# Boiler Efficiency vs Fluid Mechanics Calculator

The clearest difference is price: Fluid Mechanics Calculator at $2.99 against Boiler Efficiency's $5.99. Boiler Efficiency's advantage is iOS requirement (14.3 vs 16.1). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

Boiler Efficiency costs $5.99 and Fluid Mechanics Calculator $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, Fluid Mechanics Calculator every 7 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Boiler Efficiency | Fluid Mechanics Calculator |
| --- | --- | --- |
| Price | $5.99 | **$2.99** |
| Rating | — | **[4.5 (21 ratings)](https://appshunter.io/ios/app/fluid-mechanics-calculator/id526974981/reviews)** |
| Number of ratings | — | **21** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 7 months** |
| Monetization | Paid | Paid |
| Size | 2 MB | 11 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) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## 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, Vision Pro support

**In-app purchases:** none


### Fluid Mechanics Calculator

[App page](https://appshunter.io/ios/app/fluid-mechanics-calculator/id526974981)

This app provides 97 calculators for fluid mechanics and civil engineering parameters. It supports both Imperial (USCS) and Metric (SI) units, offering automatic and accurate calculations with unit changes.

**Highlights:** 97 fluid mechanics and civil engineering calculators, Supports SI and USCS (Imperial) units, Automatic calculations with unit changes, Wide range of parameters covered, Civil engineering applications

**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 Fluid Mechanics Calculator free?

Fluid Mechanics Calculator costs $2.99, with no in-app purchases.

### Do Boiler Efficiency or Fluid Mechanics Calculator have ads?

Neither Boiler Efficiency nor Fluid Mechanics Calculator shows ads.

### Which is updated more often, Boiler Efficiency or Fluid Mechanics Calculator?

Boiler Efficiency ships an update every 10 months, and Fluid Mechanics Calculator every 7 months. Most recently, Boiler Efficiency was updated on November 1, 2026 and Fluid Mechanics Calculator on November 6, 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.*