# Nitro Swim vs HCI.

The clearest difference is review sentiment: Nitro Swim at 100% against HCI.'s 0%. Nitro Swim also leads on rating (5.0 vs 4.5). HCI.'s advantage is ratings volume (183 vs 5). On price, update cadence, ads and in-app purchases 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 holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: HCI. has 183 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 100% of Nitro Swim's written reviews are positive against 0% of HCI.'s.

Nitro Swim ships an update every 5 weeks, HCI. monthly. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Nitro Swim | HCI. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/nitro-swim/id1483784349/reviews)** | [4.5 (183 ratings)](https://appshunter.io/ios/app/hci/id6743832697/reviews) |
| Number of ratings | 5 | **183** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free | Free |
| Size | 58 MB | 111 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Nitro Swimming Bee Cave, LLC](https://appshunter.io/developer/1483784348) | [HCI SPORTS AND FITNESS LLC](https://appshunter.io/developer/1804832890) |

## 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


### HCI.

[App page](https://appshunter.io/ios/app/hci/id6743832697)

Manage your HCI Sports & Fitness membership with ease. Access facilities using a digital barcode, book and manage classes, and stay updated on facility news. Integrate with HealthKit to track your activity and stay motivated.

**Highlights:** Touchless digital barcode check-in, Digital class schedule and booking, Waitlist management for classes, Facility open play times updates, HealthKit activity data integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nitro Swim free?

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

### Is HCI. free?

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

### Which has better reviews, Nitro Swim or HCI.?

Nitro Swim is rated higher. Nitro Swim averages 5.0 out of 5 from 5 ratings, while HCI. averages 4.5 from 183 ratings.

### Do Nitro Swim or HCI. have ads?

Neither Nitro Swim nor HCI. shows ads.

### Which is updated more often, Nitro Swim or HCI.?

Nitro Swim ships an update every 5 weeks, and HCI. monthly. Most recently, Nitro Swim was updated on October 29, 2026 and HCI. on October 28, 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.*