A free alternative to GTO Wizard and PioSolver
GTO Wizard and PioSolver are the best-known poker study tools, and both cost money for full use: GTO Wizard is a subscription with a limited free plan, PioSolver a paid Windows licence. GTOLens is free and runs in any browser, your phone included. Here is an honest comparison of what you get — and what you don't.
At a glance
| GTOLens | GTO Wizard | PioSolver | |
|---|---|---|---|
| Price | Free, no signup | Subscription; limited free plan | One-time licence: Pro €450, Edge €800 |
| Runs on | Any browser, phone included | Browser | Windows desktop |
| Custom Hold'em postflop solving | Yes, free (heads-up) | Paid plans | Yes (heads-up) |
| Preflop | PLO solutions: 3-max, 4-max, 6-max, cash and MTT | Library of precomputed solutions | Heads-up preflop solver in Edge |
| Node locking | No | Paid plans | Yes |
Prices and plans checked on 4 October 2026 on the vendors' own sites; they change, so check before you buy.
What GTOLens gives you for free
- A Hold'em postflop solver in your browser. Flop, turn and river in heads-up pots with your ranges, board and bet sizes; accuracy of 1%, 0.5% or 0.3% of the pot, your choice. The solve runs on your own device.
- Ready-made 6-max 100bb starting ranges for typical single-raised, 3-bet and 4-bet pots, all editable.
- Phone support. The Light tree is designed for phones; bigger trees are more comfortable on a computer.
- Solved PLO preflop strategies. Frequencies, EV and combo matrices for every spot in the free viewer and the preflop charts.
When a paid tool is the better choice
- You need node locking or aggregated reports across many flops — GTOLens has neither.
- You need multiway postflop or very large trees: GTOLens solves heads-up postflop, and browser memory is limited.
- You want a trainer, hand-history analysis and a large library of precomputed Hold'em solutions — GTO Wizard's strength.
- You want to batch-solve hundreds of spots with scripts — a job for PioSolver.
Frequently asked questions
Is there a free version of GTO Wizard?
Yes, GTO Wizard has a free plan, but with daily limits; custom solving and full library access come with the paid subscriptions. GTOLens has no limits: solve as many spots as you like.
Do I need to download anything?
No. The Hold'em solver runs in your browser on WebAssembly and computes on your own device's processor — nothing to install, and your spots are never sent anywhere.
How accurate are GTOLens solutions?
The Hold'em solver stops at the exploitability you pick — 1%, 0.5% or 0.3% of the pot; at 0.5% the strategy is very close to equilibrium. The PLO preflop solutions are computed with professional solver software and shown without manual edits.
Can I solve Omaha postflop?
Not yet. For Omaha, GTOLens shows ready-made PLO preflop solutions — 3-max, 4-max and 6-max, cash and tournaments, with the frequencies and EV of every hand. Custom postflop solving is available for Hold'em only.
Does GTOLens work on iPhone and Android?
Yes, in any modern mobile browser. The Hold'em solver's Light tree is designed for phones, and the PLO viewer was built for mobile screens from the start.
Who should start with GTOLens
Players who want to see what balanced play looks like in specific spots, on any device, before paying for a subscription — or instead of it. And Omaha players looking for free solved preflop ranges. If you are new to this, read what GTO means in poker, then solve your first spot with the free poker solver.
GTO Wizard and PioSolver are trademarks of their respective owners; GTOLens is not affiliated with them.