# KOil vs Marine Insight e

The clearest difference is update cadence: Marine Insight e at fortnightly against KOil's every 38 months. Marine Insight e also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.6). 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.

KOil ships an update every 38 months, Marine Insight e fortnightly. The most recent releases landed on September 29, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | KOil | Marine Insight e |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Fortnightly** |
| Size | 40 MB | 17 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Khaled Alsalem](https://appshunter.io/developer/1441688302) | [MARINE INSIGHT](https://appshunter.io/developer/977636456) |

## What reviewers say

### KOil

[App page](https://appshunter.io/ios/app/koil/id1446544213)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is KOil free?

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

### Is Marine Insight e free?

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

### Do KOil or Marine Insight e have ads?

Neither KOil nor Marine Insight e shows ads.

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

KOil ships an update every 38 months, and Marine Insight e fortnightly. Most recently, KOil was updated on September 29, 2026 and Marine Insight e on September 20, 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.*