# Marine Insight e vs CHIEF.

The clearest difference is update cadence: Marine Insight e at fortnightly against CHIEF.'s every 2 months. Marine Insight e also leads on iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Marine Insight e ships an update fortnightly, CHIEF. every 2 months. The most recent releases landed on September 20, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Marine Insight e | CHIEF. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 17 MB | 44 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [MARINE INSIGHT](https://appshunter.io/developer/977636456) | [Maksym Bezagotiy](https://appshunter.io/developer/1873084962) |

## What reviewers say

### Marine Insight e

[App page](https://appshunter.io/ios/app/marine-insight-e-library/id6475720792)

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

**In-app purchases:** none


### CHIEF.

[App page](https://appshunter.io/ios/app/chief/id6758465675)

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

**In-app purchases:** none


## Frequently asked questions

### Is Marine Insight e free?

Marine Insight e is free to download, with no in-app purchases.

### Is CHIEF. free?

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

### Do Marine Insight e or CHIEF. have ads?

Neither Marine Insight e nor CHIEF. shows ads.

### Which is updated more often, Marine Insight e or CHIEF.?

Marine Insight e ships an update fortnightly, and CHIEF. every 2 months. Most recently, Marine Insight e was updated on September 20, 2026 and CHIEF. on September 27, 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.*