# iRegatta vs SailSizeCalc

The clearest difference is in-app purchases: SailSizeCalc at none against iRegatta's 7. SailSizeCalc also leads on update cadence (daily vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. iRegatta sells 7 one-off in-app purchases. SailSizeCalc asks for nothing beyond the download.

iRegatta ships an update every 5 weeks, SailSizeCalc daily. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | iRegatta | SailSizeCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (4 ratings)](https://appshunter.io/ios/app/iregatta/id495549814/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 75 MB | 15 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zifigo](https://appshunter.io/developer/334632036) | [Rick Mc](https://appshunter.io/developer/1644648263) |

## What reviewers say

### iRegatta

[App page](https://appshunter.io/ios/app/iregatta/id495549814)

This app provides tactical regatta and cruising navigation features for sailors. It displays key sailing data, aids in race starts, and allows for waypoint navigation and track recording. Advanced features like NMEA and AIS data input are available via in-app purchases.

**Highlights:** Tactical regatta navigation, Cruising navigation, Key sailing data display, Race start countdown and line marking, Waypoint navigation, Track recording and export, Apple Watch app integration

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iRegatta Sailplan | $1.99 | one-time |
| eyeRegatta sync | $1.99 | one-time |
| Apple Watch integration | $2.99 | one-time |
| iRegatta AIS | $3.99 | one-time |
| iRegatta Race Analysis | $3.99 | one-time |
| iRegatta NMEA | $5.99 | one-time |
| iRegatta Basic | $9.99 | one-time |


### SailSizeCalc

[App page](https://appshunter.io/ios/app/sailsizecalc/id6746686907)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iRegatta free?

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

### Is SailSizeCalc free?

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

### Do iRegatta or SailSizeCalc have ads?

Neither iRegatta nor SailSizeCalc shows ads.

### Which is updated more often, iRegatta or SailSizeCalc?

iRegatta ships an update every 5 weeks, and SailSizeCalc daily. Most recently, iRegatta was updated on November 1, 2026 and SailSizeCalc on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*