Comparison

Board Brain vs Cogs Words

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Board Brain

This app helps chess players of all levels enhance their skills through interactive games and exercises. It focuses on mastering chessboard coordinates, understanding piece movements, and recognizing square colors to improve overall game vision.

Highlights
  • Interactive games
  • Skill-building exercises
  • Chessboard coordinate mastery
  • Piece movement understanding
  • Square color recognition
Features
Read full description

BoardBrain is designed to help both novice and experienced chess players improve their skills. It offers interactive games and exercises that focus on mastering chessboard coordinates, understanding piece movements, and recognizing square colors.

About

Cogs Words

Features
Read full description

Cogs Words: Letter Gears is a relaxing yet challenging word puzzle that combines vocabulary, logic, and spatial thinking in a unique rotating gear mechanic. Your goal is to rotate groups of letter gears to arrange the letters into the correct words. Every move changes multiple letters at once, so each decision requires careful planning. Use the category hint to guide your thinking, uncover hidden words, and solve each puzzle through observation and deduction. Whether you're looking for a casual word game or a rewarding mental workout, Cogs Words offers puzzles for every skill level. Choose from Easy, Medium, or Hard difficulty, then enjoy Infinite Mode with endlessly generated puzzles that keep every game fresh. Play anywhere with full offline support—no internet connection required. Track your completed puzzles, monitor your best results, and watch your solving skills improve over time. Features Unique rotating letter puzzle gameplay Hundreds of word puzzles plus endless generated challenges Easy, Medium, and Hard difficulty levels Infinite Mode for unlimited replayability Play completely offline Track completed puzzles and best records Clean, intuitive interface Great for vocabulary building, logical thinking, and daily brain training Easy to learn and satisfying to master, Cogs Words: Letter Gears offers a fresh twist on classic word puzzles. Rotate the gears, discover the hidden words, and enjoy endless brain-training fun wherever you go.

Screenshots

Board Brain4 screens
Cogs Words4 screens

Verdict

The call

The clearest difference is in-app purchases: Board Brain at none against Cogs Words's 1. Board Brain also leads on ads (none vs shown) and update cadence (every 6 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Cogs Words sells 1 one-off in-app purchase. Board Brain asks for nothing beyond the download.

UpkeepUpdate frequency

Board Brain ships an update every 6 days, Cogs Words every 3 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
Board Brain versus Cogs Words: the parameters behind the verdict, then further details
ParameterBoard BrainCogs Words
PriceFreeFree
Rating5.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.6
Further details — not scored
Size2 MB73 MB
Age rating4+12+
DeveloperSelvarajan ThangavelHuy Huynh

In-app purchases

None

Board Brain

No in-app purchases

1 purchases

Cogs Words

One-time1
  • Remove Ads$5.99

Questions

Is Board Brain free?
Board Brain is free to download, with no in-app purchases.
Is Cogs Words free?
Cogs Words is free to download, with in-app purchases available.
Do Board Brain or Cogs Words have ads?
Cogs Words shows ads; Board Brain does not.
Which is updated more often, Board Brain or Cogs Words?
Board Brain ships an update every 6 days, and Cogs Words every 3 weeks. Most recently, Board Brain was updated on November 4, 2026 and Cogs Words on October 31, 2026.

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