# Bloons Card Storm vs Underdark

The clearest difference is update cadence: Underdark at every 4 days against Bloons Card Storm's every 3 weeks. Underdark also leads on review sentiment (72% vs 59%). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Bloons Card Storm sells 10 one-off in-app purchases and Underdark sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Underdark holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 2.9K and 4.1K respectively. Written reviews point the same way: 59% of Bloons Card Storm's written reviews are positive against 72% of Underdark's.

Bloons Card Storm ships an update every 3 weeks, Underdark every 4 days. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Bloons Card Storm | Underdark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (2.9K ratings)](https://appshunter.io/ios/app/bloons-card-storm/id6478193271/reviews) | **[4.8 (4.1K ratings)](https://appshunter.io/ios/app/underdarkdefense/id6482025287/reviews)** |
| Number of ratings | 2.9K | **4.1K** |
| Positive reviews | 58.5% of reviews | **72.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 480 MB | 521 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Ninja Kiwi](https://appshunter.io/developer/386241773) | [SeungHo Chung](https://appshunter.io/developer/1626940418) |

## What reviewers say

### Bloons Card Storm

[App page](https://appshunter.io/ios/app/bloons-card-storm/id6478193271)

Engage in a strategic collectible card game with iconic characters. Build powerful decks, master hero abilities, and battle opponents in PvP or solo adventures. Craft unique cards and balance offense and defense to claim victory.

**Highlights:** Collectible card game mechanics, Hero abilities and unique characters, Deck building and card crafting, PvP and single-player modes, Cross-platform play, Balance offense and defense

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2000 Universal Tokens | $0.99 | one-time |
| 10500 Universal Tokens | $4.99 | one-time |
| Obyn Hero Bundle | $5.99 | one-time |
| Starter Pack | $6.99 | one-time |
| Founder's Pack | $7.99 | one-time |
| Holiday Bundle | $8.99 | one-time |
| Adora Hero Bundle | $9.99 | one-time |
| Amelia Hero Bundle | $9.99 | one-time |
| Amelia Mega Bundle | $14.99 | one-time |
| 44000 Universal Tokens | $19.99 | one-time |

**What reviewers like**

- 👍 Great gameplay and strategy
- 🥝 Unique Bloons-themed card game
- 💎 Decent monetization, no predatory loot boxes
- 🎨 Visually appealing art style

**What reviewers complain about**

- 🐢 Slow progression and resource acquisition
- 🕹️ Clunky mobile interface, small UI elements
- 🔍 Lack of content, limited single-player modes
- 🤯 Matchmaking and connectivity issues

**Reported bugs**

- Game crashes and disconnects
- Progression loss when opponents quit
- Unresponsive UI and control issues

**Requested features**

- Ranked/competitive modes
- More single-player content
- Improved deck building and customization
- Better rewards for completed matches


### 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 growth 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 Bloons Card Storm free?

Bloons Card Storm 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, Bloons Card Storm or Underdark?

Underdark is rated higher. Bloons Card Storm averages 4.6 out of 5 from 2.9K ratings, while Underdark averages 4.8 from 4.1K ratings.

### Do Bloons Card Storm or Underdark have ads?

Both Bloons Card Storm and Underdark show ads.

### Which is updated more often, Bloons Card Storm or Underdark?

Bloons Card Storm ships an update every 3 weeks, and Underdark every 4 days. Most recently, Bloons Card Storm was updated on November 7, 2026 and Underdark on November 9, 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.*