# Differential Pressure vs Trident Cockpit

The clearest difference is update cadence: Trident Cockpit at every 9 days against Differential Pressure's every 4 months. 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.

Differential Pressure ships an update every 4 months, Trident Cockpit every 9 days. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Differential Pressure | Trident Cockpit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/trident-cockpit/id1501545121/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 4 MB | 67 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Kane Asia Inc.](https://appshunter.io/developer/1542732944) | [Dmitriy Borovikov](https://appshunter.io/developer/1336393458) |

## What reviewers say

### Differential Pressure

[App page](https://appshunter.io/ios/app/differential-pressure/id1099444569)

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

**In-app purchases:** none


### Trident Cockpit

[App page](https://appshunter.io/ios/app/trident-cockpit/id1501545121)

Control your underwater drone with this app. Stream live video, manage camera settings, and record your dives. It also allows you to view and download past dive footage and monitor drone maintenance data.

**Highlights:** Live drone video streaming, Gamepad control support, Camera and light adjustments, Record and geotag pilot video, View past dive footage, Monitor drone maintenance data, Payload control (GoPro HERO 3/3+)

**In-app purchases:** none


## Frequently asked questions

### Is Differential Pressure free?

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

### Is Trident Cockpit free?

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

### Do Differential Pressure or Trident Cockpit have ads?

Neither Differential Pressure nor Trident Cockpit shows ads.

### Which is updated more often, Differential Pressure or Trident Cockpit?

Differential Pressure ships an update every 4 months, and Trident Cockpit every 9 days. Most recently, Differential Pressure was updated on October 15, 2026 and Trident Cockpit 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.*