# MarinersApps vs Nautical Calculator.

The clearest difference is in-app purchases: MarinersApps at none against Nautical Calculator.'s 1. MarinersApps also leads on iOS requirement (11.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Nautical Calculator. sells 1 one-off in-app purchase. MarinersApps asks for nothing beyond the download.

MarinersApps ships an update every 3 months, Nautical Calculator. every 6 months. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | MarinersApps | Nautical Calculator. |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | Free | — |
| Size | 79 MB | 42 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Rajesh Kumar Patro](https://appshunter.io/developer/1187838851) | [Nanjibhai Gorasiya](https://appshunter.io/developer/1834066312) |

## What reviewers say

### MarinersApps

[App page](https://appshunter.io/ios/app/marinersapps/id1187838852)

This app provides essential shipping industry information for seafarers, shipping companies, and maritime colleges. It functions offline, allowing access to data without an internet connection, making it a valuable resource at sea or on land.

**Highlights:** Shipping industry information, Offline functionality, Resource for seafarers, Useful for shipping companies, Valuable for maritime colleges

**Features:** macOS Compatibility

**In-app purchases:** none


### Nautical Calculator.

[App page](https://appshunter.io/ios/app/nautical-calculator/id6755711720)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $12.99 | one-time |


## Frequently asked questions

### Is MarinersApps free?

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

### Is Nautical Calculator. free?

Nautical Calculator. is free to download, with in-app purchases available.

### Do MarinersApps or Nautical Calculator. have ads?

Neither MarinersApps nor Nautical Calculator. shows ads.

### Which is updated more often, MarinersApps or Nautical Calculator.?

MarinersApps ships an update every 3 months, and Nautical Calculator. every 6 months. Most recently, MarinersApps was updated on October 15, 2026 and Nautical Calculator. on October 13, 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.*