# Skill 15 vs Countless

The clearest difference is update cadence: Countless at every 5 months against Skill 15's every 19 months. Skill 15's advantage is iOS requirement (8.0 vs 15.0). 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.

Skill 15 ships an update every 19 months, Countless every 5 months. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Skill 15 | Countless |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/skill-15/id434763052/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 61.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 56 MB | 77 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tri-Software](https://appshunter.io/developer/413551271) | [Valerio Manuel Sevilla Gutierrez](https://appshunter.io/developer/542915246) |

## What reviewers say

### Skill 15

[App page](https://appshunter.io/ios/app/skill-15/id434763052)

A classic sliding puzzle game that challenges players to arrange numbered tiles in sequential order. Enjoy simple, addictive, and fun gameplay that hones your logic skills.

**Highlights:** Classic 15 number puzzle, Sequential tile arrangement, Easy to learn, Simple gameplay, Addictive fun

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

**In-app purchases:** none


### Countless

[App page](https://appshunter.io/ios/app/countless-ability-game/id1148376498)

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

**In-app purchases:** none


## Frequently asked questions

### Is Skill 15 free?

Skill 15 is free to download, with no in-app purchases.

### Is Countless free?

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

### Do Skill 15 or Countless have ads?

Neither Skill 15 nor Countless shows ads.

### Which is updated more often, Skill 15 or Countless?

Skill 15 ships an update every 19 months, and Countless every 5 months. Most recently, Skill 15 was updated on October 5, 2026 and Countless 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.*