# Cross Virus vs Fail Finder

The clearest difference is in-app purchases: Cross Virus at none against Fail Finder's 1. Cross Virus also leads on rating (4.3 vs 4.0) and ratings volume (8 vs 1). Fail Finder's advantage is ads (none vs shown). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. Fail Finder sells 1 one-off in-app purchase. Cross Virus asks for nothing beyond the download.

Cross Virus holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: Cross Virus has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Cross Virus ships an update every 26 months, Fail Finder every 23 months. Both last shipped on October 6, 2026.

## The numbers

| Metric | Cross Virus | Fail Finder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (8 ratings)](https://appshunter.io/ios/app/cross-virus/id944133247/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/fail-finder/id6476245233/reviews) |
| Number of ratings | **8** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 26 months | **Every 23 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 5 MB | 33 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DAN-BALL](https://appshunter.io/developer/348592290) | [Haywire Interactive LLC](https://appshunter.io/developer/1695974454) |

## What reviewers say

### Cross Virus

[App page](https://appshunter.io/ios/app/cross-virus/id944133247)

A puzzle game where players strategically place blocks to contain and minimize the growth of viruses. The objective is to limit the spread of viruses by blocking their paths, preventing them from growing uncontrollably.

**Highlights:** Strategic block placement, Virus growth containment, Minimize virus count, Cross-directional virus growth, Touch-based controls

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

**In-app purchases:** none


### Fail Finder

[App page](https://appshunter.io/ios/app/fail-finder/id6476245233)

This app helps competitive gamers improve by identifying and categorizing their most frequent mistakes. Currently focused on Rocket League, it aims to support more games in the future, allowing players to pinpoint areas for practice and skill development.

**Highlights:** Mistake categorization, Identify common errors, Improve gaming skills, Rocket League support, Future game support

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | one-time |


## Frequently asked questions

### Is Cross Virus free?

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

### Is Fail Finder free?

Fail Finder is free to download, with in-app purchases available.

### Which has better reviews, Cross Virus or Fail Finder?

Cross Virus is rated higher. Cross Virus averages 4.3 out of 5 from 8 ratings, while Fail Finder averages 4.0 from 1 ratings.

### Do Cross Virus or Fail Finder have ads?

Cross Virus shows ads; Fail Finder does not.

### Which is updated more often, Cross Virus or Fail Finder?

Cross Virus ships an update every 26 months, and Fail Finder every 23 months. Most recently, Cross Virus was updated on October 6, 2026 and Fail Finder on October 6, 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.*