# PredictWind Race Tracker vs iSailGPS NZ

The clearest difference is price: PredictWind Race Tracker at Free against iSailGPS NZ's $0.99. iSailGPS NZ's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.6). On review sentiment, update cadence, ads and device support there is nothing between them.

PredictWind Race Tracker is free to download; iSailGPS NZ costs $0.99 up front. PredictWind Race Tracker sells 2 one-off in-app purchases. iSailGPS NZ asks for nothing beyond the download.

PredictWind Race Tracker ships an update every 6 weeks, iSailGPS NZ monthly. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | PredictWind Race Tracker | iSailGPS NZ |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/predictwind-race-tracker/id569052528/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **77.8% of reviews** | 71.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 22 MB | 9 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PredictWind Limited](https://appshunter.io/developer/477048590) | [James Associates Inc.](https://appshunter.io/developer/351499178) |

## What reviewers say

### PredictWind Race Tracker

[App page](https://appshunter.io/ios/app/predictwind-race-tracker/id569052528)

This app enables yacht race participants to send GPS tracking data for live viewing by spectators or event organizers. You can also set up personal tracking and share a link for friends to follow your progress in real-time. The app offers race replay functionality for strategy evaluation.

**Highlights:** Live GPS tracking for races, Spectator viewing mode, Personal tracking with shareable link, Real-time progress updates, Race replay for strategy analysis, Safety monitoring for organizers

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Tracking for 12 months | $2.99 | one-time |
| Unlimited Tracking for 3 months | $2.99 | one-time |


### iSailGPS NZ

[App page](https://appshunter.io/ios/app/isailgps-nz-nautical-charts/id911580513)

This app transforms your iPhone or iPad into a powerful GPS receiver for nautical navigation, even offline. It provides detailed nautical charts and tools for tracking, waypoint management, and route planning. Essential for safe return to port during emergencies.

**Highlights:** Offline LINZ RNC Nautical Charts, GPS tracking and recording, Waypoint and route creation, Man Overboard (MOB) function, Sun and moon position data, GPX, KML, TCX file import/export, Customizable units

**In-app purchases:** none


## Frequently asked questions

### Is PredictWind Race Tracker free?

PredictWind Race Tracker is free to download, with in-app purchases available.

### Is iSailGPS NZ free?

iSailGPS NZ costs $0.99, with no in-app purchases.

### Do PredictWind Race Tracker or iSailGPS NZ have ads?

Neither PredictWind Race Tracker nor iSailGPS NZ shows ads.

### Which is updated more often, PredictWind Race Tracker or iSailGPS NZ?

PredictWind Race Tracker ships an update every 6 weeks, and iSailGPS NZ monthly. Most recently, PredictWind Race Tracker was updated on October 21, 2026 and iSailGPS NZ on October 14, 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.*