# AndroidCORE vs Nightmares Within

The clearest difference is in-app purchases: AndroidCORE at none against Nightmares Within's 19. AndroidCORE also leads on update cadence (every 4 days vs every 3 weeks) and iOS requirement (11.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Nightmares Within sells 18 one-off in-app purchases. AndroidCORE asks for nothing beyond the download.

AndroidCORE ships an update every 4 days, Nightmares Within every 3 weeks. The most recent releases landed on October 4, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | AndroidCORE | Nightmares Within |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (21 ratings)](https://appshunter.io/ios/app/nightmares-within-zombie-game/id6761086723/reviews)** |
| Number of ratings | — | **21** |
| Positive reviews | — | 81.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 295 MB | 996 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 17+ |
| Developer | [Chenglin Fan](https://appshunter.io/developer/1689721155) | [WaterBear Games](https://appshunter.io/developer/1887730542) |

## What reviewers say

### AndroidCORE

[App page](https://appshunter.io/ios/app/androidcore/id6449585300)

**In-app purchases:** none


### Nightmares Within

[App page](https://appshunter.io/ios/app/nightmares-within-zombie-game/id6761086723)

Embark on a survival mission on a cursed island, battling relentless undead in a 3D FPS open-world. Scavenge resources, manage ammo, and choose your combat strategy to uncover the secrets of an abandoned hospital.

**Highlights:** High-stakes survival gameplay, Resource scavenging and ammo management, Stealth and action combat options, Deep RPG progression and skill tree, Open-world exploration, Daily challenges and missions

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

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Beginner's Gift Pack | $0.99 | one-time |
| Judgment Gift Pack | $1.99 | one-time |
| Limited-Time Gold Pack | $2.99 | one-time |
| Limited-Time Gold Pack | $4.99 | one-time |
| Monthly Member | $4.99 | one-time |
| Precision Part Supply Pack | $4.99 | one-time |
| Upgrade Boost Pack | $4.99 | one-time |
| Moderate Coins | $4.99 | one-time |
| Permanent VIP | $9.99 | one-time |
| Premium Pass | $9.99 | one-time |
| Precision Part Supply Pack | $9.99 | one-time |
| Limited-Time Gold Pack | $9.99 | one-time |
| Maul Pack | $9.99 | one-time |
| Pile of Coins | $9.99 | one-time |
| Premium Pass + | $19.99 | one-time |
| Loads of Coins | $19.99 | one-time |
| Sea of Coins | $49.99 | one-time |
| Ocean of Coins | $99.99 | one-time |


## Frequently asked questions

### Is AndroidCORE free?

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

### Is Nightmares Within free?

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

### Which is updated more often, AndroidCORE or Nightmares Within?

AndroidCORE ships an update every 4 days, and Nightmares Within every 3 weeks. Most recently, AndroidCORE was updated on October 4, 2026 and Nightmares Within on October 23, 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.*