Keep your rated pool where your friends are. Use Aether for the free tools those sites gate — unlimited review, Scout, Twin Bots, and personal puzzles.
| Feature | Aether | Chess.com | Lichess |
|---|---|---|---|
| Unlimited game review | Yes — free | Capped on free | Yes — free |
| Opponent Scout dossiers | Yes — Ultra + share cards | Limited / paid tools | Insights, not dossiers |
| Twin Bot (clone style) | Yes + private ladder | No | No |
| Statistical opening explorer | Yes (Lichess DB + filters) | Explorer (gated depth) | Yes — excellent |
| Puzzles from your mistakes | Yes — free queue + rating | Paid-ish / limited | Puzzle dashboard |
| Photo / screenshot import | Yes → Review | No native | No native |
| Live + daily play | Rooms + correspondence | Huge pools | Huge pools |
| Weakness dashboard | Supercoach — free | Lessons / paid plans | Insights, DIY |
Great at “train from your games.” Aether keeps that loop free: review → personal puzzles → Supercoach, plus Scout and Twin.
Read the guide →Best paid spaced-repetition courses. Aether is the free drill + live explorer + “did I leave book?” half of opening work.
Read the guide →Unlimited browser review proved the demand. Aether adds Scout, Twin Bot, and a full play/train OS around that spine.
Read the guide →No. Keep rated pools where your friends are. Use Aether for unlimited review, Scout, Twin Bots, and personal puzzles.
Yes. Accuracy, grades, and eval graphs are not behind a daily wall. Sign-up is optional.
Same idea — train from your leaks — without a subscription on the diagnosis. Aether also lets you scout the next opponent and play their Twin.
Only if you never wanted authored courses. Keep MoveTrainer books you like; drill and check live stats on Aether for free.