# Heat Engineer vs GlobalPETS Forum

The clearest difference is in-app purchases: GlobalPETS Forum at none against Heat Engineer's 1. GlobalPETS Forum also leads on update cadence (every 4 weeks vs every 2 months). Heat Engineer's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

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

Heat Engineer ships an update every 2 months, GlobalPETS Forum every 4 weeks. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Heat Engineer | GlobalPETS Forum |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 78.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 306 MB | 138 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Heat Engineer Software Ltd](https://appshunter.io/developer/1461678894) | [Global PETS Community B.V.](https://appshunter.io/developer/1444766827) |

## 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 |


### GlobalPETS Forum

[App page](https://appshunter.io/ios/app/globalpets-forum/id6470938420)

**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 GlobalPETS Forum free?

GlobalPETS Forum is free to download, with no in-app purchases.

### Do Heat Engineer or GlobalPETS Forum have ads?

GlobalPETS Forum shows ads; Heat Engineer does not.

### Which is updated more often, Heat Engineer or GlobalPETS Forum?

Heat Engineer ships an update every 2 months, and GlobalPETS Forum every 4 weeks. Most recently, Heat Engineer was updated on October 18, 2026 and GlobalPETS Forum on October 8, 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.*