# Think Faster vs UnderGuild

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.

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.

## The numbers

| Metric | Think Faster | UnderGuild |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/think-faster/id6742453480/reviews)** | [4.5 (79 ratings)](https://appshunter.io/ios/app/underguild-offense/id6752882356/reviews) |
| Number of ratings | 6 | **79** |
| Positive reviews | **100.0% of reviews** | 79.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 410 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Emily Laguna](https://appshunter.io/developer/1568719083) | [SeungHo Chung](https://appshunter.io/developer/1626940418) |

## What reviewers say

### Think Faster

[App page](https://appshunter.io/ios/app/think-faster/id6742453480)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Treat | $0.99 | one-time |
| Big Treat | $2.99 | one-time |
| STEAK NIGHT | $4.99 | one-time |


### UnderGuild

[App page](https://appshunter.io/ios/app/underguild-offense/id6752882356)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Piggy Bank 1 | $0.99 | one-time |
| 80 Diamonds | $0.99 | one-time |
| Event Package 1 | $0.99 | one-time |
| Normal Pack 2 | $1.99 | one-time |
| Daily Shop Slot Expansion 1 | $1.99 | one-time |
| Str_Random_Skin | $1.99 | one-time |
| Normal Pack 3 | $2.99 | one-time |
| item_pack_all_1 | $4.99 | one-time |
| Starter Pack | $5.49 | one-time |
| Add 3x speed | $7.99 | one-time |
| Season_Superpass_1 | $7.99 | one-time |
| Unit_Legend | $8.99 | one-time |
| Hero_Legend | $8.99 | one-time |
| Hero_Pass_1 | $9.99 | one-time |
| newhero_1_1 | $9.99 | one-time |
| Auto Pack | $10.99 | one-time |
| Remove Ads | $10.99 | one-time |
| Legendary Hero Level 2 | $10.99 | one-time |
| Season_Hyperpass_1 | $18.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*