# Backpack Brawl vs Underdark

Backpack Brawl and Underdark both sit at 4.7 stars, but that hides the real split: 72% of Underdark's written reviews are positive against 63% of Backpack Brawl's. Underdark also leads on iOS requirement (13.0 vs 15.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Backpack Brawl sells 10 in-app purchases, starting at $2.69 per 7 days and Underdark sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Backpack Brawl against 4.8 for Underdark. Both are backed by a comparable volume of ratings — 6.2K and 4.1K respectively. Written reviews are what separate them: 63% of Backpack Brawl's written reviews are positive against 72% of Underdark's.

Backpack Brawl ships an update every 8 days, Underdark every 4 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | Backpack Brawl | Underdark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (6.2K ratings)](https://appshunter.io/ios/app/backpack-brawl-hero-battles/id6479175676/reviews) | **[4.8 (4.1K ratings)](https://appshunter.io/ios/app/underdarkdefense/id6482025287/reviews)** |
| Number of ratings | **6.2K** | 4.1K |
| Positive reviews | 63.2% of reviews | **72.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 8 days | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 524 MB | 520 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Azur Interactive Games Limited](https://appshunter.io/developer/1296347323) | [SeungHo Chung](https://appshunter.io/developer/1626940418) |

## What reviewers say

### Backpack Brawl

[App page](https://appshunter.io/ios/app/backpack-brawl-hero-battles/id6479175676)

Engage in strategic auto-battles by mastering inventory management. Assemble powerful weapons and artifacts to unleash devastating combos in thrilling 1v1 PvP duels. Choose from diverse heroes and experiment with item placement for unique synergies.

**Highlights:** Strategic inventory management, Hero customization, Dynamic item placement, Competitive 1v1 PvP, Rewarding progression system, Regular content updates

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $2.69 | per 7 days |
| Monthly Subscription | $8.99 | per month |
| Cascade Offer | $0.29 | one-time |
| Cascade Offer | $0.49 | one-time |
| Cascade Offer | $2.69 | one-time |
| Hero Unlock | $3.99 | one-time |
| Intro Pack | $4.99 | one-time |
| Tier 3 Hero Unlock | $5.39 | one-time |
| Hero Path | $8.99 | one-time |
| Gold Pass | $8.99 | one-time |

**What reviewers like**

- 🚀 Smooth gameplay
- 👍 User-friendly design
- 💡 Unique and creative concept
- 🎨 Colorful and visually appealing
- 🎮 Addictive and engaging

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 🕰️ Slow progression and leveling
- 🤖 Unbalanced matchmaking against AI
- 💰 Aggressive monetization tactics
- 🔇 Lack of sound and audio options

**Reported bugs**

- Inability to open chests past level 17
- Disappearing or lost game progress
- Unresponsive or freezing UI elements
- Inconsistent item functionality after updates

**Requested features**

- Offline play mode
- More character and build diversity
- Improved tutorial and onboarding
- Cloud save and cross-device sync
- Ranked/competitive game modes


### Underdark

[App page](https://appshunter.io/ios/app/underdarkdefense/id6482025287)

Defend the Eternal Flame from relentless dark forces in this tactical tower defense game. Strategically place towers, choose powerful buffs, and level up unique heroes to forge an impenetrable defense. Enjoy one-handed gameplay for strategic fun anytime, anywhere.

**Highlights:** Defend the Eternal Flame, One-handed gameplay, Customize defense strategy, Level up heroes, Strategic tower placement, Choose buffs

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| daily_package_01 | $0.99 | one-time |
| blade_pakcage | $2.99 | one-time |
| daily_package_02 | $2.99 | one-time |
| exp_2x | $3.49 | one-time |
| Event Package 2 | $3.99 | one-time |
| add_speed | $7.49 | one-time |
| season_superpass_1 | $7.99 | one-time |
| pack_remove_ads | $7.99 | one-time |
| pack_remove_ads2 | $10.99 | one-time |
| season_hyperpass_1 | $18.99 | one-time |

**What reviewers like**

- 🚀 Addictive gameplay
- 👍 Generous with rewards
- 🚀 Smooth performance
- 👍 No forced ads
- 👍 Unique tower defense mechanics

**What reviewers complain about**

- 🐛 Multiplayer issues
- 🔋 Battery drain
- 🔒 Paywall for progression
- 🔒 Excessive microtransactions
- 🔒 Confusing UI with too many menus

**Reported bugs**

- Goblin tower factory causing game slowdown
- Consecutive login rewards reset after updates
- Invisible towers in multiplayer

**Requested features**

- Ability to rotate towers
- Move towers after placement
- More enemy variety and animations
- Improved co-op mode
- Simplified progression system


## Frequently asked questions

### Is Backpack Brawl free?

Backpack Brawl is free to download, with in-app purchases available.

### Is Underdark free?

Underdark is free to download, with in-app purchases available.

### Which has better reviews, Backpack Brawl or Underdark?

Underdark is rated higher. Backpack Brawl averages 4.7 out of 5 from 6.2K ratings, while Underdark averages 4.8 from 4.1K ratings.

### Do Backpack Brawl or Underdark have ads?

Both Backpack Brawl and Underdark show ads.

### Which is updated more often, Backpack Brawl or Underdark?

Backpack Brawl ships an update every 8 days, and Underdark every 4 days. Most recently, Backpack Brawl was updated on November 5, 2026 and Underdark on November 5, 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.*