# IODA Optimist vs NSJ Tracker

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.

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.

## The numbers

| Metric | IODA Optimist | NSJ Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 67 MB | 0 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sailti](https://appshunter.io/developer/960712124) | [Keita Yukinori](https://appshunter.io/developer/6783640543) |

## What reviewers say

### IODA Optimist

[App page](https://appshunter.io/ios/app/ioda-optimist/id6504682148)

**Features:** macOS Compatibility

**In-app purchases:** none


### NSJ Tracker

[App page](https://appshunter.io/ios/app/nsj-tracker/id6783640541)

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

**In-app purchases:** none


## Frequently asked questions

### Is IODA Optimist free?

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

### Is NSJ Tracker free?

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

### Do IODA Optimist or NSJ Tracker have ads?

Neither IODA Optimist nor NSJ Tracker shows ads.

### Which is updated more often, IODA Optimist or NSJ Tracker?

IODA Optimist ships an update every 2 months, and NSJ Tracker every 6 days. Most recently, IODA Optimist was updated on September 18, 2026 and NSJ Tracker on October 2, 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.*