# Pressure Vessel Thickness vs StressTable2021

The clearest difference is price: StressTable2021 at Free against Pressure Vessel Thickness's $2.99. StressTable2021 also leads on device support (4 vs 2) and iOS requirement (13.0 vs 16.1). Pressure Vessel Thickness's advantage is in-app purchases (none vs 1). On ads there is nothing between them.

StressTable2021 is free to download; Pressure Vessel Thickness costs $2.99 up front. StressTable2021 sells 1 one-off in-app purchase. Pressure Vessel Thickness asks for nothing beyond the download.

## The numbers

| Metric | Pressure Vessel Thickness | StressTable2021 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 56 months | — |
| Monetization | Paid | — |
| Size | 1 MB | 20 MB |
| Requires iOS | 16.1 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | +4 | 17+ |
| Developer | [Imran Pinjara](https://appshunter.io/developer/1484488781) | [Shabbir Ahmed](https://appshunter.io/developer/1083166021) |

## 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


### StressTable2021

[App page](https://appshunter.io/ios/app/stresstable2021/id6461216630)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Non-Consumable Subscription | $9.99 | one-time |


## Frequently asked questions

### Is Pressure Vessel Thickness free?

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

### Is StressTable2021 free?

StressTable2021 is free to download, with in-app purchases available.

### Do Pressure Vessel Thickness or StressTable2021 have ads?

Neither Pressure Vessel Thickness nor StressTable2021 shows ads.

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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.*