# Si vs Eclipse Navigator

The clearest difference is price: Si at Free against Eclipse Navigator's $2.99. Si also leads on iOS requirement (14.0 vs 18.0). Eclipse Navigator's advantage is update cadence (every 8 days vs monthly). On ads, in-app purchases and device support there is nothing between them.

Si is free to download; Eclipse Navigator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Si ships an update monthly, Eclipse Navigator every 8 days. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Si | Eclipse Navigator |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 8 days** |
| Size | 49 MB | 240 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [WeMa Mobile B.V.](https://appshunter.io/developer/494886354) | [Marcel Kalse](https://appshunter.io/developer/6797856318) |

## What reviewers say

### Si

[App page](https://appshunter.io/ios/app/si-es-an/id1616635877)

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

**In-app purchases:** none


### Eclipse Navigator

[App page](https://appshunter.io/ios/app/eclipse-navigator/id6797856316)

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

**In-app purchases:** none


## Frequently asked questions

### Is Si free?

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

### Is Eclipse Navigator free?

Eclipse Navigator costs $2.99, with no in-app purchases.

### Do Si or Eclipse Navigator have ads?

Neither Si nor Eclipse Navigator shows ads.

### Which is updated more often, Si or Eclipse Navigator?

Si ships an update monthly, and Eclipse Navigator every 8 days. Most recently, Si was updated on October 7, 2026 and Eclipse Navigator on October 3, 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.*