# Second Wind Swim School vs Spark Cubing

The clearest difference is in-app purchases: Second Wind Swim School at none against Spark Cubing's 1. Spark Cubing's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Spark Cubing sells 1 one-off in-app purchase. Second Wind Swim School asks for nothing beyond the download.

## The numbers

| Metric | Second Wind Swim School | Spark Cubing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 42 MB | 119 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Member Retention Systems PTY LTD](https://appshunter.io/developer/1718495379) | [SPARK EDTECH PTE. LIMITED](https://appshunter.io/developer/1594812827) |

## What reviewers say

### Second Wind Swim School

[App page](https://appshunter.io/ios/app/second-wind-swim-school/id6742015377)

**Features:** macOS Compatibility

**In-app purchases:** none


### Spark Cubing

[App page](https://appshunter.io/ios/app/spark-cubing/id6743437080)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spark Cubing one-time course | $34.99 | one-time |


## Frequently asked questions

### Is Second Wind Swim School free?

Second Wind Swim School is free to download, with no in-app purchases.

### Is Spark Cubing free?

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

### Do Second Wind Swim School or Spark Cubing have ads?

Neither Second Wind Swim School nor Spark Cubing shows ads.

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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.*