# Deep Sea Defender vs Submarine

The clearest difference is ads: Deep Sea Defender at none against Submarine's shown. Submarine's advantage is update cadence (every 3 weeks vs every 108 months) and iOS requirement (9.0 vs 13.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Deep Sea Defender sells 4 one-off in-app purchases and Submarine sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Deep Sea Defender ships an update every 108 months, Submarine every 3 weeks. The most recent releases landed on November 4, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Deep Sea Defender | Submarine |
| --- | --- | --- |
| 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 | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 108 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 82 MB | 204 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [elias sleiman](https://appshunter.io/developer/551532485) | [FIX Inc.](https://appshunter.io/developer/919068275) |

## 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 |


### Submarine

[App page](https://appshunter.io/ios/app/submarine-under-attack/id1469866602)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gold_package1 | $0.99 | one-time |
| Gold_Package2 | $3.99 | one-time |
| Gold_package3 | $7.99 | one-time |
| CT-207 | $19.99 | one-time |
| CT-207 + AD | $20.99 | one-time |
| Gold_package4 | $22.99 | one-time |
| SB-207 | $24.99 | one-time |
| SB-207 + AD | $25.99 | one-time |
| Gold_package5 | $39.99 | one-time |
| Gold_package6 | $79.99 | one-time |


## Frequently asked questions

### Is Deep Sea Defender free?

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

### Is Submarine free?

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

### Do Deep Sea Defender or Submarine have ads?

Submarine shows ads; Deep Sea Defender does not.

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

Deep Sea Defender ships an update every 108 months, and Submarine every 3 weeks. Most recently, Deep Sea Defender was updated on November 4, 2026 and Submarine on October 26, 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.*