Category Stack vs Toilet Brain Games
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Category Stack
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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?
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.
- 21 quick brain games
- Daily rotating challenges
- Adaptive skill levels
- Offline play
- No ads
- Collectible cards
- Progress tracking
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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
Verdict
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
Both are free to download. Category Stack sells 7 one-off in-app purchases. Toilet Brain Games asks for nothing beyond the download.
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.
| Parameter | Category Stack | Toilet Brain Games |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 253 MB | 50 MB |
| Age rating | 4+ | 9+ |
| Developer | Batuhan UCA | Khawnan Management Solutions LLC |
In-app purchases
Category Stack
- Gold Pack 1$1.99
- Gold Pack 2$7.99
- No Ads Pack$7.99
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- Gold Pack 3$14.99
- Gold Pack 4$29.99
- Gold Pack 5$54.99
- Gold Pack 6$99.99
Toilet Brain Games
No in-app purchases
Questions
Is Category Stack free?
Is Toilet Brain Games free?
Do Category Stack or Toilet Brain Games have ads?
Which is updated more often, Category Stack or Toilet Brain Games?
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