Comparison

Castle Defender vs EF Defense

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

Head to head
About

Castle Defender

Engage in strategic tower defense by tapping to shoot arrows and unleash powerful magic. Summon and upgrade a team of heroes to defend your kingdom's castle against waves of monsters across various maps and challenging levels. Play offline and earn rewards to strengthen your defenses.

Highlights
  • Tap to shoot and defend
  • Summon and upgrade 30+ heroes
  • Use magic ultimates like freeze and tornado
  • Defend across 5 unique maps
  • Over 250 challenging levels
  • Offline gameplay
Features
Read full description

Defend your castle of royal kingdom in the best TD game - castle defense games! Defense massive waves of enemies to protect your castle in CASTLE DEFENDER: Hero Idle Defense TD - tower defense, castle defense games! Summon all strategic tower defense strategy! Use your archery skills as you lead an idle defense heroes team, magic bow and more, in the #1 castle defender! Castle Defender: Hero Idle Defense TD is one of great idle defender tower defense games that challenges skilled players like you! ARE YOU READY TO COME UP WITH THE BEST IDLE DEFENDER FOR YOUR HERO DEFENSE TO FIGHT WITH ENEMIES AND DEFENDER YOUR CASTLE TD ATTACK? - Defense with the ultimate bow by TAPPING THE SCREEN. - Throw freeze, tornado to the zombies which attack your hero defense kingdom speed - Don’t miss using your heroes great skills during the castle td battles! - UPGRADE and equip for 30+ heroes who you summoned before starting a new level of hero defense games - Prepare enough hero defense energy and strategy for your castle defence hero before starting a fight in tower defense games by offline. Just like players defender their castle td in the best epic idle defense games, you have to defend the castle of your kingdom in this castle defense games! Play this idle defender offline game with fun idle tower defense offline TD games! Try out all modes and challenge your limits! When you win, you can have more gems, gold to upgrade your castle and your idle defender heroes to defend the castle. FUNCTION: - Defend your castle in 5 maps such as: Forest, Temple, Sea, Cave and Labyrinth - 250+ fun LEVELS from Normal, Hard, Hell, Expert, Master and Hell - With the help of ultimates like: tornado, freeze... - 30+ heroes to summon and upgrade in castle defence - Lots of different monsters running wild, each with their own special attacks of castle defender! - Many hero defense choosing upgrade for tower defense strategy td games - warrior, witch, knight, bower... Become an idle defense hero and rush into protecting your castle from the all enemies. Get ready for the most epic castle defense battles of all time to defense castle - td games - Castle Defender: Hero Idle Defense TD! Connect with us: - Fanpage: https://www.facebook.com/CastleDefenderTD/ - Twitter: twitter.com/UnimobGames - Email: support@unimobgame.com

About

EF Defense

Defend the continent of Akaros by rallying unique heroes and powerful protectors. Engage in diverse combat styles beyond traditional defense, including conquest and arena battles, against a variety of challenging enemies.

Highlights
  • Unique heroes from various tribes
  • Diverse battlefields with specialized traps
  • Powerful Protectors with game-changing skills
  • Multiple combat modes: Frontier, Arena, Grand Arena, Tower of Trials
  • Variety of unique enemy types and attack patterns
Read full description

The Darkness surges upon the continent of Akaros, the land of abundance. Rally the Heroes of various tribes and form a strong defense for the showdown! 1. Unique Heroes of various tribes Heroes of varying tribes have gathered to defend the Akaros continent! Train unique and powerful Heroes to unlock their hidden abilities! 2. Diverse battlefields and powerful, specialized traps Leave behind the simple, boring backgrounds and collect growing maps that assist you in protecting the kingdom! A monster from beyond the ice wall will roar, and terrorize enemies and the arm of a god will appear through a portal to push enemies away, aiding you in your fight! 3. Protectors that protect the battlefield with powerful skills! Despite their cuteness, Protectors aren’t just the mascots, but possess the power to turn the tide of a battle! Collect Protectors that hatch from tiny eggs, take control of the battlefield, and protect their allies! 4. This isn’t just about Defense! Ditch the traditional model of just blocking for defense and experience all sorts of different styles of combat! The Frontier, to conquest the enemy bases beyond the defense that only protects the kingdom! The Arena, to win the honorable combat against powerful opponents for the position of the strongest! The Grand Arena, to fight across three different battlefields to claim victory! The Tower of Trials, to climb floor by floor, defeating the guardians of each stage! 5. A variety of unique enemies! Enemies, that only walk or fly from one side to the other? Too easy! [Frog Defense], where you face off against enemies that fall from the sky and skip floors. [Goblin Defense], where enemies appear on random floors through portals. [Ghost Elimination], where you face off against enemies that attack both the earth and the air. ■ Customer Support - You can receive more detailed guide by indicating your ID when sending us the inquiry. - The basic information are indicated automatically in the inquiry mail if sent via 1:1 Inquiry menu in Game Setting screen. - Customer Support: cs@managf.com - Official Facebook : http://www.facebook.com/efdefenseglobal/ ■ Note - By downloading or installing this app, you are considered to have agreed to the terms and conditions of Mana Game Factory. (Terms of Use & Privacy Policy: http://policy.managf.com/policy.html) - This game contains in-app purchases of items to help you with the game. - In-app purchases can be restricted through your device settings. For more information, please visit https://support.apple.com/ko-kr/HT204030.

