The brain gym · Launching 2026

Train Your Brain.
Every Day.

Daily mental workouts that sharpen your reasoning, communication, memory and cognitive agility — five minutes at a time.

Free during early access. No spam, ever.

Rusty the fox
7 × 8
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Aa
12

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.

Bodies, yes.01

We train our bodies

Gyms, runs, step counts, recovery scores. Physical fitness has never been more measured — or more celebrated.

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.

Reasoning

Spot the flaw, follow the logic, reach the better answer.

Logic puzzles & deduction drills

Mental Math

Run the numbers in your head — fast, and without flinching.

Speed arithmetic & estimation

Communication

Say what you mean, clearly, the first time.

Explain-it & rephrasing reps

Verbal Fluency

Find the right word the moment you reach for it.

Word recall & quick-speak rounds

Memory

Hold more in your head and bring it back on demand.

Sequence & pattern recall

Focus

Lock in, tune out the noise, and stay with the task.

Attention & cognitive-agility games

Level 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 recall trending up, week over week.

Daily challenges

A fresh workout every morning, plus head-to-head challenges 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
Rusty the fox
Rusty the fox

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 keeps your own judgment, recall and reasoning in peak form, so you stay the one in charge.

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.

Rusty the fox

Get Early Access

Be one of the first
to train with Rusty.

Join the waitlist and we'll let you in the moment early access opens. Tell us what you'd most like to sharpen — we're building around it.

Free during early access · No spam, ever · Unsubscribe anytime