Start free, upgrade into a monthly token allowance, and top up when you need more compute. Paid is for casual players, Pro is for opening preparation, and Ultra unlocks Stockfish plus Leela in the same session.
Shared Stockfish plus a small premium trial
Dedicated Stockfish for casual study
Prep-speed Stockfish for tournament players
Stockfish plus Leela, with dual-engine sessions
Every paid plan includes a monthly token allowance. Faster server profiles burn tokens faster, and Ultra burns the most when Stockfish and Leela run together. When you need more compute, buy extra tokens instead of waiting for the next billing cycle.
Paid, Pro, and Ultra each include tokens every billing cycle. Larger plans get more included compute before top-ups are needed.
Paid burns slowest, Pro burns faster on stronger Stockfish servers, and Ultra burns fastest when Leela or dual-engine analysis is active.
Buy extra tokens when your monthly allowance runs low. This keeps heavy users active without forcing everyone into the highest subscription.
| Plan | Engine access | Server profile | Token burn | Best for | Why upgrade |
|---|---|---|---|---|---|
| Free | Shared Stockfish | Shared CPU pool | No token burn after trial | Sampling and onboarding | Entry point |
| Paid | Dedicated Stockfish | Lower-cost CPU pod | Lowest paid burn | Casual study | Faster than laptop/web |
| Pro | Prep Stockfish | Stronger CPU pod | Higher burn | Tournament prep | More speed, larger allowance |
| Ultra | Stockfish + Leela | GPU + CPU hybrid pod | Highest burn | Dual-engine analysis | Leela and concurrent runs |
Tokens are the shared compute currency across Paid, Pro, and Ultra. The user-facing promise is simple: stronger engine modes burn tokens faster.
Choose by training style, not headline NPS.
| Plan | Who it's for | Engine access | Token allowance | Token burn | Session style | Why upgrade |
|---|---|---|---|---|---|---|
| Free | Trying the product | Shared Stockfish | Small trial | Minimal | Shared | Upgrade for dedicated speed |
| Paid | Casual player | Dedicated Stockfish | Included | Lowest paid | Study | Faster than laptop and web tools |
| Pro | Tournament prep, 1600+ focus | Stronger Stockfish | Larger | Higher | Prep | More depth and larger monthly budget |
| Ultra | Deep prep and engine comparison | Stockfish + Leela | Largest | Highest | Dual-engine | Run both engines at the same time |
A dedicated RunPod CPU or GPU machine assigned to your session. Your Paid, Pro, or Ultra analysis runs on its own hardware instead of sharing a busy public pool.
After 30 minutes with no new position, the app can ask whether you're still analyzing. It keeps casual and prep plans economical without penalizing active use.
Every paid plan includes monthly tokens. Paid burns them slowest, Pro burns them faster on stronger Stockfish servers, and Ultra burns them fastest when Leela or dual-engine mode is active. You can buy extra tokens anytime.
They serve different workflows. Paid is for casual analysis that already feels faster than most laptops. Pro is for tournament players and opening preparers who need stronger Stockfish sessions and a bigger monthly token budget.
Ultra adds Leela and lets you run Stockfish and Leela together in one session. That is the strongest workflow, so it also burns tokens the fastest.
No. Free is for shared Stockfish and lightweight trial usage. Leela is reserved for the Ultra tier.
No credit card required to start. Every paid tier adds monthly tokens, and extra tokens are available when your study volume grows.