Comparison

Lethe chess vs Mind Matrix Trainer

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Lethe chess

Features
Read full description

Practice against a GM chess bot without looking at the board, utilize instant feedback, or play against your friends without a board and keep track of all moves said with this app.

About

Mind Matrix Trainer

Features
Read full description

Mind Matrix Trainer helps you sharpen your memory with four engaging game modes โ€” all in quick, focused sessions you can play anywhere. **Four Game Modes:** - Word Recall โ€” Memorize a list of words, then pick them from a shuffled set of real and decoy words. - Number Recall โ€” Study a sequence of digits, then type them back from memory. - Spatial Memory โ€” Remember which cells light up on a grid, then recreate the pattern. - Sequence Recall โ€” Watch a color sequence play out, then repeat it in the correct order. **Progressive Difficulty:** Start on Easy and work your way up through Medium and Hard. Each difficulty ramps up as you advance through levels โ€” more items to remember, less time to memorize. Beat a level perfectly to unlock the next. **Track Your Progress:** View your score history with charts, see your high scores across all modes and difficulties, and challenge yourself to beat your personal bests. **Power-Ups:** Earn coins as you play and spend them on power-ups: Time Freeze, Flashback, Hints, Second Chance, and Slow Motion. Use them strategically to push past tough levels. **Practice Mode:** Jump to any level in practice mode to train specific difficulties without affecting your main progress. No ads. No tracking. No internet required. Just pure memory training.

Screenshots

Lethe chess3 screens
Mind Matrix Trainer4 screens

Verdict

The call

Lethe chess and Mind Matrix Trainer are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Lethe chess versus Mind Matrix Trainer: the parameters behind the verdict, then further details
ParameterLethe chessMind Matrix Trainer
PriceFreeFree
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS18.018.0
Further details โ€” not scored
Size80 MB11 MB
Age rating4+4+
DeveloperHenry HoughtonKeegan O'Hare

In-app purchases

None

Lethe chess

No in-app purchases

None

Mind Matrix Trainer

No in-app purchases

Questions

Is Lethe chess free?
Lethe chess is free to download, with no in-app purchases.
Is Mind Matrix Trainer free?
Mind Matrix Trainer is free to download, with no in-app purchases.
Do Lethe chess or Mind Matrix Trainer have ads?
Neither Lethe chess nor Mind Matrix Trainer shows ads.

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