# tcSpeeds vs CalypsoSailing

The clearest difference is in-app purchases: CalypsoSailing at none against tcSpeeds's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. tcSpeeds sells 1 one-off in-app purchase. CalypsoSailing asks for nothing beyond the download.

## The numbers

| Metric | tcSpeeds | CalypsoSailing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (10 ratings)](https://appshunter.io/ios/app/tcspeeds/id1441225371/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Monetization | Free | — |
| Size | 18 MB | 25 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [transitional continuum](https://appshunter.io/developer/1441225370) | [Calypso Instruments](https://appshunter.io/developer/928168289) |

## What reviewers say

### tcSpeeds

[App page](https://appshunter.io/ios/app/tcspeeds/id1441225371)

This app provides advanced sailing performance metrics using your device's GPS and sensors. It offers detailed speed, wind, and directional measurements, along with a proprietary performance index. Easily track your progress and compare it with others, with zero setup required.

**Highlights:** Advanced speed and velocity measurements, Proprietary Pilot Performance Index (PPI), Wind measurement with optional sensor, Waypoint navigation and tracking, Apple Watch extension, Real-time performance alerts

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Performance Features | $2.99 | one-time |


### CalypsoSailing

[App page](https://appshunter.io/ios/app/calypsosailing/id6801571633)

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

**In-app purchases:** none


## Frequently asked questions

### Is tcSpeeds free?

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

### Is CalypsoSailing free?

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

### Do tcSpeeds or CalypsoSailing have ads?

Neither tcSpeeds nor CalypsoSailing 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.*