# Nitro Swim vs Circle C Aquatics

The clearest difference is update cadence: Nitro Swim at every 5 weeks against Circle C Aquatics's every 6 months. Circle C Aquatics'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.

Nitro Swim ships an update every 5 weeks, Circle C Aquatics every 6 months. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Nitro Swim | Circle C Aquatics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/nitro-swim/id1483784349/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | Free | — |
| Size | 58 MB | 40 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitro Swimming Bee Cave, LLC](https://appshunter.io/developer/1483784348) | [Circle C Homeowners Association, Inc](https://appshunter.io/developer/1669081367) |

## What reviewers say

### Nitro Swim

[App page](https://appshunter.io/ios/app/nitro-swim/id1483784349)

Track your swimmer's progress, view class schedules, and register for swimming lessons. Receive push notifications to stay updated on class availability and your child's development. Experience a unique approach to learning to swim.

**Highlights:** View class schedules, Check swimmer progress, Register for classes, Push notifications, Class availability updates

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Circle C Aquatics

[App page](https://appshunter.io/ios/app/circle-c-aquatics/id1669081035)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Nitro Swim free?

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

### Is Circle C Aquatics free?

Circle C Aquatics is free to download, with no in-app purchases.

### Do Nitro Swim or Circle C Aquatics have ads?

Neither Nitro Swim nor Circle C Aquatics shows ads.

### Which is updated more often, Nitro Swim or Circle C Aquatics?

Nitro Swim ships an update every 5 weeks, and Circle C Aquatics every 6 months. Most recently, Nitro Swim was updated on October 6, 2026 and Circle C Aquatics on October 3, 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.*