# Radar Plotting vs Logarithmic Scale

Radar Plotting and Logarithmic Scale both sit at 5.0 stars, but that hides the real split: 100% of Logarithmic Scale's written reviews are positive against 50% of Radar Plotting's. Logarithmic Scale also leads on price (Free vs $7.99) and update cadence (every 8 days vs every 5 months). Radar Plotting's advantage is in-app purchases (none vs 1) and device support. On rating and iOS requirement there is nothing between them.

Logarithmic Scale is free to download; Radar Plotting costs $7.99 up front. Logarithmic Scale sells 1 one-off in-app purchase. Radar Plotting asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Radar Plotting against 5.0 for Logarithmic Scale. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews are what separate them: 50% of Radar Plotting's written reviews are positive against 100% of Logarithmic Scale's.

Radar Plotting ships an update every 5 months, Logarithmic Scale every 8 days. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Radar Plotting | Logarithmic Scale |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/radar-plotting/id1470598201/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/logarithmic-scale/id6756836546/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 5 months | **Every 8 days** |
| Monetization | Paid | **Free** |
| Size | 17 MB | 6 MB |
| Requires iOS | **15.0** | 15.4 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Giacomo Gabriele](https://appshunter.io/developer/1455745031) | [GEORGII BABUKHADIIA](https://appshunter.io/developer/1859099132) |

## What reviewers say

### Radar Plotting

[App page](https://appshunter.io/ios/app/radar-plotting/id1470598201)

This app offers advanced radar plotting for maritime navigation. It allows users to calculate critical encounter data, plan maneuvers, and analyze complex scenarios with interactive visualizations. Designed for training and decision support, it aids in understanding vessel interactions.

**Highlights:** Kinematic calculations (CPA/TCPA, aspect), True and relative speed estimation, Evasive maneuver planning with COLREG guidance, Rescue and escape scenario planning, Double-target analysis, Current and drift estimation, Interactive radar canvas with playback

**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 Radar Plotting free?

Radar Plotting costs $7.99, with no in-app purchases.

### Is Logarithmic Scale free?

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

### Which has better reviews, Radar Plotting or Logarithmic Scale?

Radar Plotting 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, Radar Plotting or Logarithmic Scale?

Radar Plotting ships an update every 5 months, and Logarithmic Scale every 8 days. Most recently, Radar Plotting was updated on October 8, 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.*