# Zef vs iQFoil Class

The clearest difference is in-app purchases: iQFoil Class at none against Zef's 3. iQFoil Class also leads on iOS requirement (11.0 vs 15.0). Zef's advantage is update cadence (fortnightly vs every 18 months) and device support (5 vs 3). On price and ads there is nothing between them.

Both are free to download. Zef sells 3 in-app purchases, starting at $6.99 per month. iQFoil Class asks for nothing beyond the download.

Zef ships an update fortnightly, iQFoil Class every 18 months. The most recent releases landed on October 14, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Zef | iQFoil Class |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (41 ratings)](https://appshunter.io/ios/app/zef/id1447673572/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 90.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 18 months |
| Monetization | Freemium | — |
| Size | 43 MB | 64 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David Kieffer](https://appshunter.io/developer/1341935892) | [Sailti](https://appshunter.io/developer/960712124) |

## What reviewers say

### Zef

[App page](https://appshunter.io/ios/app/zef/id1447673572)

Track and organize your rides for various sports, including nautical activities. Features include race organization, jump height estimation, and social sharing of sessions and spots. Integrates with Health app for comprehensive data recording.

**Highlights:** Race organization and championship management, Jump height estimation using drone technology, Support for a wide range of sports, GPX file import from watches, Health app integration, Social feed for friends and spots, Live tracking and notifications

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium for one  month | $6.99 | per month |
| Summit for one year | $26.99 | per year |
| Premium for one year | $34.99 | per year |


### iQFoil Class

[App page](https://appshunter.io/ios/app/iqfoil-class/id1640434269)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zef free?

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

### Is iQFoil Class free?

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

### Do Zef or iQFoil Class have ads?

Neither Zef nor iQFoil Class shows ads.

### Which is updated more often, Zef or iQFoil Class?

Zef ships an update fortnightly, and iQFoil Class every 18 months. Most recently, Zef was updated on October 14, 2026 and iQFoil Class on September 26, 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.*