# Blue Defense vs Yo

The clearest difference is rating: Yo at 5.0 against Blue Defense's 4.3. Yo also leads on in-app purchases (none vs 1) and review sentiment (100% vs 82%). Blue Defense's advantage is ratings volume (20 vs 3). On price, ads and device support there is nothing between them.

Both are free to download. Blue Defense sells 1 one-off in-app purchase. Yo asks for nothing beyond the download.

Yo holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Blue Defense has 20 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 82% of Blue Defense's written reviews are positive against 100% of Yo's.

## The numbers

| Metric | Blue Defense | Yo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (20 ratings)](https://appshunter.io/ios/app/blue-defense-second-wave/id389817492/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/yo-yo-go/id6478523655/reviews)** |
| Number of ratings | **20** | 3 |
| Positive reviews | 81.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 16 MB | 65 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Cat in a Box Software](https://appshunter.io/developer/1600179204) | [Jacob Lyons](https://appshunter.io/developer/1729681839) |

## What reviewers say

### Blue Defense

[App page](https://appshunter.io/ios/app/blue-defense-second-wave/id389817492)

Defend your planet from alien invaders using a powerful cannon. Engage in intense arcade action with various game modes, leaderboards, and unlockable content. Enjoy updated retro graphics and flexible controls.

**Highlights:** Planet cannon for mass enemy destruction, Gauntlet mode to win the game, Infinite-Classic and Infinite-Quickstart modes, Level select with medal earning, 74 global leaderboards, Automatic save state, Multi-touch and tilt controls

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Content | $1.99 | one-time |


### Yo

[App page](https://appshunter.io/ios/app/yo-yo-go/id6478523655)

Test your reflexes in this challenging arcade game where a fast-moving yo-yo must navigate increasingly difficult levels. Dodge obstacles and aim for narrow passages to progress. It's a test of skill and timing.

**Highlights:** Increasingly difficult levels, Fast-paced yo-yo action, Obstacle avoidance, Skill and timing challenges, Simple, addictive gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Blue Defense free?

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

### Is Yo free?

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

### Which has better reviews, Blue Defense or Yo?

Yo is rated higher. Blue Defense averages 4.3 out of 5 from 20 ratings, while Yo averages 5.0 from 3 ratings.

### Do Blue Defense or Yo have ads?

Neither Blue Defense nor Yo shows ads.

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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.*