Comparison

Stack & Defend vs Train Attack

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

Head to head
About

Stack & Defend

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
Read full description

Super Fun Tower Defense, Timed Battles, Unlock Your Potential, Strategize, Conquer the Battlefield! 1.Super Free Building: Build your own fortress by stacking and merging blocks. 2.Diverse Attack Modes: Freeze, mines, tap, and smash! 3.Ruthless Opponents: Unstoppable wild bosses are on the attack—stop them! 4.Frenzied Combos: Diverse blocks—stack them up to trigger powerful chain reactions. 5.Adrenaline Rush! Exhilarating Are you ready to lead your team to victory?

About

Train Attack

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
Read full description

Merge Battle Trains: Epic Idle War Adventure Welcome to a 2D world where steel beasts ride the rails and rain fire upon their enemies! In this epic idle merge game, you are the commander of a powerful battle train. Assemble cars, merge weapons, and upgrade your armored convoy into an unstoppable force. The war has begun. Are you ready to fight, shoot, and win? GAMEPLAY THAT KEEPS YOU HOOKED Tap, merge, and upgrade to build your train into a deadly shooter machine. Combine guns, turrets, and combat gear to increase firepower. Then roll your train down the railroad, blasting through waves of enemies and massive bosses in thrilling battles. Every part of your train matters — from the freight cars you load to the guns you place. Create the best strategy to survive longer and achieve higher scores. TOP FEATURES Merge combat units Start with basic guns Merge them to create stronger, more advanced firepower Discover special and unique combinations to boost your train’s attack Epic shooting action Enjoy satisfying shooter gameplay in a fun, simplified 2D style Feel the blast as you hit enemies, destroy tanks, and tear through waves Upgrade and build your base Unlock new trains, weapons, and armor Expand your railroad empire Grow from a small station to a massive military base Nuclear explosions & boss fights Face giant bosses and enemy tanks in intense battles Use nuclear attacks and powerful guns to dominate Keep your train simulator running at full speed to survive Explore the global battlefield Travel through deserts, cities, and icy lands Visit new stations and train locations Fight on different tracks and become the best rail commander PLAY SOLO OR WITH FRIENDS Take on missions in single-player levels Or connect with friends and partners to complete special objectives Compare scores and see who commands the best battle train DAILY REWARDS & BONUSES Log in daily to collect free rewards Open packs of weapons and gear Earn currency and upgrade your army faster A GAME OF STRATEGY AND SPEED This isn’t just about tapping and watching explosions. You’ll need smart planning, fast reactions, and the ability to build a train that’s ready for any war. Think ahead, choose wisely, and control every shot fired from your guns. Are you the commander this world needs? BECOME A MERGE MASTER Crush enemies in the most awesome train simulator ever Rise through levels and unlock giant battle engines Command a growing army of steel and firepower Rule the global battlefield and earn your place as a legend Whether you love idle games, shooting games, or unique merge experiences — this one brings it all on tracks. This is not just a game, it’s a thrilling adventure across rails where you create, learn, and destroy. No complex controls, just pure fun, explosive action, and strategic depth! Ready to take command? Start building your dream train army and jump into this epic ride today!

Screenshots

Stack & Defend4 screens
Train Attack4 screens

Verdict

The call

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.

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Stack & Defend versus Train Attack: the parameters behind the verdict, then further details
ParameterStack & DefendTrain Attack
PriceFreeFree
Rating4.1 (382 ratings) — better4.0 (1K ratings)
Positive reviews50.7% of reviews — better11.4% of reviews
Number of ratings3821K — better
Update frequencyFortnightlyEvery 11 days — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size181 MB283 MB
Age rating17+12+
Developer晓莹 黄MAD PIXEL

Customer experience

Stack & Defend

All ratings382 ratings
Positive76.4%
Neutral7.6%
Negative16.0%
Written reviews136 reviews
Positive50.7%
Neutral15.4%
Negative33.8%

Train Attack

All ratings1,008 ratings
Positive75.3%
Neutral4.3%
Negative20.4%
Written reviews386 reviews
Positive11.4%
Neutral11.1%
Negative77.5%

User reviews

Stack & Defend

From 382 App Store ratings

What we love

  • 🚀 Satisfying sound effects
  • 👍 Fun game

Room to improve

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

Train Attack

From 1K App Store ratings

What we love

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

Room to improve

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

Bugs and requests

Stack & Defend

Reported bugs

2 issues
  • Towers not placing properly, taking crystals
  • Unwanted towers appearing on the board

Requested features

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

Train Attack

Reported bugs

2 issues
  • Game freezes on wave 5 stage 3
  • Enemies disappear halfway through levels

Requested features

2 requests
  • Reduce the number of ads
  • Fix bugs and glitches

In-app purchases

None

Stack & Defend

No in-app purchases

16 purchases

Train Attack

One-time16
  • 110 Diamonds$0.99
  • Starter Pack$1.99
  • Battle Pass Premium$2.99
Show 13 more
  • NoAds + Bonus$3.99
  • NoAds$3.99
  • Conductor Pack$4.99
  • Gold Dungeon Pass$4.99
  • 600 Diamonds$4.99
  • Rail King Bundle$9.99
  • 1 300 Diamonds$9.99
  • VIP Bundle$9.99
  • Monthly Pass Forever$14.99
  • All In One Bundle$14.99
  • 2 800 Diamonds$19.99
  • 7 500 Diamonds$49.99
  • 16 000 Diamonds$99.99

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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