IODA Optimist vs NSJ Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IODA Optimist
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Official mobile application of the IODA (International Optimist Dinghy Association) Championships. Live information on all races; constant results updates; daily news, images and videos of the regatta are some of the examples offered by this App to enable you to track down to the minute everything that is going on during every Optimist class major championship. Furthermore, if you wish so, you can receive alerts of any relevant information from any of the races or teams you wish to follow closely. With this App, live the major IODA Major Championships wherever you may be as you had never imagined! 3392
NSJ Tracker
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GPS tracker app for yacht racing. Sends real-time position, speed, and course data to the race management server. ヨットレース用GPSトラッカーアプリ。位置・速度・針路データをリアルタイムでレース管理サーバーに送信します。
Screenshots
Verdict
The clearest difference is update cadence: NSJ Tracker at every 6 days against IODA Optimist's every 2 months. IODA Optimist's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 17.6). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
IODA Optimist ships an update every 2 months, NSJ Tracker every 6 days. The most recent releases landed on September 18, 2026 and October 2, 2026 respectively.
| Parameter | IODA Optimist | NSJ Tracker |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 67 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Sailti | Keita Yukinori |
In-app purchases
IODA Optimist
No in-app purchases
NSJ Tracker
No in-app purchases
Questions
Is IODA Optimist free?
Is NSJ Tracker free?
Do IODA Optimist or NSJ Tracker have ads?
Which is updated more often, IODA Optimist or NSJ Tracker?
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