# Nautical Calculator Preview vs Logarithmic Scale

The clearest difference is in-app purchases: Nautical Calculator Preview at none against Logarithmic Scale's 1. Nautical Calculator Preview also leads on device support. Logarithmic Scale's advantage is update cadence (every 8 days vs every 2 weeks) and ratings volume (4 vs 1). On price and rating there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Nautical Calculator Preview against 5.0 for Logarithmic Scale. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

Nautical Calculator Preview ships an update every 2 weeks, Logarithmic Scale every 8 days. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Nautical Calculator Preview | Logarithmic Scale |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/nautical-calculator-preview/id1534074231/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/logarithmic-scale/id6756836546/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | — |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | Ad-supported | **Free** |
| Size | 33 MB | 6 MB |
| Requires iOS | 17.0 | **15.4** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [The Vu Cong](https://appshunter.io/developer/1532372627) | [GEORGII BABUKHADIIA](https://appshunter.io/developer/1859099132) |

## What reviewers say

### Nautical Calculator Preview

[App page](https://appshunter.io/ios/app/nautical-calculator-preview/id1534074231)

This app provides comprehensive tools for marine navigation, including real-time ship movement, route planning, and advanced sailing calculations. It also offers features for collision avoidance, maneuvering, and learning maritime regulations and signaling.

**Highlights:** Real-time ship movement, Route planning, Mercator and Great Circle sailing, Collision avoidance, Maneuvering calculations, COLREGs and maritime signaling, Offline GPS

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

**In-app purchases:** none


### Logarithmic Scale

[App page](https://appshunter.io/ios/app/logarithmic-scale/id6756836546)

Calculate travel time based on distance and average speed. Ideal for calculating estimated arrival times for mechanical ships.

**Highlights:** Passage time calculations, ETA estimation, Speed and distance input, Mechanical ship focus

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Nautical Calculator Preview free?

Nautical Calculator Preview is free to download, with no in-app purchases.

### Is Logarithmic Scale free?

Logarithmic Scale is free to download, with in-app purchases available.

### Which has better reviews, Nautical Calculator Preview or Logarithmic Scale?

Nautical Calculator Preview and Logarithmic Scale are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Which is updated more often, Nautical Calculator Preview or Logarithmic Scale?

Nautical Calculator Preview ships an update every 2 weeks, and Logarithmic Scale every 8 days. Most recently, Nautical Calculator Preview was updated on October 7, 2026 and Logarithmic Scale on October 2, 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.*