# Underdark vs Spin Squad!

The clearest difference is review sentiment: Underdark at 72% against Spin Squad!'s 47%. Underdark also leads on rating (4.8 vs 4.6) and ratings volume (4K vs 1K). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Underdark sells 34 one-off in-app purchases and Spin Squad! sells 40 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 — 4K and 1K respectively. Written reviews point the same way: 72% of Underdark's written reviews are positive against 47% of Spin Squad!'s.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on September 24, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Underdark | Spin Squad! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4K ratings)](https://appshunter.io/ios/app/underdarkdefense/id6482025287/reviews)** | [4.6 (1K ratings)](https://appshunter.io/ios/app/spin-squad/id6511224968/reviews) |
| Number of ratings | **4K** | 1K |
| Positive reviews | **72.4% of reviews** | 46.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 490 MB | 1001 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SeungHo Chung](https://appshunter.io/developer/1626940418) | [111%](https://appshunter.io/developer/1060433596) |

## What reviewers say

### 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 buffs, and level up your 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 and choose buffs, Hero abilities and enhancements, Earn trophies

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

**In-app purchases (34)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Event Package 1 | $0.99 | one-time |
| daily_package_01 | $0.99 | one-time |
| season_growth_1 | $0.99 | one-time |
| dailyshop_1 | $1.99 | one-time |
| blade_pakcage | $2.99 | one-time |
| daily_package_02 | $2.99 | one-time |
| exp_2x | $3.49 | one-time |
| skin_30501 | $3.49 | one-time |
| Event Package 2 | $3.99 | one-time |
| pet_package | $4.99 | one-time |
| weekly_package_01 | $6.99 | one-time |
| add_speed | $7.49 | one-time |
| pass_hero_115 | $7.49 | one-time |
| pass_hero_102 | $7.49 | one-time |
| pass_hero_110 | $7.49 | one-time |
| season_superpass_1 | $7.99 | one-time |
| pack_remove_ads | $7.99 | one-time |
| daily_package_03 | $7.99 | one-time |
| hero_legend_santa | $8.99 | one-time |
| hero_legend_tower | $8.99 | one-time |
| hero_legend_armor | $8.99 | one-time |
| Event Package 3 | $8.99 | one-time |
| hero_legend_joker | $8.99 | one-time |
| hero_legend_necromancer | $8.99 | one-time |
| hero_legend_chicken | $8.99 | one-time |
| tower_legend_614 | $8.99 | one-time |
| ud_pack_20106 | $8.99 | one-time |
| tower_legend_628 | $8.99 | one-time |
| pack_remove_ads2 | $10.99 | one-time |
| Event Package 4 | $12.99 | one-time |
| season_level_1 | $16.99 | one-time |
| season_stage_1 | $16.99 | one-time |
| Event Package 5 | $17.99 | 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


### Spin Squad!

[App page](https://appshunter.io/ios/app/spin-squad/id6511224968)

This casual strategy game combines luck and strategic decision-making. Spin to acquire powerful guardians, merge them to create mythic beings, and battle fierce bosses. Your team composition and guardian abilities are key to victory.

**Highlights:** Spin for legendary guardians, Merge guardians to create mythic ones, Engage in epic boss battles, Strategic team building, Utilize guardian roles and traits, Luck-based gameplay elements

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

**In-app purchases (40)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AdFree & Speed - 1 | $0.99 | one-time |
| Golden Bundle Pack | $1.99 | one-time |
| Level 3 Package | $1.99 | one-time |
| Lucky Spin Package 1 | $1.99 | one-time |
| Diamond Subscribe 30 Days | $3.99 | one-time |
| Black Friday Gold Package | $4.99 | one-time |
| Black Friday Invitation Package | $4.99 | one-time |
| Mythic Random Units | $4.99 | one-time |
| Relic Key Subscribe 30 Days | $4.99 | one-time |
| Newbie Package 1 | $4.99 | one-time |
| Arin Marble Package 1 | $5.49 | one-time |
| Lucky Spin Package 2 | $5.99 | one-time |
| Strike Pack 1 | $6.99 | one-time |
| Newbie Package 2 | $6.99 | one-time |
| Golden Package | $7.99 | one-time |
| Battle Pass | $7.99 | one-time |
| Bamba Muscle Gain Package 2 | $8.99 | one-time |
| Lucky Spin Package 3 | $8.99 | one-time |
| Black Friday Uni Break Package | $9.99 | one-time |
| Black Friday Relic Key Package | $9.99 | one-time |
| All-in-one Package | $9.99 | one-time |
| Level 6 Package | $9.99 | one-time |
| Newbie All-in-one | $9.99 | one-time |
| Newbie Package 3 | $12.99 | one-time |
| Unit Entry Package | $14.99 | one-time |
| Spinner Release Package | $14.99 | one-time |
| Blob Release Package | $14.99 | one-time |
| Kitty Mage Release Package | $14.99 | one-time |
| Good Gun Release Package | $14.99 | one-time |
| Wave Pass_Normal | $14.99 | one-time |
| AdFree & Speed - 2 | $14.99 | one-time |
| Battle Premium Pass | $17.99 | one-time |
| Arin Marble Package 3 | $17.99 | one-time |
| Mythic Level Pass 1 | $17.99 | one-time |
| Wave Pass_Hard | $17.99 | one-time |
| Chapter 3 Wave Pass | $19.99 | one-time |
| Blobopoly Adventure Pack | $23.99 | one-time |
| Growth Package | $23.99 | one-time |
| Lucky Boost Package | $23.99 | one-time |
| Level 12 Package | $29.99 | one-time |

**What reviewers like**

- 🎮 Fun gameplay
- 👍 Good concept
- 🎉 Addictive and enjoyable

**What reviewers complain about**

- 🐛 Buggy and glitchy
- 🤑 Pay-to-win mechanics
- 🤔 Luck-based progression
- 💰 Microtransactions and paywall

**Reported bugs**

- Frequent crashes
- Progression issues (getting stuck at certain waves)
- Inconsistent/unreliable gameplay mechanics

**Requested features**

- More characters and content
- Improved luck/summon mechanics
- Resume feature for interrupted runs
- PvP or PvE modes
- Russian language support


## Frequently asked questions

### Is Underdark free?

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

### Is Spin Squad! free?

Spin Squad! is free to download, with in-app purchases available.

### Which has better reviews, Underdark or Spin Squad!?

Underdark is rated higher. Underdark averages 4.8 out of 5 from 4K ratings, while Spin Squad! averages 4.6 from 1K ratings.

### Do Underdark or Spin Squad! have ads?

Both Underdark and Spin Squad! show ads.

### Which is updated more often, Underdark or Spin Squad!?

Underdark ships an update every 4 days, and Spin Squad! every 4 days. Most recently, Underdark was updated on September 24, 2026 and Spin Squad! on September 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.*