# Tic Tac Toe vs Underdark

The clearest difference is ads: Tic Tac Toe at none against Underdark's shown. Underdark's advantage is update cadence (every 4 days vs every 3 months) and iOS requirement (15.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Tic Tac Toe sells 4 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.

Tic Tac Toe ships an update every 3 months, Underdark every 4 days. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Tic Tac Toe | Underdark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4.1K ratings)](https://appshunter.io/ios/app/underdarkdefense/id6482025287/reviews)** |
| Number of ratings | — | **4.1K** |
| Positive reviews | — | 72.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 521 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ralf Koch](https://appshunter.io/developer/596125475) | [SeungHo Chung](https://appshunter.io/developer/1626940418) |

## What reviewers say

### Tic Tac Toe

[App page](https://appshunter.io/ios/app/tic-tac-toe-warfare/id1629580937)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip - Small | $0.99 | one-time |
| Support Development | $2.99 | one-time |
| Tip - Medium | $2.99 | one-time |
| Tip - Large | $4.99 | one-time |


### 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 Tic Tac Toe free?

Tic Tac Toe is free to download, with in-app purchases available.

### Is Underdark free?

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

### Do Tic Tac Toe or Underdark have ads?

Underdark shows ads; Tic Tac Toe does not.

### Which is updated more often, Tic Tac Toe or Underdark?

Tic Tac Toe ships an update every 3 months, and Underdark every 4 days. Most recently, Tic Tac Toe was updated on November 3, 2026 and Underdark on November 10, 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.*