# Stack & Defend vs Train Attack

Stack & Defend and Train Attack both sit at 4.1 stars, but that hides the real split: 51% of Stack & Defend's written reviews are positive against 11% of Train Attack's. Stack & Defend also leads on in-app purchases (none vs 16) and iOS requirement (13.0 vs 15.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Train Attack sells 16 one-off in-app purchases. Stack & Defend asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.1 for Stack & Defend against 4.0 for Train Attack. Both are backed by a comparable volume of ratings — 382 and 1K respectively. Written reviews are what separate them: 51% of Stack & Defend's written reviews are positive against 11% of Train Attack's.

Stack & Defend ships an update fortnightly, Train Attack every 11 days. The most recent releases landed on September 25, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Stack & Defend | Train Attack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (382 ratings)](https://appshunter.io/ios/app/stack-and-defend/id6741839843/reviews)** | [4.0 (1K ratings)](https://appshunter.io/ios/app/train-attack-merge-war/id6747774853/reviews) |
| Number of ratings | 382 | **1K** |
| Positive reviews | **50.7% of reviews** | 11.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 11 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 181 MB | 283 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [晓莹 黄](https://appshunter.io/developer/1784736578) | [MAD PIXEL](https://appshunter.io/developer/1581972745) |

## What reviewers say

### Stack & Defend

[App page](https://appshunter.io/ios/app/stack-and-defend/id6741839843)

Engage in thrilling tower defense battles by strategically stacking and merging blocks to build your fortress. Unleash diverse attack modes and powerful combos to defeat ruthless bosses and conquer the battlefield.

**Highlights:** Super Free Building, Stacking and merging blocks, Diverse Attack Modes, Ruthless Opponents, Frenzied Combos, Timed Battles

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Satisfying sound effects
- 👍 Fun game

**What reviewers complain about**

- 🐛 Towers disappear and take crystals
- 🐛 Ads too long and can't be skipped
- 🐛 Difficulty spike in early stages

**Reported bugs**

- Towers not placing properly, taking crystals
- Unwanted towers appearing on the board

**Requested features**

- Remove ad-placed towers that take up space
- Improve tower placement and movement controls


### Train Attack

[App page](https://appshunter.io/ios/app/train-attack-merge-war/id6747774853)

Command a powerful battle train in this idle merge game. Merge weapons and upgrade your convoy to blast through enemies and bosses. Build your railroad empire and explore a global battlefield.

**Highlights:** Merge combat units and weapons, Epic 2D shooting action, Upgrade and build your train base, Face giant bosses and nuclear attacks, Explore diverse global battlefields, Play solo or with friends, Collect daily rewards and bonuses

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

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 110 Diamonds | $0.99 | one-time |
| Starter Pack | $1.99 | one-time |
| Battle Pass Premium | $2.99 | one-time |
| NoAds + Bonus | $3.99 | one-time |
| NoAds | $3.99 | one-time |
| Conductor Pack | $4.99 | one-time |
| Gold Dungeon Pass | $4.99 | one-time |
| 600 Diamonds | $4.99 | one-time |
| Rail King Bundle | $9.99 | one-time |
| 1 300 Diamonds | $9.99 | one-time |
| VIP Bundle | $9.99 | one-time |
| Monthly Pass Forever | $14.99 | one-time |
| All In One Bundle | $14.99 | one-time |
| 2 800 Diamonds | $19.99 | one-time |
| 7 500 Diamonds | $49.99 | one-time |
| 16 000 Diamonds | $99.99 | one-time |

**What reviewers like**

- 🚀 Fun and action-packed game
- 👍 Enjoyable gameplay

**What reviewers complain about**

- 🙁 Too many ads
- 🐛 Bugs and glitches
- 💰 Paid 'no ads' feature not working

**Reported bugs**

- Game freezes on wave 5 stage 3
- Enemies disappear halfway through levels

**Requested features**

- Reduce the number of ads
- Fix bugs and glitches


## Frequently asked questions

### Is Stack & Defend free?

Stack & Defend is free to download, with no in-app purchases.

### Is Train Attack free?

Train Attack is free to download, with in-app purchases available.

### Which has better reviews, Stack & Defend or Train Attack?

Stack & Defend is rated higher. Stack & Defend averages 4.1 out of 5 from 382 ratings, while Train Attack averages 4.0 from 1K ratings.

### Do Stack & Defend or Train Attack have ads?

Both Stack & Defend and Train Attack show ads.

### Which is updated more often, Stack & Defend or Train Attack?

Stack & Defend ships an update fortnightly, and Train Attack every 11 days. Most recently, Stack & Defend was updated on September 25, 2026 and Train Attack on October 13, 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.*