# Biotix vs X

The clearest difference is rating: Biotix at 4.3 against X's 3.6. Biotix also leads on review sentiment (80% vs 56%) and ratings volume (467 vs 65). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Biotix sells 6 one-off in-app purchases and X sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Biotix holds the better App Store score, 4.3 against 3.6. That said, the two scores are not equally well evidenced: Biotix has 467 ratings behind it against 65, so its average is the more settled of the two. Written reviews point the same way: 80% of Biotix's written reviews are positive against 56% of X's.

Biotix ships an update every 9 months, X every 17 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Biotix | X |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (467 ratings)](https://appshunter.io/ios/app/biotix-phage-genesis/id761380454/reviews)** | [3.6 (65 ratings)](https://appshunter.io/ios/app/x-core-galactic-plague/id1104849567/reviews) |
| Number of ratings | **467** | 65 |
| Positive reviews | **80.5% of reviews** | 55.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 17 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 154 MB | 186 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Alexandru Craciun](https://appshunter.io/developer/1840870751) | [Mikhail Vladimirovich](https://appshunter.io/developer/660171136) |

## What reviewers say

### Biotix

[App page](https://appshunter.io/ios/app/biotix-phage-genesis/id761380454)

Engage in a microscopic war for survival, evolving your species through genetic engineering. Explore a world under the microscope, battle viral enemies, and conquer host cells to become dominant. Features include upgradable stats, challenging levels, and multiplayer modes.

**Highlights:** Genetic engineering for species enhancement, Microscopic world exploration, Viral combat against other organisms, Upgradable stats and abilities, Challenging levels and host cell types, Multiplayer mode

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10.000 Coins | $0.99 | one-time |
| 24.000 Coins | $1.99 | one-time |
| Disable Ads | $1.99 | one-time |
| 48.000 Coins | $2.99 | one-time |
| Special Offer | $3.99 | one-time |
| 128.000 Coins | $5.99 | one-time |

**What reviewers like**

- 🚀 Quick gameplay
- 👍 Addictive and fun
- 🎨 Great visuals

**What reviewers complain about**

- 🔁 Repetitive and grindy
- 💰 Pay-to-win mechanics
- 🐛 Bugs and glitches
- 🔍 Lack of content/levels

**Reported bugs**

- Game freezing/crashing
- Ads not removed after purchase
- Multiplayer issues

**Requested features**

- More levels and content
- Improved multiplayer experience
- Better progression system


### X

[App page](https://appshunter.io/ios/app/x-core-galactic-plague/id1104849567)

Lead an alien invasion force to conquer Earth in this challenging strategy game. Utilize unique alien species and over fifty invasion tactics, evolving your army as you fight against humanity's defenses. Experience a galactic war where only the most strategic players can achieve victory.

**Highlights:** Alien invasion strategy, Ten alien species to command, Over fifty strategic invasion variants, Extensive upgrade trees, Challenging gameplay, Galactic war simulation

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| crystal_1 | $0.99 | one-time |
| 2000+100 crystals | $1.99 | one-time |
| 3000+250 crystals | $2.99 | one-time |
| USSR | $3.99 | one-time |
| 4000+450 crystals | $3.99 | one-time |
| Reptilians | $3.99 | one-time |
| Insectoids | $3.99 | one-time |
| Egypt gods | $3.99 | one-time |
| Galactic Council | $3.99 | one-time |
| 9000+2200 crystals | $8.99 | one-time |

**What reviewers like**

- 👍 Addictive gameplay
- 👍 Great time killer
- 👍 Interesting concept
- 👍 Good music
- 👍 Can be played offline

**What reviewers complain about**

- ⚖️ Extremely difficult on easy
- ⚖️ Unbalanced gameplay
- ⚖️ Paywalls for progression
- ⚖️ In-game purchases not working
- ⚖️ Frustrating difficulty spikes

**Reported bugs**

- In-game purchases not working
- Buy button unresponsive
- Game crashes and restarts progress
- Egyptian Gods race not working
- Scripture for mobility not infecting new countries

**Requested features**

- Fix in-game purchase issues
- Add more characters/races
- Add new gimmicks
- Make game easier
- More crystal ads


## Frequently asked questions

### Is Biotix free?

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

### Is X free?

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

### Which has better reviews, Biotix or X?

Biotix is rated higher. Biotix averages 4.3 out of 5 from 467 ratings, while X averages 3.6 from 65 ratings.

### Do Biotix or X have ads?

Neither Biotix nor X shows ads.

### Which is updated more often, Biotix or X?

Biotix ships an update every 9 months, and X every 17 months. Most recently, Biotix was updated on November 1, 2026 and X on November 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*