# Boiler Efficiency vs Heat Exchanger Area

The clearest difference is price: Heat Exchanger Area at $1.99 against Boiler Efficiency's $5.99. Boiler Efficiency's advantage is update cadence (every 10 months vs every 28 months) and iOS requirement (14.3 vs 16.1). On ads, in-app purchases and device support there is nothing between them.

Boiler Efficiency costs $5.99 and Heat Exchanger Area $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Boiler Efficiency ships an update every 10 months, Heat Exchanger Area every 28 months. The most recent releases landed on September 16, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Boiler Efficiency | Heat Exchanger Area |
| --- | --- | --- |
| Price | $5.99 | **$1.99** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 28 months |
| Monetization | 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


### Heat Exchanger Area

[App page](https://appshunter.io/ios/app/heat-exchanger-area/id1490690839)

**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 Heat Exchanger Area free?

Heat Exchanger Area costs $1.99, with no in-app purchases.

### Do Boiler Efficiency or Heat Exchanger Area have ads?

Neither Boiler Efficiency nor Heat Exchanger Area shows ads.

### Which is updated more often, Boiler Efficiency or Heat Exchanger Area?

Boiler Efficiency ships an update every 10 months, and Heat Exchanger Area every 28 months. Most recently, Boiler Efficiency was updated on September 16, 2026 and Heat Exchanger Area on September 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*