Comparison

Diamond Fighting Online vs UnderAttack

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

Head to head
About

Diamond Fighting Online

Engage in strategic match-3 battles against monsters or players worldwide. Master diamond combinations to unleash powerful attacks, boost your defense, and gain health. Experience thrilling challenges with stunning graphics and smooth gameplay.

Highlights
  • Match-3 puzzle combat
  • PvP and PvE game modes
  • Special diamond combinations
  • Power-up mechanics
  • Hundreds of levels
  • Smooth graphics and effects
Features
Read full description

Diamond Fighting Online - A hot diamond game version, the opportunity for you to experience the fierce direct fighting match, the game is not only a place to show your strength, powerful attacks but also a place for intellectual competition, showing your great improvisation when interacting directly with rivals. Sign up for an account now, you will receive 2000 coins for free if it is a normal account and 3000 coins if using your Facebook account. Diamond Fighting Online brings you 2 game modes: - Play with the boss: In this mode, you will fight with different monsters at each level to get used, experience, and improve your attack and defense skills. - Play with other people: You will be immediately arranged with rivals at the same level, the opportunity for you to get acquainted and compete with rivals from around the world. Let's show your level when applying use the tactics and the appropriate attacks to quickly defeat opponents and end the game. HOW TO PLAY: - Swipe the screen, move the diamonds so that they form a vertical or horizontal row with at least 3 diamonds of the same color and make them explode. - If you eat 3 diamonds, that’s the normal attack that will hit the opponent with strength is 3. - If you eat 4 diamonds, it will attack the opponent with strength is 4 and you will have the opportunity to eat bombs to make the enemy’s armor decline very quickly. This technique is suitable for fighting opponents with large armor. - If you eat 5 diamonds you will fight an opponent with strength is 5 and will have the opportunity to eat diamonds 5. Diamond 5 will give lightning strike tactics to attack the monsters. - Diamond 5 L will give a lightning attack on the opponent. - 5 diamonds are eaten in the same row will explode with the same color to hit the opponent. - With that, when eating automatically: Greater than 14 diamonds will gain an additional 1 strength. Greater than 8 diamonds, you gain 10 armor. Greater than 5 diamonds, you will gain 20 health in the table. FEATURE: - Super nice graphics, smooth effects suitable for many different devices - Hundreds of levels with exciting and thrilling challenges are constantly updated - Simple game rules, suitable for many players Download Diamond Fighting Online to experience fascinating matches to compete with rivals around the world!

About

UnderAttack

Features
Read full description

Defend Earth from alien invasion! Command powerful starships, upgrade devastating weapons, and face epic boss battles across 10 chapters. Easy to learn, impossible to master. Join the fight and become the hero Earth needs! INTENSE SPACE COMBAT • Fast-paced tower defense shooter with smooth touch controls • Dynamic enemy spawn patterns keep you on your toes • Strategic buff system for tactical decisions during missions • Adaptive difficulty that adjusts to your skill level DEEP UPGRADE SYSTEM • Unlock 7 legendary captains with unique combat abilities • 5 weapon types: Cannon, Laser, Missile, Freeze Ray, Chain Lightning • Strategic temporary buffs: shields, damage boost, critical hits • Collect and upgrade 6 different starship classes • Each ship has unique stats and weapon slots EPIC BOSS BATTLES • 50 boss battles across 10 unique planets • Each boss has distinct attack patterns and strategies • Massive capital ships and alien motherships • Challenging boss stages with fewer but stronger enemies PROGRESSION & COLLECTION • 250 stages across 10 planets (25 levels per planet) • 7 legendary captains with unique abilities: - Nova: Damage specialist - Vex: Critical hit master - Iron: Defensive tank - Blaze: Speed demon - Phantom: Stealth striker - Zeus: Lightning lord - Omega: Ultimate commander • Strategic buff system with 15+ temporary upgrades • Data currency for tactical decisions during missions • Adaptive difficulty adjusts based on your performance WHAT PLAYERS SAY "Best mobile space shooter I've played this year!" - 5 stars "Perfect balance of challenge and casual fun" - 5 stars "Finally a shooter that doesn't force ads!" - 5 stars 100% FREE TO PLAY • Download and play completely free forever • Optional in-app purchases for faster progression • No forced ads - watch for bonus rewards only • Full offline play support - no internet required • Fair difficulty with adaptive assistance for struggling players PREMIUM FEATURES • Stunning particle effects and explosions • Original sci-fi soundtrack and sound design • Regular content updates with new chapters and captains • Cloud save - seamlessly play across devices • Optimized for all iOS devices and tablets • Portrait and landscape mode support • One-handed gameplay option PERFECT FOR • Fans of classic arcade space shooters and tower defense games • Players who love boss battles and strategy • Anyone seeking quick 5-10 minute gaming sessions • Collectors who enjoy unlocking characters and ships • Casual and hardcore gamers alike REGULAR UPDATES • New chapters released quarterly • Weekly balance updates based on player feedback • Monthly events with exclusive rewards • Active development team listening to community Join the battle today! Download Under Attack: Idle TD and become the hero Earth needs. Command your fleet, upgrade your arsenal, and prove you're the galaxy's greatest defender!

Screenshots

Diamond Fighting Online4 screens
UnderAttack4 screens

Verdict

The call

The clearest difference is ads: Diamond Fighting Online at none against UnderAttack's shown. Diamond Fighting Online also leads on iOS requirement (9.0 vs 16.4). On price, update cadence, in-app purchases and device support 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. Diamond Fighting Online sells 3 one-off in-app purchases and UnderAttack sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Diamond Fighting Online ships an update every 8 months, UnderAttack every 4 months. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Diamond Fighting Online versus UnderAttack: the parameters behind the verdict, then further details
ParameterDiamond Fighting OnlineUnderAttack
PriceFreeFree
Rating4.8 (45 ratings) — better—
Positive reviews98.8% of reviews—
Number of ratings45 — better—
Update frequencyEvery 8 monthsEvery 4 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better16.4
Further details — not scored
Size68 MB88 MB
Age rating4+4+
DeveloperThuong DinhOGULCAN SACLI

In-app purchases

3 purchases

Diamond Fighting Online

One-time3
  • Package 20,000Coins$0.99
  • Package 50,000Coins$1.99
  • Package 150,000Coins$4.99
9 purchases

UnderAttack

One-time9
  • 50 Gem$0.99
  • 130 Gem$1.99
  • Starter Pack$2.99
Show 6 more
  • Adventurer Bundle$4.99
  • 350 Gem$4.99
  • 650 Gem$7.99
  • Veteran Pack$9.99
  • Dreadnought$9.99
  • 1500 Gem$14.99

Questions

Is Diamond Fighting Online free?
Diamond Fighting Online is free to download, with in-app purchases available.
Is UnderAttack free?
UnderAttack is free to download, with in-app purchases available.
Do Diamond Fighting Online or UnderAttack have ads?
UnderAttack shows ads; Diamond Fighting Online does not.
Which is updated more often, Diamond Fighting Online or UnderAttack?
Diamond Fighting Online ships an update every 8 months, and UnderAttack every 4 months. Most recently, Diamond Fighting Online was updated on November 6, 2026 and UnderAttack on October 30, 2026.

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