Think Faster vs UnderGuild
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- Visual processing games
- Reaction time challenges
- Rapid memorization training
- 10-second gameplay sessions
- Streak-based progression
- Daily statistics tracking
- Offline play
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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.
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.
- Tactical hero & mercenary placement
- Unit fusion and evolution
- Challenging boss fights
- Endless unit combination strategies
- Engaging offensive gameplay
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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
Verdict
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
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.
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.
Think Faster ships an update weekly, UnderGuild every 2 weeks. Both last shipped on October 24, 2026.
| Parameter | Think Faster | UnderGuild |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | 4.5 (79 ratings) |
| Positive reviews | 100.0% of reviews — better | 79.3% of reviews |
| Number of ratings | 6 | 79 — better |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 410 MB |
| Age rating | 4+ | 4+ |
| Developer | Emily Laguna | SeungHo Chung |
Customer experience
Think Faster
UnderGuild
In-app purchases
Think Faster
- Small Treat$0.99
- Big Treat$2.99
- STEAK NIGHT$4.99
UnderGuild
- Piggy Bank 1$0.99
- 80 Diamonds$0.99
- Event Package 1$0.99
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- 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