Screenshots

Castle Defender3 screens
EF Defense4 screens

Verdict

The call

The clearest difference is ads: Castle Defender at none against EF Defense's shown. Castle Defender also leads on review sentiment (63% vs 34%) and rating (4.5 vs 4.3). On price, ratings volume, update cadence and in-app purchases 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. Castle Defender sells 10 one-off in-app purchases and EF Defense sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Castle Defender holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 124 and 57 respectively. Written reviews point the same way: 63% of Castle Defender's written reviews are positive against 34% of EF Defense's.

UpkeepUpdate frequency

Castle Defender ships an update every 2 weeks, EF Defense every 3 weeks. Both last shipped on November 3, 2026.

Scorecard3 real differences · 7 level
Castle Defender versus EF Defense: the parameters behind the verdict, then further details
ParameterCastle DefenderEF Defense
PriceFreeFree
Rating4.5 (124 ratings) — better4.3 (57 ratings)
Positive reviews62.7% of reviews — better34.1% of reviews
Number of ratings124 — better57
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size307 MB237 MB
Age rating9+12+
DeveloperUNIMOB VIET NAM COMPANY LIMITEDMANA GAME FACTORY PTE. LTD.

Customer experience

Castle Defender

All ratings124 ratings
Positive89.5%
Neutral2.4%
Negative8.1%
Written reviews51 reviews
Positive62.7%
Neutral7.8%
Negative29.4%

EF Defense

All ratings58 ratings
Positive81.0%
Neutral5.2%
Negative13.8%
Written reviews82 reviews
Positive34.1%
Neutral6.1%
Negative59.8%

Bugs and requests

Castle Defender

Reported bugs

14 issues
  • Purchases not activating
  • Archers off-screen and unkillable
  • Ad viewing not working
  • Event activation issues
  • File backup not working
Show 9 more
  • Progression bug in gold challenge
  • Chests not purchasable in shop
  • Gear not changing
  • New content not unlocking
  • Lost hero after merging
  • App crashes
  • No tutorial
  • Buggy buttons
  • Ads redirecting unexpectedly

Requested features

6 requests
  • Add guild and chat
  • Add 2x/3x speed boost
  • Lower gold price on crafting
  • Add enemy collection
  • More levels
Show 1 more
  • Add German language option

EF Defense

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Castle Defender

One-time10
  • Gem Pack 1$0.99
  • Gold Pack 1$0.99
  • Super Sale Pack$0.99
Show 7 more
  • Gold Pack 2$1.99
  • Starter Pack$2.99
  • Gem Gift Pack 10$2.99
  • Gold Pack 3$4.99
  • Battle Pass Premium$9.99
  • Gem Pack 4$9.99
  • Gold Pack 4$9.99
10 purchases

EF Defense

One-time10
  • EF Pack 1$0.99
  • Defense Pack 1$0.99
  • EF Pack 2$1.99
Show 7 more
  • Defense Pack 3$2.99
  • EF Pack 4$4.99
  • Defense Pack 4$4.99
  • EF Pack 5$9.99
  • Defense Pack 5$9.99
  • EF Pack 7$19.99
  • Defense Pack 9$29.99

Questions

Is Castle Defender free?
Castle Defender is free to download, with in-app purchases available.
Is EF Defense free?
EF Defense is free to download, with in-app purchases available.
Which has better reviews, Castle Defender or EF Defense?
Castle Defender is rated higher. Castle Defender averages 4.5 out of 5 from 124 ratings, while EF Defense averages 4.3 from 57 ratings.
Do Castle Defender or EF Defense have ads?
EF Defense shows ads; Castle Defender does not.
Which is updated more often, Castle Defender or EF Defense?
Castle Defender ships an update every 2 weeks, and EF Defense every 3 weeks. Most recently, Castle Defender was updated on November 3, 2026 and EF Defense on November 3, 2026.

Other comparisons