# Ultra vs SkullAdvisor

The clearest difference is in-app purchases: SkullAdvisor at none against Ultra's 4. SkullAdvisor also leads on update cadence (every 10 days vs every 2 months) and iOS requirement (15.1 vs 17.4). On price, ads and device support there is nothing between them.

Both are free to download. Ultra sells 4 in-app purchases, starting at $0.49 per month. SkullAdvisor asks for nothing beyond the download.

Ultra ships an update every 2 months, SkullAdvisor every 10 days. The most recent releases landed on October 18, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Ultra | SkullAdvisor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Size | 183 MB | 33 MB |
| Requires iOS | 17.4 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Frederic Bages](https://appshunter.io/developer/1509045144) | [BONE BREAKER](https://appshunter.io/developer/1785392663) |

## What reviewers say

### Ultra

[App page](https://appshunter.io/ios/app/ultra-trails/id1509045145)

**Features:** Family Sharing, Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic (Monthly) | $0.49 | per month |
| Premium (Monthly) | $0.99 | per month |
| Basic (Annual) | $3.99 | per year |
| Premium (Annual) | $8.99 | per year |


### SkullAdvisor

[App page](https://appshunter.io/ios/app/skulladvisor/id6739451764)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ultra free?

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

### Is SkullAdvisor free?

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

### Do Ultra or SkullAdvisor have ads?

Neither Ultra nor SkullAdvisor shows ads.

### Which is updated more often, Ultra or SkullAdvisor?

Ultra ships an update every 2 months, and SkullAdvisor every 10 days. Most recently, Ultra was updated on October 18, 2026 and SkullAdvisor on October 4, 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.*