Comparison

Backpack Tower Defense vs Boing Ninja

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

Head to head
About

Backpack Tower Defense

A strategic game where organizing your backpack is key to defending against monster waves. Merge heroes and weapons to create powerful combinations and defeat bosses in fast-paced battles.

Highlights
  • Innovative backpack management
  • Tower defense strategy
  • Merge heroes and weapons
  • Epic boss fights
  • Roguelike builds
  • Idle RPG progression
Features
Read full description

Backpack Tower Defense: Epic Merge Strategy Welcome to Backpack Tower Defense, the ultimate mix of inventory management and idle RPG. In this strategic experience, your Backpack layout determines your power. Master Your Tower Defense Strategy Defend against monster waves with smart positioning. Every item placed inside defines the outcome of the battle. Build the perfect defense by organizing your Backpack space to maximize hero abilities and weapon power. Merge Heroes & Weapons Merge heroes and gear to unlock elite defenders. Create powerful weapon combinations that crush massive bosses. In Backpack Tower Defense, smart merging turns a weak squad into an unstoppable force. Game Features: - Innovative Backpack management mechanics. - Fast-paced battles and epic boss fights. - Merge weapons to evolve. - Roguelike builds and idle RPG progression. Download Backpack Tower Defense today and build your ultimate defense!

About

Boing Ninja

Defend a peaceful forest from monster waves with a squad of banana-throwing ninja monkeys. Experience thrilling roguelike tower defense with unique pinball-style banana attacks and random skill upgrades. Enjoy idle-style, offline play across dynamic seasonal stages.

Highlights
  • Banana-throwing ninja monkey defense
  • Roguelike survival challenges
  • Random skill upgrades and combos
  • Pinball-style projectile action
  • Idle-style and offline play
  • Dynamic stages across 4 seasons
Features
Read full description

A thrilling survival tower defense with cute, banana-throwing ninja monkeys! A terrifying monster army is swarming the peaceful forest! Take your position on the bridge with your brave monkey squad. Hold back endless waves of enemies and survive to the end in this thrilling roguelike challenge. Wait, a ninja throwing bananas instead of shurikens?! Don't underestimate them! Watch the bananas bounce around like a pinball, striking multiple enemies at once. With lucky upgrades, the destructive power of these bananas goes beyond your imagination. ◆ Key Features of Boing Ninja ◆ ► The Ultimate Ninja Defense & Survival Unleash a storm of bananas on the monsters rushing under the bridge! Experience the best tower defense (TD) action as you test your limits and survival skills against impossible odds. ► Lucky Spin & Random Skill Combos Level up and give the skill slot a spin! Just like a lucky roulette, choose from 3 random abilities every time you level up. Combine countless skills to build your own overpowered banana skill tree. ► Flashy & Satisfying Pinball Action They might start as ordinary bananas, but they constantly evolve! From flaming bananas to laser bananas, watch them ricochet in chaotic pinball-style action, delivering a satisfying impact that fills the screen. ► Easy Idle-Style & Offline Play No complex controls needed! Enjoy a seamless, idle-friendly experience where your monkeys keep fighting. Whether you are online or offline, this is the perfect time-killer for any defense fan. ► Dynamic Stages Across 4 Seasons From lush green forests to freezing snowstorms! Overcome relentless challenges by defeating new and powerful monsters unique to each stage. Download Boing Ninja now, spin your way to victory, and become the ultimate Banana Master! ----- - Support: support@neptunecompany.kr - Terms of Service: https://neptunecompany.kr/gameterms - Privacy Policy: https://neptunecompany.kr/gameprivacy

Screenshots

Backpack Tower Defense4 screens
Boing Ninja4 screens

Verdict

The call

The clearest difference is rating: Boing Ninja at 4.6 against Backpack Tower Defense's 1.0. Boing Ninja also leads on ads (none vs shown) and ratings volume (156 vs 1). On price, update cadence, in-app purchases and monetization model 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. Backpack Tower Defense sells 8 one-off in-app purchases and Boing Ninja sells 18 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Boing Ninja holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Boing Ninja has 156 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Backpack Tower Defense ships an update weekly, Boing Ninja every 5 days. Both last shipped on October 25, 2026.

Scorecard4 real differences · 6 level
Backpack Tower Defense versus Boing Ninja: the parameters behind the verdict, then further details
ParameterBackpack Tower DefenseBoing Ninja
PriceFreeFree
Rating1.0 (1 ratings)4.6 (156 ratings) — better
Positive reviews—55.6% of reviews
Number of ratings1156 — better
Update frequencyWeeklyEvery 5 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size175 MB263 MB
Age rating4+4+
DeveloperNgo NguyenNeptune Company

In-app purchases

8 purchases

Backpack Tower Defense

One-time8
  • Spark Gems$1.99
  • Boost Gems$3.99
  • Remove ads$4.99
Show 5 more
  • Starter Pack$4.99
  • Power Gems$7.99
  • Elite Gems$17.99
  • Master Gems$34.99
  • Infinity Gems$79.99
18 purchases

Boing Ninja

One-time18
  • Revive Coin 1$0.99
  • Gold 1$0.99
  • Gem 1$0.99
Show 15 more
  • Piggy Bank Gem$1.99
  • Energy 2$2.99
  • Gem 2$2.99
  • Remove Inter Ads$2.99
  • Event Tower Package$2.99
  • Gold 2$3.99
  • Event Key Package$3.99
  • Speed Boost Package$5.99
  • VIP Package 1$8.99
  • Gem 3$10.99
  • Gold 3$11.99
  • Event Skin Package$11.99
  • Remove Reward Ad$12.99
  • Stage Pass 1$13.99
  • Monster Kill Pass 1$18.99

Questions

Is Backpack Tower Defense free?
Backpack Tower Defense is free to download, with in-app purchases available.
Is Boing Ninja free?
Boing Ninja is free to download, with in-app purchases available.
Which has better reviews, Backpack Tower Defense or Boing Ninja?
Boing Ninja is rated higher. Backpack Tower Defense averages 1.0 out of 5 from 1 ratings, while Boing Ninja averages 4.6 from 156 ratings.
Do Backpack Tower Defense or Boing Ninja have ads?
Backpack Tower Defense shows ads; Boing Ninja does not.
Which is updated more often, Backpack Tower Defense or Boing Ninja?
Backpack Tower Defense ships an update weekly, and Boing Ninja every 5 days. Most recently, Backpack Tower Defense was updated on October 25, 2026 and Boing Ninja on October 25, 2026.

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