# Skeleton Invader vs Flip Switcher

The clearest difference is in-app purchases: Flip Switcher at none against Skeleton Invader's 1. Flip Switcher also leads on update cadence (every 2 weeks vs every 29 months). Skeleton Invader's advantage is ads (none vs shown) and iOS requirement (9.3 vs 11.0). On price and device support there is nothing between them.

Both are free to download. Skeleton Invader sells 1 one-off in-app purchase. Flip Switcher asks for nothing beyond the download.

Skeleton Invader ships an update every 29 months, Flip Switcher every 2 weeks. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Skeleton Invader | Flip Switcher |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 29 months | **Every 2 weeks** |
| Size | 85 MB | 42 MB |
| Requires iOS | **9.3** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guisse Ngourane](https://appshunter.io/developer/455608665) | [KAEGUREE](https://appshunter.io/developer/1183810155) |

## What reviewers say

### Skeleton Invader

[App page](https://appshunter.io/ios/app/skeleton-invader/id1287479772)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 250.000 Neutrons | $2.99 | one-time |


### Flip Switcher

[App page](https://appshunter.io/ios/app/flip-switcher/id1621621760)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Skeleton Invader free?

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

### Is Flip Switcher free?

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

### Do Skeleton Invader or Flip Switcher have ads?

Flip Switcher shows ads; Skeleton Invader does not.

### Which is updated more often, Skeleton Invader or Flip Switcher?

Skeleton Invader ships an update every 29 months, and Flip Switcher every 2 weeks. Most recently, Skeleton Invader was updated on October 19, 2026 and Flip Switcher on October 3, 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.*