# CrystalCoreDefense vs Stacktop

The clearest difference is update cadence: CrystalCoreDefense at weekly against Stacktop's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CrystalCoreDefense ships an update weekly, Stacktop every 2 weeks. The most recent releases landed on September 29, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | CrystalCoreDefense | Stacktop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 118 MB | 63 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [claudine Sokol](https://appshunter.io/developer/6778728272) | [Justin Gillenwater](https://appshunter.io/developer/6788779077) |

## What reviewers say

### CrystalCoreDefense

[App page](https://appshunter.io/ios/app/crystalcoredefense/id6778728270)

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

**In-app purchases:** none


### Stacktop

[App page](https://appshunter.io/ios/app/stacktop/id6788779075)

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

**In-app purchases:** none


## Frequently asked questions

### Is CrystalCoreDefense free?

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

### Is Stacktop free?

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

### Do CrystalCoreDefense or Stacktop have ads?

Neither CrystalCoreDefense nor Stacktop shows ads.

### Which is updated more often, CrystalCoreDefense or Stacktop?

CrystalCoreDefense ships an update weekly, and Stacktop every 2 weeks. Most recently, CrystalCoreDefense was updated on September 29, 2026 and Stacktop on September 21, 2026.

---

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