Pricing.
One subscription. The full platform. Start free — no card required.
What you unlock
One subscription.
The full platform.
Courses for the theory. Simulation Arcade for the pressure. One simple price — no tiers, no add-ons, no upsells.
01
All 7 Strata layers
~40 hours of curriculum
02
All 15+ Arcade sims
Real pressure, not quizzes
03
System Design library
Interview-ready design walkthroughs
04
Weekly sim drops
Every Monday, automatic
05
Specialisation courses
Go deep where it matters
06
Persona-based curriculum
Path tuned to your role
07
Pomodoro + tracking
Focus timer & achievements
Petascale Labs · Full Access
$79.99$59.99/year (tax incl.)
Billed once a year. Works out to ~$5.00/mo — save 67%.
Start free — no card required · Cancel anytime
Free forever · No card
Try before you commit.
Real lessons, a real sim, real progress tracking — not a trial timer. Upgrade only when you've seen it work for you.
- Sample lessons across every Strata layer
- One free simulation, every month
- Last-Monday drop — free for everyone
This month in the Arcade
Free sim · “Cold Open”
A pressure scenario from the Customer-Discovery layer. Drops on the last Monday of every month, free for everyone.
Next drop · Mon, May 25Play now
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Full breakdown of what's in the free tier vs. full access.
Free Full Access
| What's included | Free | Full Access |
|---|---|---|
| Strata curriculum7 layers, ~40h | Sample lessons | Full access |
| Simulation Arcade15+ scenarios | 1 sim / month | All sims & games |
| System DesignInterview designs | Method + free problems | All problems |
| Weekly sim dropsEvery Monday | Last Monday only | Every Monday |
| Specialisation CoursesDeep dives | — | Included |
| Persona-based curriculumTuned to your role | — | Included |
| Pomodoro focusIn-app timer | — | Included |
| Progress + achievementsStreaks & bests | — | Included |
| Cancel anytime, no questions asked. All prices in USD. |
Questions, answered
Everything people ask before they upgrade.
Sample lessons across Strata 1–3, plus one free Arcade sim every month — the last Monday drop of each month is free for everyone, no subscription required. No credit card to start. You keep your progress if you upgrade.