# Sailfish Swim Academy vs ClassSync

The clearest difference is update cadence: Sailfish Swim Academy at every 9 days against ClassSync's every 9 months. ClassSync's advantage is iOS requirement (13.0 vs 15.1). 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.

Sailfish Swim Academy ships an update every 9 days, ClassSync every 9 months. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Sailfish Swim Academy | ClassSync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 9 months |
| Size | 52 MB | 30 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [My Aone Learning](https://appshunter.io/developer/824087514) | [Classsync Technology](https://appshunter.io/developer/1750642602) |

## What reviewers say

### Sailfish Swim Academy

[App page](https://appshunter.io/ios/app/sailfish-swim-academy/id1595455573)

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

**In-app purchases:** none


### ClassSync

[App page](https://appshunter.io/ios/app/classsync/id6504002003)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sailfish Swim Academy free?

Sailfish Swim Academy is free to download, with no in-app purchases.

### Is ClassSync free?

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

### Do Sailfish Swim Academy or ClassSync have ads?

Neither Sailfish Swim Academy nor ClassSync shows ads.

### Which is updated more often, Sailfish Swim Academy or ClassSync?

Sailfish Swim Academy ships an update every 9 days, and ClassSync every 9 months. Most recently, Sailfish Swim Academy was updated on October 15, 2026 and ClassSync on October 5, 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.*