Comparison

Grim Bounce 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

Grim Bounce

Engage in intense combat against endless waves of monsters using a diverse arsenal of unique weapons. Collect gold and materials to upgrade your stats and enhance your arsenal, unlocking devastating powers to crush your foes and become a legendary hero.

Highlights
  • Endless monster waves
  • Diverse weapon arsenal
  • Weapon and stat upgrades
  • Chest rewards
  • Unlockable powers
Features
Read full description

Warning! Warning! Endless monsters are surging like a tide. You will use every weapon at your disposal to fend them off. Firing marbles, magnets, scissors—why are there pumpkins?! And what is this pufferfish?! But somehow, it works pretty well; defeat monsters to open chests (Wow! It's gold~). Unlock more powerful weapons: flaming arrows, spinning blades, lightning chains, black holes, Cthulhu's hand, and more. Earn gold and materials to freely upgrade your stats, enhance weapons, and unleash their sealed powers. Master unparalleled strength to completely crush the united assault of otherworldly monsters. Become the great existence praised in legends! Fight! Unleash the power you command without reservation. Let the enemies fear you! Let future generations sing your praises!

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

Grim Bounce4 screens
Boing Ninja4 screens

Verdict

The call

Grim Bounce and Boing Ninja both sit at 4.7 stars, but that hides the real split: 100% of Grim Bounce's written reviews are positive against 56% of Boing Ninja's. Boing Ninja's advantage is ads (none vs shown) and ratings volume (152 vs 3). On price, rating, 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. Grim Bounce sells 10 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

On the App Store both sit at effectively the same score — 4.7 for Grim Bounce against 4.6 for Boing Ninja. That said, the two scores are not equally well evidenced: Boing Ninja has 152 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 100% of Grim Bounce's written reviews are positive against 56% of Boing Ninja's.

UpkeepUpdate frequency

Grim Bounce ships an update every 8 days, Boing Ninja every 5 days. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 7 level
Grim Bounce versus Boing Ninja: the parameters behind the verdict, then further details
ParameterGrim BounceBoing Ninja
PriceFreeFree
Rating4.7 (3 ratings) — better4.6 (152 ratings)
Positive reviews100.0% of reviews — better55.6% of reviews
Number of ratings3152 — better
Update frequencyEvery 8 daysEvery 5 days — better
AdsYesNo — better
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
Size547 MB263 MB
Age rating9+4+
DeveloperHARVEST STAR INTERACTIVE LIMITEDNeptune Company

Customer experience

Grim Bounce

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Boing Ninja

All ratings152 ratings
Positive90.8%
Neutral5.3%
Negative3.9%
Written reviews9 reviews
Positive55.6%
Neutral11.1%
Negative33.3%

In-app purchases

10 purchases

Grim Bounce

One-time10
  • Diamond*60$0.99
  • First Pack$0.99
  • Diamond*300$4.99
Show 7 more
  • Monthly Card$6.99
  • Diamond*680$9.99
  • daily Pack$9.99
  • Battle Pass$12.99
  • Diamond*1280$29.99
  • Diamond*3280$49.99
  • Diamond*6480$99.99
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 Grim Bounce free?
Grim Bounce 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, Grim Bounce or Boing Ninja?
Grim Bounce is rated higher. Grim Bounce averages 4.7 out of 5 from 3 ratings, while Boing Ninja averages 4.6 from 152 ratings.
Do Grim Bounce or Boing Ninja have ads?
Grim Bounce shows ads; Boing Ninja does not.
Which is updated more often, Grim Bounce or Boing Ninja?
Grim Bounce ships an update every 8 days, and Boing Ninja every 5 days. Most recently, Grim Bounce was updated on October 10, 2026 and Boing Ninja on October 15, 2026.

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