Comparison

Think Faster vs UnderGuild

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

Head to head
About

Think Faster

Engage in quick brain training games designed to enhance visual processing, reaction time, and memory. Perfect for short breaks, these games offer a fun and effective way to sharpen cognitive skills.

Highlights
  • Visual processing games
  • Reaction time challenges
  • Rapid memorization training
  • 10-second gameplay sessions
  • Streak-based progression
  • Daily statistics tracking
  • Offline play
Read full description

Think Faster is a collection of brain training games designed to sharpen your visual processing, reaction time, and rapid memorization skills—all in 10 seconds or less. GAMES • Focus Grid: Tap numbers in order as fast as possible. Uses Schulte table techniques to train peripheral vision and pattern recognition. • Flash Recall: Memorize digit sequences shown for just 0.5 seconds, then enter them back. Trains rapid visual processing and subconscious memory. PERFECT FOR SHORT BREAKS Most games take 10 seconds or less to complete. Pick up and play whenever, wherever—waiting in line, between tasks, or during a quick break. STREAK-BASED PROGRESSION Flash Recall uses a streak system where perfect rounds keep you going, building momentum. One mistake breaks the streak. Can you beat your best? TRACK YOUR PROGRESS • Daily stats showing games played, current streak, and focus time • Best scores for each difficulty level • Save your favorite game modes for quick access SMART DESIGN These aren't just random games—they're built on real cognitive training principles: • Focus Grid teaches you to use peripheral vision instead of scanning, dramatically improving speed • Flash Recall's quick flash timing prevents overthinking, training your subconscious processing • Multiple difficulty levels let you progress at your own pace FEATURES • Two core games with multiple difficulty levels • Quick 10-second gameplay sessions • Streak tracking and personal bests • Daily statistics • Dark mode optimized • No ads, no subscriptions • Completely offline after download Created by an indie developer who uses these games personally for training visual processing and reaction time. Simple, focused, effective.

About

UnderGuild

Engage in fast-paced strategy battles, commanding heroes and mercenaries against monster waves. Master tactical placement, unit fusion, and epic boss fights to achieve victory. Your strategic decisions are key to overcoming relentless challenges.

Highlights
  • Tactical hero & mercenary placement
  • Unit fusion and evolution
  • Challenging boss fights
  • Endless unit combination strategies
  • Engaging offensive gameplay
Features
Read full description

Gather heroes and mercenaries for an adventure beneath the city. In UnderGuild: Offense, choose your mercenaries and merge them to build your own battle team. • Recruit and merge: Collect different mercenaries and combine them to strengthen your team. • Explore the sewers: Venture underground and challenge monsters and bosses. • Customize your sewers: Make your underground space your own. • Co-op battles: Take on challenges with a partner. • More ways to play: Try Pigeon Cleanup and Slime Punching Bag modes. Lead your little hero and mercenary team into battle! Support: libertydust@gmail.com

Screenshots

Think Faster4 screens
UnderGuild4 screens

Verdict

The call

The clearest difference is rating: Think Faster at 5.0 against UnderGuild's 4.5. Think Faster also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). UnderGuild's advantage is ratings volume (79 vs 6) and iOS requirement (13.0 vs 26.0). On price, update cadence, in-app purchases 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. Think Faster sells 3 one-off in-app purchases and UnderGuild sells 19 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Think Faster holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: UnderGuild has 79 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 100% of Think Faster's written reviews are positive against 79% of UnderGuild's.

UpkeepUpdate frequency

Think Faster ships an update weekly, UnderGuild every 2 weeks. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
Think Faster versus UnderGuild: the parameters behind the verdict, then further details
ParameterThink FasterUnderGuild
PriceFreeFree
Rating5.0 (6 ratings) — better4.5 (79 ratings)
Positive reviews100.0% of reviews — better79.3% of reviews
Number of ratings679 — better
Update frequencyWeekly — betterEvery 2 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.013.0 — better
Further details — not scored
Size18 MB410 MB
Age rating4+4+
DeveloperEmily LagunaSeungHo Chung

Customer experience

Think Faster

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

UnderGuild

All ratings79 ratings
Positive87.3%
Neutral2.5%
Negative10.1%
Written reviews92 reviews
Positive79.3%
Neutral6.5%
Negative14.1%

In-app purchases

3 purchases

Think Faster

One-time3
  • Small Treat$0.99
  • Big Treat$2.99
  • STEAK NIGHT$4.99
19 purchases

UnderGuild

One-time19
  • Piggy Bank 1$0.99
  • 80 Diamonds$0.99
  • Event Package 1$0.99
Show 16 more
  • Normal Pack 2$1.99
  • Daily Shop Slot Expansion 1$1.99
  • Str_Random_Skin$1.99
  • Normal Pack 3$2.99
  • item_pack_all_1$4.99
  • Starter Pack$5.49
  • Add 3x speed$7.99
  • Season_Superpass_1$7.99
  • Unit_Legend$8.99
  • Hero_Legend$8.99
  • Hero_Pass_1$9.99
  • newhero_1_1$9.99
  • Auto Pack$10.99
  • Remove Ads$10.99
  • Legendary Hero Level 2$10.99
  • Season_Hyperpass_1$18.99

Questions

Is Think Faster free?
Think Faster is free to download, with in-app purchases available.
Is UnderGuild free?
UnderGuild is free to download, with in-app purchases available.
Which has better reviews, Think Faster or UnderGuild?
Think Faster is rated higher. Think Faster averages 5.0 out of 5 from 6 ratings, while UnderGuild averages 4.5 from 79 ratings.
Do Think Faster or UnderGuild have ads?
UnderGuild shows ads; Think Faster does not.
Which is updated more often, Think Faster or UnderGuild?
Think Faster ships an update weekly, and UnderGuild every 2 weeks. Most recently, Think Faster was updated on October 24, 2026 and UnderGuild on October 24, 2026.

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