# Boat Instruments vs ai.Orthodrome

The clearest difference is price: ai.Orthodrome at Free against Boat Instruments's $6.99. ai.Orthodrome also leads on review sentiment (100% vs 80%). Boat Instruments's advantage is in-app purchases (none vs 3) and iOS requirement (8.0 vs 18.0). On ads and device support there is nothing between them.

ai.Orthodrome is free to download; Boat Instruments costs $6.99 up front. ai.Orthodrome sells 3 one-off in-app purchases. Boat Instruments asks for nothing beyond the download.

## The numbers

| Metric | Boat Instruments | ai.Orthodrome |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 19 MB | 8 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [FB Imray Laurie Norie & Wilson GmbH](https://appshunter.io/developer/1871410394) | [Narcyz Adamus](https://appshunter.io/developer/1092865008) |

## What reviewers say

### Boat Instruments

[App page](https://appshunter.io/ios/app/boat-instruments/id594170910)

This app provides AIS, GPS, and instrument data for boats, acting as a companion to onboard systems or a standalone GPS tool. It displays real-time data like depth, speed, and wind, and shows the position and course of nearby vessels with collision warnings.

**Highlights:** AIS and GPS data display, Real-time instrument readings, Collision detection warnings, Configurable instrument pages, NMEA bridge connectivity via WiFi, Target position and course tracking

**Features:** Vision Pro support

**In-app purchases:** none


### ai.Orthodrome

[App page](https://appshunter.io/ios/app/aiorthodrome/id6738966918)

Calculate the shortest distance between two points on a map and compare different routes. Export your route data in multiple formats or use the companion watch app for on-the-go navigation.

**Highlights:** Calculate orthodromes between points, Compare orthodrome with loxodrome, Export segments in PDF, CSV, GPX, Copy route data to clipboard, Intuitive interface, Watch version available

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5  Exports | $1.99 | one-time |
| 10 Exports | $2.99 | one-time |
| Full | $19.99 | one-time |


## Frequently asked questions

### Is Boat Instruments free?

Boat Instruments costs $6.99, with no in-app purchases.

### Is ai.Orthodrome free?

ai.Orthodrome is free to download, with in-app purchases available.

### Do Boat Instruments or ai.Orthodrome have ads?

Neither Boat Instruments nor ai.Orthodrome shows ads.

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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.*