# iScubaSites vs nitroxCalc

The clearest difference is update cadence: iScubaSites at every 6 weeks against nitroxCalc's every 18 months. nitroxCalc's advantage is iOS requirement (9.0 vs 26.0). 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.

iScubaSites ships an update every 6 weeks, nitroxCalc every 18 months. The most recent releases landed on October 20, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | iScubaSites | nitroxCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8 ratings)](https://appshunter.io/ios/app/iscubasites/id1273730297/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 18 months |
| Monetization | Free | — |
| Size | 3 MB | 5 MB |
| Requires iOS | 26.0 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Arie Guttman](https://appshunter.io/developer/1029107890) | [CAP-REL](https://appshunter.io/developer/1405536766) |

## What reviewers say

### iScubaSites

[App page](https://appshunter.io/ios/app/iscubasites/id1273730297)

Discover scuba diving locations globally with this user-friendly app. Simply search a region to find available dive sites and access detailed information when provided. Explore the underwater world with ease.

**Highlights:** Worldwide diving site information, Location-based search, Detailed dive site information, Simple and intuitive interface, Explore underwater locations

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

**In-app purchases:** none


### nitroxCalc

[App page](https://appshunter.io/ios/app/nitroxcalc/id1408060704)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iScubaSites free?

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

### Is nitroxCalc free?

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

### Do iScubaSites or nitroxCalc have ads?

Neither iScubaSites nor nitroxCalc shows ads.

### Which is updated more often, iScubaSites or nitroxCalc?

iScubaSites ships an update every 6 weeks, and nitroxCalc every 18 months. Most recently, iScubaSites was updated on October 20, 2026 and nitroxCalc on October 26, 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.*