# Boiler Efficiency vs Pressure Vessel Thickness

The clearest difference is update cadence: Boiler Efficiency at every 10 months against Pressure Vessel Thickness's every 56 months. Boiler Efficiency also leads on iOS requirement (14.3 vs 16.1). Pressure Vessel Thickness's advantage is price ($2.99 vs $5.99). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

Boiler Efficiency costs $5.99 and Pressure Vessel Thickness $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Boiler Efficiency ships an update every 10 months, Pressure Vessel Thickness every 56 months. The most recent releases landed on September 16, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | Boiler Efficiency | Pressure Vessel Thickness |
| --- | --- | --- |
| Price | $5.99 | **$2.99** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 56 months |
| Monetization | Paid | Paid |
| Size | 2 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

### Boiler Efficiency

[App page](https://appshunter.io/ios/app/boiler-efficiency/id490506363)

Perform preliminary audits on boiler efficiency and identify various losses in steam generation. Customize boiler applications, compare fuel grades, and analyze heat balance and flue gas for potential savings and improvements.

**Highlights:** Boiler efficiency audits, Loss identification, Customizable boiler applications, Fuel grade comparison, Heat balance sheet, Flue gas analysis, CHP (Brayton) cycle analysis

**Features:** macOS Compatibility

**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 Boiler Efficiency free?

Boiler Efficiency costs $5.99, with no in-app purchases.

### Is Pressure Vessel Thickness free?

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

### Do Boiler Efficiency or Pressure Vessel Thickness have ads?

Neither Boiler Efficiency nor Pressure Vessel Thickness shows ads.

### Which is updated more often, Boiler Efficiency or Pressure Vessel Thickness?

Boiler Efficiency ships an update every 10 months, and Pressure Vessel Thickness every 56 months. Most recently, Boiler Efficiency was updated on September 16, 2026 and Pressure Vessel Thickness on August 24, 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.*