# Sub Command vs Sky Defense

The clearest difference is review sentiment: Sky Defense at 50% against Sub Command's 0%. Sky Defense also leads on price (Free vs $0.99) and rating (4.6 vs 3.3). Sub Command's advantage is in-app purchases (none vs 32) and ads (none vs shown). On device support there is nothing between them.

Sky Defense is free to download; Sub Command costs $0.99 up front. Sky Defense sells 32 one-off in-app purchases. Sub Command asks for nothing beyond the download.

Sky Defense holds the better App Store score, 4.6 against 3.3. That said, the two scores are not equally well evidenced: Sky Defense has 11K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Sub Command's written reviews are positive against 50% of Sky Defense's.

Sub Command ships an update every 10 months, Sky Defense every 2 months. The most recent releases landed on October 12, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Sub Command | Sky Defense |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.3 (4 ratings)](https://appshunter.io/ios/app/sub-command/id789382250/reviews) | **[4.6 (11K ratings)](https://appshunter.io/ios/app/sky-defense-war-duty/id6469495100/reviews)** |
| Number of ratings | 4 | **11K** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 29 MB | 313 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 12+ |
| Developer | [Jay Luo](https://appshunter.io/developer/729686872) | [Horus](https://appshunter.io/developer/1296722699) |

## What reviewers say

### Sub Command

[App page](https://appshunter.io/ios/app/sub-command/id789382250)

Pilot a submarine and sink enemy ships using torpedoes in this arcade-style game. Maneuver your vessel with tilt controls and use sonar to locate targets. Enjoy a classic gaming experience with no ads or in-app purchases.

**Highlights:** Arcade-style submarine combat, Tilt controls for movement, Sonar for ship detection, Torpedo firing mechanics, WW2 ship silhouettes, No ads or in-app purchases

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

**In-app purchases:** none


### Sky Defense

[App page](https://appshunter.io/ios/app/sky-defense-war-duty/id6469495100)

Defend your airspace in an intense arcade shooter against an alien invasion. Engage in fast-paced, vertical ground-to-air combat with realistic visuals and a thrilling story. Perfect for quick bursts of action.

**Highlights:** Fast-paced arcade shooting, Unique vertical gameplay, Thrilling story mode, Realistic visuals and sound, Pick-up-and-play accessibility

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

**In-app purchases (32)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads End Game | $1.99 | one-time |
| Twin M2 Browning Sale 50% | $1.99 | one-time |
| Small Starter Pack | $1.99 | one-time |
| Pocket of Gold | $2.99 | one-time |
| 9K111 Fagot Sale 30% | $2.99 | one-time |
| Twin M2 Browning Sale 30% | $2.99 | one-time |
| Pocket of Gold First Purchase | $2.99 | one-time |
| Extra Pack | $4.99 | one-time |
| Bag of Gold | $4.99 | one-time |
| Twin Type 92 Sale 50% | $4.99 | one-time |
| Unique Handful of Gold | $4.99 | one-time |
| Twin M2 Browning | $4.99 | one-time |
| Medium Starter Pack | $4.99 | one-time |
| Handful of Gold First Purchase | $4.99 | one-time |
| Twin Type 92 Sale 30% | $6.99 | one-time |
| Extra Starter Pack | $6.99 | one-time |
| Twin Type 92 | $9.99 | one-time |
| Twin M.A 306 Sale 50% | $9.99 | one-time |
| PILE OF CASH | $9.99 | one-time |
| Package 7 Days | $9.99 | one-time |
| Pile of Gold | $9.99 | one-time |
| Pile of Gold First Purchase | $9.99 | one-time |
| Special Pack Sale 20% | $18.99 | one-time |
| BAG OF CASH | $19.99 | one-time |
| Bag of Gold | $19.99 | one-time |
| Bag of Gold Bonus 800 Gold | $19.99 | one-time |
| Twin MG42 BBQ | $19.99 | one-time |
| Bag of Gold First Purchase | $19.99 | one-time |
| Special Pack | $23.99 | one-time |
| Twin Sentry Chaingun | $24.99 | one-time |
| Case of Gold | $29.99 | one-time |
| CASE OF CASH | $29.99 | one-time |

**What reviewers like**

- 🚀 Great game
- 👍 Fun and challenging
- 👍 Realistic
- 👍 No ads option

**What reviewers complain about**

- 🐛 Sound issues
- 💰 Expensive in-app purchases
- 🔋 Ad-heavy gameplay
- 🔒 Political ads

**Reported bugs**

- Unable to summon airstrike
- Game only supported to level 180

**Requested features**

- New updates and levels
- Translator for chat


## Frequently asked questions

### Is Sub Command free?

Sub Command costs $0.99, with no in-app purchases.

### Is Sky Defense free?

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

### Which has better reviews, Sub Command or Sky Defense?

Sky Defense is rated higher. Sub Command averages 3.3 out of 5 from 4 ratings, while Sky Defense averages 4.6 from 11K ratings.

### Do Sub Command or Sky Defense have ads?

Sky Defense shows ads; Sub Command does not.

### Which is updated more often, Sub Command or Sky Defense?

Sub Command ships an update every 10 months, and Sky Defense every 2 months. Most recently, Sub Command was updated on October 12, 2026 and Sky Defense on October 19, 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.*