Comparison

Mahjong Solitaire Puzzles vs Brain Flex IQ Test

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

Head to head
About

Mahjong Solitaire Puzzles

Engage in a classic tile-matching puzzle game. Remove all tiles by pairing them up, offering both a relaxing "classic" mode and a progressive "arcade" mode with unlockable layouts. Perfect for quick breaks or downtime.

Highlights
  • Classic and arcade modes
  • Gorgeous graphics and smooth animations
  • Multiple backgrounds and tilesets
  • 876 unique board layouts
  • Unlimited hints and undo
  • Daily challenges
  • Reshuffle and highlight options
Features
Read full description

Play a tile matching Mahjong game for free on your mobile device. Mahjong Solitaire is one of the world’s most popular puzzle board games for one player. The goal of the game is to remove all tiles out of the board by pairs. It's perfect as a break from work, waiting in line, or just twiddling your thumbs! Enjoy "classic" mode with all the classic Mahjong layouts unlocked or try "arcade" mode where you unlock unique layouts as you progress through different chapters and earn stars. Features: -Gorgeous graphics -Smooth animations -Nine different board backgrounds -Six different tilesets -876 different board layouts -Unlimited hints and Undo -Portrait and landscape layouts -Daily challenges with unique board layouts every day -Option to reshuffle the tiles when stuck -Option to highlight available tiles We hope you enjoy the game. Please send us your feedback at: support@forsbit.com

About

Brain Flex IQ Test

Test your cognitive abilities with a 50-question assessment covering pattern, logical, numerical, spatial, and verbal reasoning. Challenge friends, track your progress, and explore a vault of puzzles to keep your mind sharp.

Highlights
  • 50-question cognitive assessment
  • Five reasoning areas: pattern, logic, numerical, spatial, verbal
  • Personalized score and performance breakdown
  • Challenge friends and compare scores
  • Brain Flex Vault with puzzles and games
  • Sequence Breaker, Logic Grid, Codebreaker, Mind Maze puzzles
Features
Read full description

# HOW SMART ARE YOU, REALLY? **50 questions. 5 cognitive challenges. One score that might surprise you.** You think fast. You spot patterns. You solve problems. But how sharp is your mind when the questions get harder? Welcome to **Brain Flex** — an IQ-style assessment and brain puzzle experience built for curious minds, competitive thinkers, and people who love a good challenge. Test your reasoning skills, discover your strengths, challenge your friends, and keep pushing yourself with interactive brain games. ## DISCOVER YOUR BRAIN FLEX IQ SCORE Take on 50 carefully structured questions across five areas of cognitive reasoning: • **Pattern Reasoning** — Discover hidden rules and connections. • **Logical Reasoning** — Use deduction and critical thinking to solve problems. • **Numerical Reasoning** — Decode number patterns and relationships. • **Spatial Reasoning** — Challenge your ability to visualize shapes and rotations. • **Verbal Reasoning** — Explore language, meaning, and logical relationships. With multiple difficulty levels, every question brings a new challenge. Complete the assessment in approximately 25–30 minutes to discover your estimated IQ-style score and a personalized breakdown of your reasoning performance. ## THREE GAMES. ENDLESS CHALLENGES. Your IQ assessment is only the beginning. Enter **Brain Flex Vault**, where interactive puzzles put your problem-solving skills to work. **SEQUENCE BREAKER** Spot the hidden pattern. Predict what comes next. See how far your reasoning takes you. **LOGIC GRID** Follow the clues, eliminate possibilities, and find the only answer that makes sense. **CODEBREAKER** Crack secret combinations using deduction, strategy, and a little patience. Earn points, build streaks, beat your personal bests, and take on another challenge whenever you're ready. ## CHALLENGE YOUR FRIENDS Think you have the sharpest mind in your group? Share your results, invite friends to take the assessment, and compare your Brain Flex scores. A little competition makes every challenge more interesting. ## YOUR MIND. YOUR PROGRESS. • Explore Brain Flex with a free account. • Take a 50-question IQ-style assessment with a one-time purchase. • Receive your estimated score and performance breakdown. • Save your results and revisit them anytime. • Unlock Brain Flex Vault with an optional monthly subscription. No complicated setup. Just you, your curiosity, and the next challenge. ## THINK HARDER. SOLVE SMARTER. FLEX YOUR BRAIN. You might be surprised by what you discover. **Download Brain Flex and put your mind to the test.** --- **Important:** Brain Flex provides an estimated IQ-style score for recreational and informational purposes. It is not a professionally administered, standardized, clinical, educational, or diagnostic intelligence examination. Results should not be interpreted as a clinical measurement of intelligence. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Mahjong Solitaire Puzzles4 screens
Brain Flex IQ Test4 screens

