal Fluency
Turn clear thoughts into clear speech and find the right word the moment you reach for it.
Quick-speak & word recall roundsMemory
Hold more in your head and bring it back on demand.
Sequence & pattern recallFocus
Lock in, tune out the noise, and stay with the task.
Attention & cognitive-agility gamesLevel Up Your Mind
It's a gym. Your brain is the muscle.
Show up daily, keep your streak alive, and watch the numbers climb. Rusty turns mental training into something you actually look forward to.
Daily streaks
A small win every day. Miss-protection and gentle nudges keep the habit alive without the guilt.
Real progression
Earn XP, climb levels, and unlock harder rounds as you improve. The reps adapt to you.
See yourself improve
Charts that actually move. Track speed, accuracy and your AI Clarity Score trending up, week over week.
Challenge friends
A fresh daily circuit every morning, plus head-to-head matches and a weekly leaderboard when you want to push.
Good morning
Today’s workout
12
4/5
drills done
Level 7
320 XP to Level 8
One more to keep the streak
This week
+24%MTWTFSS
Built for the AI Era
Let AI sharpen your thinking — not replace it.
AI is an incredible tool. The goal isn't to use it less — it's to stay sharp enough to use it well. Rusty even puts AI on your side of the table: every speaking and reasoning rep gets instant, specific feedback, so your own judgment, recall and clarity stay in peak form.
Be the editor, not the autocomplete
Sharper judgment means you catch what AI gets wrong and push it toward what's right.
Think faster than you can prompt
Quick mental reps keep your first instinct fast and trustworthy — no tab required.
Keep the human edge
Creativity, intuition and clear communication are still yours. Rusty keeps them strong.
Questions
Everything you wanted to ask
Rusty is a brain training app for iPhone that gives you quick, daily mental workouts. Each five-minute circuit mixes short, game-like reps across mental math, critical thinking, focus, memory and the way you speak — and your speaking and reasoning answers get an instant, AI-generated Clarity Score with specific feedback. It's built to keep your thinking sharp in the age of AI.
Get the App
Your brain gym is
ready when you are.
Download Rusty free on the App Store and run your first five-minute circuit today. Build a streak, watch your scores climb, and keep your edge in the age of AI.
- Free to download
- ≈5 minutes a day
- AI-scored feedback
- iPhone · iOS 16+
Free to download · iPhone · Optional Rusty Premium