# iQFoil Class vs Trace Zone

The clearest difference is in-app purchases: iQFoil Class at none against Trace Zone's 2. iQFoil Class also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.0). Trace Zone's advantage is update cadence (every 2 weeks vs every 18 months). On price and device support there is nothing between them.

Both are free to download. Trace Zone sells 2 in-app purchases, starting at $4.99 per month. iQFoil Class asks for nothing beyond the download.

iQFoil Class ships an update every 18 months, Trace Zone every 2 weeks. The most recent releases landed on September 26, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | iQFoil Class | Trace Zone |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 18 months | **Every 2 weeks** |
| Size | 64 MB | 118 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Sailti](https://appshunter.io/developer/960712124) | [OCEAN LABS LIMITED](https://appshunter.io/developer/1536082400) |

## What reviewers say

### iQFoil Class

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Trace Zone

[App page](https://appshunter.io/ios/app/trace-zone/id6745051522)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trace Premium Monthly | $4.99 | per month |
| Trace Premium Annual | $34.99 | per year |


## Frequently asked questions

### Is iQFoil Class free?

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

### Is Trace Zone free?

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

### Do iQFoil Class or Trace Zone have ads?

Trace Zone shows ads; iQFoil Class does not.

### Which is updated more often, iQFoil Class or Trace Zone?

iQFoil Class ships an update every 18 months, and Trace Zone every 2 weeks. Most recently, iQFoil Class was updated on September 26, 2026 and Trace Zone on September 20, 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.*