# Heat Engineer vs LEADSHUB APP

The clearest difference is in-app purchases: LEADSHUB APP at none against Heat Engineer's 1. Heat Engineer's advantage is update cadence (every 2 months vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Heat Engineer sells 1 one-off in-app purchase. LEADSHUB APP asks for nothing beyond the download.

Heat Engineer ships an update every 2 months, LEADSHUB APP every 7 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Heat Engineer | LEADSHUB APP |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 78.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | — |
| Size | 306 MB | 310 MB |
| Requires iOS | **16.4** | 16.6 |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Heat Engineer Software Ltd](https://appshunter.io/developer/1461678894) | [Trades Gang](https://appshunter.io/developer/1608051159) |

## What reviewers say

### Heat Engineer

[App page](https://appshunter.io/ios/app/heat-engineer/id879510552)

This app assists heating engineers and surveyors in collecting property data for heating system installations. It supports heat loss reports for various technologies and includes tools for sound assessments and quick estimations. Data is automatically saved for later review and amendment.

**Highlights:** Heat loss survey for BS EN 12831, CIBSE, and MCS standards, MCS 020 sound assessment for Air Source Heat Pumps, Quick heat loss estimator tool, Automatic data saving and history for amendments, Room-by-room heat loss calculation, Photo capture for rooms and installation locations, Fuel comparisons and running cost calculations

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MCS 020 PDF Report Token | $2.99 | one-time |


### LEADSHUB APP

[App page](https://appshunter.io/ios/app/leadshub-app/id1608051157)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Heat Engineer free?

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

### Is LEADSHUB APP free?

LEADSHUB APP is free to download, with no in-app purchases.

### Do Heat Engineer or LEADSHUB APP have ads?

Neither Heat Engineer nor LEADSHUB APP shows ads.

### Which is updated more often, Heat Engineer or LEADSHUB APP?

Heat Engineer ships an update every 2 months, and LEADSHUB APP every 7 months. Most recently, Heat Engineer was updated on November 1, 2026 and LEADSHUB APP on November 3, 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.*