# Hellfrost vs Blue Castaways

The clearest difference is in-app purchases: Hellfrost at none against Blue Castaways's 8. Hellfrost also leads on iOS requirement (13.1 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Blue Castaways sells 8 one-off in-app purchases. Hellfrost asks for nothing beyond the download.

Hellfrost ships an update every 2 weeks, Blue Castaways weekly. Both last shipped on October 5, 2026.

## The numbers

| Metric | Hellfrost | Blue Castaways |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/hellfrost/id6502246175/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 101 MB | 641 MB |
| Requires iOS | **13.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [Evan Kwan](https://appshunter.io/developer/1744761427) | [晓菲 赵](https://appshunter.io/developer/1031857657) |

## What reviewers say

### Hellfrost

[App page](https://appshunter.io/ios/app/hellfrost/id6502246175)

Engage in strategic sliding-block battles against lava demons. Swipe to move your units, outmaneuver enemies, and conquer increasingly challenging levels. Enjoy bite-sized combat sessions perfect for quick play.

**Highlights:** Intuitive one-swipe controls, Bite-sized, replayable levels, Diverse unit types and tile mechanics, Gradually increasing difficulty, Unlockable levels

**Features:** macOS Compatibility

**In-app purchases:** none


### Blue Castaways

[App page](https://appshunter.io/ios/app/blue-castaways-global/id6786172399)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package 1 | $0.99 | one-time |
| Package 8 | $1.99 | one-time |
| Package 9 | $2.99 | one-time |
| Package 2 | $4.99 | one-time |
| Package 3 | $9.99 | one-time |
| Package 4 | $19.99 | one-time |
| Package 5 | $49.99 | one-time |
| Package 6 | $99.99 | one-time |


## Frequently asked questions

### Is Hellfrost free?

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

### Is Blue Castaways free?

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

### Do Hellfrost or Blue Castaways have ads?

Neither Hellfrost nor Blue Castaways shows ads.

### Which is updated more often, Hellfrost or Blue Castaways?

Hellfrost ships an update every 2 weeks, and Blue Castaways weekly. Most recently, Hellfrost was updated on October 5, 2026 and Blue Castaways on October 5, 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.*