# BIO WAR vs Step Cave

The clearest difference is in-app purchases: BIO WAR at none against Step Cave's 1. BIO WAR also leads on ads (none vs shown). Step Cave's advantage is iOS requirement (13.0 vs 18.5). On price, update cadence and device support there is nothing between them.

Both are free to download. Step Cave sells 1 one-off in-app purchase. BIO WAR asks for nothing beyond the download.

BIO WAR ships an update every 2 days, Step Cave every 4 days. The most recent releases landed on October 12, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | BIO WAR | Step Cave |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 4 days |
| Size | 12 MB | 158 MB |
| Requires iOS | 18.5 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yonghun Cho](https://appshunter.io/developer/1827369182) | [HO YEON BACK](https://appshunter.io/developer/1847639766) |

## What reviewers say

### BIO WAR

[App page](https://appshunter.io/ios/app/bio-war/id6754510091)

**Features:** macOS Compatibility

**In-app purchases:** none


### Step Cave

[App page](https://appshunter.io/ios/app/step-cave/id6792671998)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


## Frequently asked questions

### Is BIO WAR free?

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

### Is Step Cave free?

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

### Do BIO WAR or Step Cave have ads?

Step Cave shows ads; BIO WAR does not.

### Which is updated more often, BIO WAR or Step Cave?

BIO WAR ships an update every 2 days, and Step Cave every 4 days. Most recently, BIO WAR was updated on October 12, 2026 and Step Cave on September 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.*