Verdict

The call

The clearest difference is ads: Brain Flex IQ Test at none against Mahjong Solitaire Puzzles's shown. Brain Flex IQ Test also leads on rating (5.0 vs 4.6) and update cadence (every 4 days vs every 2 months). Mahjong Solitaire Puzzles's advantage is ratings volume (7.1K vs 2) and iOS requirement (13.0 vs 15.0). On price, in-app purchases, monetization model and device support 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. Mahjong Solitaire Puzzles sells 17 one-off in-app purchases and Brain Flex IQ Test sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Brain Flex IQ Test holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Mahjong Solitaire Puzzles has 7.1K ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Mahjong Solitaire Puzzles ships an update every 2 months, Brain Flex IQ Test every 4 days. Both last shipped on October 29, 2026.

Scorecard5 real differences · 5 level
Mahjong Solitaire Puzzles versus Brain Flex IQ Test: the parameters behind the verdict, then further details
ParameterMahjong Solitaire PuzzlesBrain Flex IQ Test
PriceFreeFree
Rating4.6 (7.1K ratings)5.0 (2 ratings) — better
Positive reviews46.9% of reviews—
Number of ratings7.1K — better2
Update frequencyEvery 2 monthsEvery 4 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size313 MB10 MB
Age rating12+4+
DeveloperForsbit LLCKirill Shatrov

Customer experience

Mahjong Solitaire Puzzles

All ratings7,113 ratings
Positive89.2%
Neutral7.5%
Negative3.3%
Written reviews147 reviews
Positive46.9%
Neutral14.3%
Negative38.8%

Brain Flex IQ Test

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Mahjong Solitaire Puzzles

Reported bugs

2 issues
  • Game crashes or freezes after updates
  • Ads causing issues with the game's functionality

Requested features

4 requests
  • More levels and chapters to be added
  • Option to play without advertisements
  • Better instructions and guidance on scoring
  • Ability to enlarge the game board

Brain Flex IQ Test

Not enough reviews yet to summarise bugs or requests.

In-app purchases

17 purchases

Mahjong Solitaire Puzzles

One-time17
  • Chapter "Life"$1.99
  • Chapter "Casual"$1.99
  • Chapter "Geek"$1.99
Show 14 more
  • Chapter "Symbols"$1.99
  • Chapter "Holidays"$1.99
  • Chapter "Halloween"$1.99
  • Chapter "Bridges"$1.99
  • Chapter "Flowers"$1.99
  • Chapter "Patterns"$1.99
  • Chapter "Trees"$1.99
  • Chapter "Mechanism"$1.99
  • Chapter "Sweets"$1.99
  • Chapter "Fantasy"$1.99
  • Remove Ads$3.99
  • Unlimited Reshuffles$5.99
  • No Ads & Unlimited Reshuffle$7.99
  • Mahjong Pro$29.99
2 purchases

Brain Flex IQ Test

Subscriptions1
  • Brain Flex Vault$4.991 Month
One-time1
  • Brain Flex Assessment$4.99

Questions

Is Mahjong Solitaire Puzzles free?
Mahjong Solitaire Puzzles is free to download, with in-app purchases available.
Is Brain Flex IQ Test free?
Brain Flex IQ Test is free to download, with in-app purchases available.
Which has better reviews, Mahjong Solitaire Puzzles or Brain Flex IQ Test?
Brain Flex IQ Test is rated higher. Mahjong Solitaire Puzzles averages 4.6 out of 5 from 7.1K ratings, while Brain Flex IQ Test averages 5.0 from 2 ratings.
Do Mahjong Solitaire Puzzles or Brain Flex IQ Test have ads?
Mahjong Solitaire Puzzles shows ads; Brain Flex IQ Test does not.
Which is updated more often, Mahjong Solitaire Puzzles or Brain Flex IQ Test?
Mahjong Solitaire Puzzles ships an update every 2 months, and Brain Flex IQ Test every 4 days. Most recently, Mahjong Solitaire Puzzles was updated on October 29, 2026 and Brain Flex IQ Test on October 29, 2026.

Other comparisons