Comparison

Elroi 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

Elroi

Embark on an adventurous expedition to conquer a new continent through strategic tower defense battles. Foster characters, collect powerful artifacts, and overcome enormous bosses across over 500 stages. Enjoy simple controls and character growth perfect for casual play.

Highlights
  • Over 500 stages across various territories
  • Enormous boss battles
  • Collect hidden artifacts with powerful effects
  • Over 200 unique characters
  • Easy controls and character growth
  • Occupation, defense, time attack modes
Features
Read full description

Super-simple battles! Go on an adventurous expedition to pioneer a new continent! Pioneer a new continent by fostering your characters and executing various strategies! Huge bosses and amazing relics are in front of you. ◆ Features - Perfect for Casual Play! Fun for all ages! - Various territories! Over 500 stages! - Occupation, defense, time attack, and boss battles! - Enormous bosses! - Collect hidden artifacts and activate powerful artifact effects! - Over 200 unique characters! - Easy controls and character growth! - And lastly, an unknown new continent waiting for you... Simple game rules that anyone can enjoy - even for beginners! Summon your characters with a simple touch, defeat monsters, and destroy enemy towers to discover amazing artifacts. Collect artifacts to grow your team, and hire and nurture powerful heroes and master characters.

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

Elroi4 screens
EF Defense4 screens

Verdict

The call

The clearest difference is review sentiment: Elroi at 82% against EF Defense's 34%. Elroi also leads on rating (4.8 vs 4.3) and ratings volume (917 vs 57). On price, update cadence, ads 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. Elroi 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

Elroi holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Elroi has 917 ratings behind it against 57, so its average is the more settled of the two. Written reviews point the same way: 82% of Elroi's written reviews are positive against 34% of EF Defense's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on November 3, 2026.

Scorecard3 real differences · 7 level
Elroi versus EF Defense: the parameters behind the verdict, then further details
ParameterElroiEF Defense
PriceFreeFree
Rating4.8 (917 ratings) — better4.3 (57 ratings)
Positive reviews82.2% of reviews — better34.1% of reviews
Number of ratings917 — better57
Update frequencyEvery 3 weeksEvery 3 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size200 MB237 MB
Age rating4+12+
DeveloperekgamesMANA GAME FACTORY PTE. LTD.

Customer experience

Elroi

All ratings916 ratings
Positive96.3%
Neutral1.6%
Negative2.1%
Written reviews269 reviews
Positive82.2%
Neutral3.7%
Negative14.1%

EF Defense

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

Bugs and requests

Elroi

Reported bugs

3 issues
  • Occasional crashes and login issues
  • Inconsistent performance on some devices
  • Bugs with certain hero abilities and relics

Requested features

4 requests
  • Add PVP mode for player-vs-player battles
  • Implement a skip/auto-clear function for repeated stages
  • Improve sorting and filtering options for heroes
  • Provide more detailed tooltips and explanations

EF Defense

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Elroi

One-time10
  • ELROI Package 101$2.99
  • ELROI Package 405$2.99
  • ELROI Package 301C$2.99
Show 7 more
  • ELROI Package 602$5.99
  • ELROI Package 406$8.99
  • ELROI Package 601$8.99
  • ELROI Package 1001C$9.99
  • ELROI Package 603$11.99
  • ELROI Package 1202C$11.99
  • ELROI Package 1003$26.99
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 Elroi free?
Elroi 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, Elroi or EF Defense?
Elroi is rated higher. Elroi averages 4.8 out of 5 from 917 ratings, while EF Defense averages 4.3 from 57 ratings.
Do Elroi or EF Defense have ads?
Both Elroi and EF Defense show ads.
Which is updated more often, Elroi or EF Defense?
Elroi ships an update every 3 weeks, and EF Defense every 3 weeks. Most recently, Elroi was updated on November 3, 2026 and EF Defense on November 3, 2026.

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