# Backpack Tower Defense vs Boing Ninja

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.

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.

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.

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

## The numbers

| Metric | Backpack Tower Defense | Boing Ninja |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/backpack-tower-defense/id6762122942/reviews) | **[4.6 (156 ratings)](https://appshunter.io/ios/app/boing-ninja/id6762962916/reviews)** |
| Number of ratings | 1 | **156** |
| Positive reviews | — | 55.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 175 MB | 263 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ngo Nguyen](https://appshunter.io/developer/1833419289) | [Neptune Company](https://appshunter.io/developer/539389569) |

## What reviewers say

### Backpack Tower Defense

[App page](https://appshunter.io/ios/app/backpack-tower-defense/id6762122942)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spark Gems | $1.99 | one-time |
| Boost Gems | $3.99 | one-time |
| Remove ads | $4.99 | one-time |
| Starter Pack | $4.99 | one-time |
| Power Gems | $7.99 | one-time |
| Elite Gems | $17.99 | one-time |
| Master Gems | $34.99 | one-time |
| Infinity Gems | $79.99 | one-time |


### Boing Ninja

[App page](https://appshunter.io/ios/app/boing-ninja/id6762962916)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Revive Coin 1 | $0.99 | one-time |
| Gold 1 | $0.99 | one-time |
| Gem 1 | $0.99 | one-time |
| Piggy Bank Gem | $1.99 | one-time |
| Energy 2 | $2.99 | one-time |
| Gem 2 | $2.99 | one-time |
| Remove Inter Ads | $2.99 | one-time |
| Event Tower Package | $2.99 | one-time |
| Gold 2 | $3.99 | one-time |
| Event Key Package | $3.99 | one-time |
| Speed Boost Package | $5.99 | one-time |
| VIP Package 1 | $8.99 | one-time |
| Gem 3 | $10.99 | one-time |
| Gold 3 | $11.99 | one-time |
| Event Skin Package | $11.99 | one-time |
| Remove Reward Ad | $12.99 | one-time |
| Stage Pass 1 | $13.99 | one-time |
| Monster Kill Pass 1 | $18.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*