# Pressure Vessel Thickness vs Acceleration Calculator Plus

The clearest difference is update cadence: Acceleration Calculator Plus at every 20 months against Pressure Vessel Thickness's every 56 months. On price, ads, in-app purchases and device support there is nothing between them.

Pressure Vessel Thickness costs $2.99 and Acceleration Calculator Plus $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pressure Vessel Thickness ships an update every 56 months, Acceleration Calculator Plus every 20 months. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Pressure Vessel Thickness | Acceleration Calculator Plus |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 56 months | **Every 20 months** |
| Monetization | Paid | — |
| Size | 1 MB | 1 MB |
| Requires iOS | **16.1** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Imran Pinjara](https://appshunter.io/developer/1484488781) | [Nitrio](https://appshunter.io/developer/321121189) |

## What reviewers say

### 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


### Acceleration Calculator Plus

[App page](https://appshunter.io/ios/app/acceleration-calculator-plus/id1658922875)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pressure Vessel Thickness free?

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

### Is Acceleration Calculator Plus free?

Acceleration Calculator Plus costs $2.99, with no in-app purchases.

### Do Pressure Vessel Thickness or Acceleration Calculator Plus have ads?

Neither Pressure Vessel Thickness nor Acceleration Calculator Plus shows ads.

### Which is updated more often, Pressure Vessel Thickness or Acceleration Calculator Plus?

Pressure Vessel Thickness ships an update every 56 months, and Acceleration Calculator Plus every 20 months. Most recently, Pressure Vessel Thickness was updated on October 17, 2026 and Acceleration Calculator Plus on October 18, 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.*