# Deep Sea Defender vs Underwater Runner

The clearest difference is in-app purchases: Underwater Runner at none against Deep Sea Defender's 4. Underwater Runner also leads on update cadence (every 4 days vs every 108 months). Deep Sea Defender's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Deep Sea Defender sells 4 one-off in-app purchases. Underwater Runner asks for nothing beyond the download.

Deep Sea Defender ships an update every 108 months, Underwater Runner every 4 days. The most recent releases landed on June 4, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Deep Sea Defender | Underwater Runner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/deep-sea-defender/id1033688560/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 108 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 82 MB | 182 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [elias sleiman](https://appshunter.io/developer/551532485) | [Ankit Kanani](https://appshunter.io/developer/1800427460) |

## What reviewers say

### Deep Sea Defender

[App page](https://appshunter.io/ios/app/deep-sea-defender/id1033688560)

Navigate a yellow submarine through dangerous underwater environments, dodging obstacles and enemies. Collect power-ups and coins to upgrade your vessel and unlock new levels. Test your survival skills in this deep-sea adventure.

**Highlights:** Navigate treacherous waters, Dodge mines and sea monsters, Collect power-ups and coins, Upgrade your submarine, Unlock new levels, Survive deep-sea challenges

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin Pack 1 | $4.99 | one-time |
| Remove Ads!! | $5.99 | one-time |
| Coin Pack 2 | $6.99 | one-time |
| Coin Pack 3 | $8.99 | one-time |


### Underwater Runner

[App page](https://appshunter.io/ios/app/underwater-runner/id6742896513)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Deep Sea Defender free?

Deep Sea Defender is free to download, with in-app purchases available.

### Is Underwater Runner free?

Underwater Runner is free to download, with no in-app purchases.

### Do Deep Sea Defender or Underwater Runner have ads?

Underwater Runner shows ads; Deep Sea Defender does not.

### Which is updated more often, Deep Sea Defender or Underwater Runner?

Deep Sea Defender ships an update every 108 months, and Underwater Runner every 4 days. Most recently, Deep Sea Defender was updated on June 4, 2026 and Underwater Runner on September 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.*