Comparison

Category Stack vs Toilet Brain Games

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

Head to head
About

Category Stack

Features
Read full description

Category Stack is a satisfying puzzle game where you solve puzzles by matching visual and word cards with the categories they belong to. Study each card carefully, discover the connection between them, and place each one into the correct category. Some cards use pictures, while others use words, challenging your logic, vocabulary, and ability to spot relationships. Every correct match brings you one step closer to completing the level. Game Features: Unique category-matching puzzle mechanic A fun mix of picture and word cards Simple to learn, increasingly strategic to master Fresh categories with clever obstacles and challenges Relaxing and rewarding gameplay you can enjoy anytime Can you find where every card belongs and complete all the categories?

About

Toilet Brain Games

Engage in quick, daily brain games designed to improve memory, logic, focus, words, and trivia. Enjoy 21 different games that adapt to your skill level, track your progress, and collect unique cards, all playable offline without ads.

Highlights
  • 21 quick brain games
  • Daily rotating challenges
  • Adaptive skill levels
  • Offline play
  • No ads
  • Collectible cards
  • Progress tracking
Features
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Your daily sit just got smarter. Einstool turns the 5 minutes you already spend on the throne into a hilarious daily brain workout. 21 quick games. Doomscrolling trains nothing. Einstool trains your memory, logic, focus, words and trivia — in sessions designed to fit exactly one sit. YOUR DAILY THRONE WORKOUT • 3 quick games from different skills, ~5 minutes total • A rotating daily challenge with a record to beat • Keep your streak alive — genius takes reps 21 GAMES, 5 SKILLS Memory — Shopping Run, Face Party, Pocket Pairs, Hold That Number Speed — Color Says, Flush It or Bin It, One of a Kind, Stepping Stones Words — Word Plunger, Word Swirl Logic — Tile Tumble, Plumber's Rush, Roll Call, One Poo Per Loo & more Trivia & Geo — True or Poo, Flag Dash, Pin Drop, Capital Rush & more GET SMARTER, SEE IT HAPPEN • Skill levels that adapt to you — every game gets harder as you get better • Percentiles after every game ("Top 12% of geniuses") • Stats, streaks and a friendly roast of your weakest skill COLLECT THE CHAOS • 51 collectible cards with delightfully savage quotes • Earn them just by playing — then share them with the friend who needs one The flush waits for no one. Download Einstool and make every sit count. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://einstool.com/privacy/

Screenshots

Category Stack4 screens
Toilet Brain Games4 screens

Verdict

The call

The clearest difference is in-app purchases: Toilet Brain Games at none against Category Stack's 7. Category Stack's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.6). On price, update cadence and ads 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. Category Stack sells 7 one-off in-app purchases. Toilet Brain Games asks for nothing beyond the download.

UpkeepUpdate frequency

Category Stack ships an update every 3 weeks, Toilet Brain Games every 2 weeks. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.

Scorecard3 real differences · 6 level
Category Stack versus Toilet Brain Games: the parameters behind the verdict, then further details
ParameterCategory StackToilet Brain Games
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsYesYes
In-app purchasesYesNo — better
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.6
Further details — not scored
Size253 MB50 MB
Age rating4+9+
DeveloperBatuhan UCAKhawnan Management Solutions LLC

In-app purchases

7 purchases

Category Stack

One-time7
  • Gold Pack 1$1.99
  • Gold Pack 2$7.99
  • No Ads Pack$7.99
Show 4 more
  • Gold Pack 3$14.99
  • Gold Pack 4$29.99
  • Gold Pack 5$54.99
  • Gold Pack 6$99.99
None

Toilet Brain Games

No in-app purchases

Questions

Is Category Stack free?
Category Stack is free to download, with in-app purchases available.
Is Toilet Brain Games free?
Toilet Brain Games is free to download, with no in-app purchases.
Do Category Stack or Toilet Brain Games have ads?
Both Category Stack and Toilet Brain Games show ads.
Which is updated more often, Category Stack or Toilet Brain Games?
Category Stack ships an update every 3 weeks, and Toilet Brain Games every 2 weeks. Most recently, Category Stack was updated on October 1, 2026 and Toilet Brain Games on September 29, 2026.

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