# Train Invasion vs Brain Evolution!

The clearest difference is review sentiment: Brain Evolution! at 100% against Train Invasion's 25%. Brain Evolution! also leads on rating (5.0 vs 3.0) and ads (none vs shown). Train Invasion's advantage is in-app purchases (none vs 7) and iOS requirement (13.0 vs 15.0). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. Brain Evolution! sells 7 one-off in-app purchases. Train Invasion asks for nothing beyond the download.

Brain Evolution! holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews point the same way: 25% of Train Invasion's written reviews are positive against 100% of Brain Evolution!'s.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Train Invasion | Brain Evolution! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (5 ratings)](https://appshunter.io/ios/app/train-invasion/id6751881247/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/brain-evolution/id6758364652/reviews)** |
| Number of ratings | **5** | 2 |
| Positive reviews | 25.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 201 MB | 243 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kiwert](https://appshunter.io/developer/1426743821) | [Tyler Powell](https://appshunter.io/developer/1872564191) |

## What reviewers say

### Train Invasion

[App page](https://appshunter.io/ios/app/train-invasion/id6751881247)

Defend a runaway train from relentless zombie hordes in this action-packed defense game. Upgrade your character with powerful perks and unique builds to survive increasingly challenging waves and deadly boss battles. Every run offers a new roguelite experience with stylized visuals and immersive gameplay.

**Highlights:** Dynamic zombie wave battles, Perk-based upgrade system, Roguelite progression, Stylized visuals, Train defense gameplay, Boss battles

**Features:** macOS Compatibility

**In-app purchases:** none


### Brain Evolution!

[App page](https://appshunter.io/ios/app/brain-evolution/id6758364652)

Tap your way to infinite brainpower in this chaotic idle clicker. Earn Brains with every tap, boost your power with upgrades, and grow your empire even while offline. Enjoy endless progression and satisfying tap effects in this addictive adventure.

**Highlights:** Endless upgrades, Daily spin wheel, Auto Brain generation, Offline rewards, Satisfying tap effects, Casual and hardcore play

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Brainrot Pack Small | $0.99 | one-time |
| Brainrot Pack Medium | $3.99 | one-time |
| Skibidi Power Pack | $7.99 | one-time |
| Sigma Power Pack | $14.99 | one-time |
| Ultimate Brainrot Pack | $29.99 | one-time |
| Rizz God Pack | $49.99 | one-time |
| Omega Brainrot Pack | $99.99 | one-time |


## Frequently asked questions

### Is Train Invasion free?

Train Invasion is free to download, with no in-app purchases.

### Is Brain Evolution! free?

Brain Evolution! is free to download, with in-app purchases available.

### Which has better reviews, Train Invasion or Brain Evolution!?

Brain Evolution! is rated higher. Train Invasion averages 3.0 out of 5 from 5 ratings, while Brain Evolution! averages 5.0 from 2 ratings.

### Do Train Invasion or Brain Evolution! have ads?

Train Invasion shows ads; Brain Evolution! does not.

### Which is updated more often, Train Invasion or Brain Evolution!?

Train Invasion ships an update every 2 months, and Brain Evolution! every 2 months. Most recently, Train Invasion was updated on November 5, 2026 and Brain Evolution! on October 31, 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.*