# Boiler Efficiency vs Screw Conveyor Pro

The clearest difference is update cadence: Boiler Efficiency at every 10 months against Screw Conveyor Pro's every 41 months. Boiler Efficiency also leads on iOS requirement (14.3 vs 16.1). Screw Conveyor Pro's advantage is price ($3.99 vs $5.99). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

Boiler Efficiency costs $5.99 and Screw Conveyor Pro $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Boiler Efficiency ships an update every 10 months, Screw Conveyor Pro every 41 months. The most recent releases landed on September 16, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | Boiler Efficiency | Screw Conveyor Pro |
| --- | --- | --- |
| Price | $5.99 | **$3.99** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 41 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


### Screw Conveyor Pro

[App page](https://appshunter.io/ios/app/screw-conveyor-pro/id1487421019)

Calculate screw conveyor capacity, speed, and power requirements with this utility app. It requires specific inputs like screw diameter, RPM, and material properties to provide accurate engineering calculations for professionals in fabrication and conveying equipment manufacturing.

**Highlights:** Calculate material carrying capacity, Calculate conveyor speed, Calculate screw conveyor power requirement, Input screw diameter, Input material specific gravity, Input conveyor length

**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 Screw Conveyor Pro free?

Screw Conveyor Pro costs $3.99, with no in-app purchases.

### Do Boiler Efficiency or Screw Conveyor Pro have ads?

Neither Boiler Efficiency nor Screw Conveyor Pro shows ads.

### Which is updated more often, Boiler Efficiency or Screw Conveyor Pro?

Boiler Efficiency ships an update every 10 months, and Screw Conveyor Pro every 41 months. Most recently, Boiler Efficiency was updated on September 16, 2026 and Screw Conveyor Pro on August 27, 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.*