# Fluid Pressure Drop vs Pressure Vessel Thickness

The clearest difference is update cadence: Fluid Pressure Drop at every 12 months against Pressure Vessel Thickness's every 56 months. Fluid Pressure Drop also leads on iOS requirement (14.3 vs 16.1). Pressure Vessel Thickness's advantage is price ($2.99 vs $4.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Fluid Pressure Drop costs $4.99 and Pressure Vessel Thickness $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Fluid Pressure Drop ships an update every 12 months, Pressure Vessel Thickness every 56 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Fluid Pressure Drop | Pressure Vessel Thickness |
| --- | --- | --- |
| Price | $4.99 | **$2.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fluid-pressure-drop/id467174085/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 12 months** | Every 56 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 1 MB |
| Requires iOS | **14.3** | 16.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Kaup Shenoy Associates](https://appshunter.io/developer/460148822) | [Imran Pinjara](https://appshunter.io/developer/1484488781) |

## What reviewers say

### Fluid Pressure Drop

[App page](https://appshunter.io/ios/app/fluid-pressure-drop/id467174085)

Calculate fluid transmission energy loss for industrial applications. Choose from common fluids, pipe schedules, and materials to determine pressure loss. Supports custom fluids and includes calculations for valves and fittings.

**Highlights:** Pressure loss computation, Custom fluid creation, Valve and fitting loss calculation, Multiple fluid options, Various pipe schedules and materials, Unit of measurement selection

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

**In-app purchases:** none


### Pressure Vessel Thickness

[App page](https://appshunter.io/ios/app/pressure-vessel-thickness/id1492098075)

Calculate the required design and nominal thickness for various pressure vessel components according to ASME Section VIII Div 1 codes. This tool assists designers in determining the necessary thickness for shell, hemispherical, torispherical, ellipsoidal, and conical heads under internal pressure.

**Highlights:** Calculate design thickness, Calculate nominal thickness, Shell thickness calculation, Head thickness calculation (Hemi, Tori, Ellipsoidal), Cone thickness calculation, ASME Section VIII Div 1 compliance

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

**In-app purchases:** none


## Frequently asked questions

### Is Fluid Pressure Drop free?

Fluid Pressure Drop costs $4.99, with no in-app purchases.

### Is Pressure Vessel Thickness free?

Pressure Vessel Thickness costs $2.99, with no in-app purchases.

### Do Fluid Pressure Drop or Pressure Vessel Thickness have ads?

Neither Fluid Pressure Drop nor Pressure Vessel Thickness shows ads.

### Which is updated more often, Fluid Pressure Drop or Pressure Vessel Thickness?

Fluid Pressure Drop ships an update every 12 months, and Pressure Vessel Thickness every 56 months. Most recently, Fluid Pressure Drop was updated on November 6, 2026 and Pressure Vessel Thickness on November 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.*