# FabCalc vs Heat Pump Sizing Canada

The clearest difference is in-app purchases: Heat Pump Sizing Canada at none against FabCalc's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. FabCalc sells 4 in-app purchases, starting at $4.99 per month. Heat Pump Sizing Canada asks for nothing beyond the download.

FabCalc ships an update weekly, Heat Pump Sizing Canada every 10 days. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | FabCalc | Heat Pump Sizing Canada |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/heat-pump-sizing-canada/id6784766138/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | — | Free |
| Size | 3 MB | 46 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Double Vision USA LLC](https://appshunter.io/developer/1894678139) | [Mike Watson](https://appshunter.io/developer/1848411021) |

## What reviewers say

### FabCalc

[App page](https://appshunter.io/ios/app/fabcalc-flat-pattern-dxf/id6781708798)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FabCalc Pro Monthly | $4.99 | per month |
| FabCalc Pro Yearly | $29.99 | per year |
| Fab Shop Bundle | $119.99 | one-time |
| ShopCalc Pro Lifetime | $129.99 | one-time |


### Heat Pump Sizing Canada

[App page](https://appshunter.io/ios/app/heat-pump-sizing-canada/id6784766138)

Calculate precise heat pump sizes for Canadian homes using CSA F280 methodology. Get estimates for homeowners and detailed reports for contractors, including rebate and permit application data. Supports offline use and LiDAR scanning for accurate measurements.

**Highlights:** CSA F280 heat loss and heat gain calculation, NRCan weather data integration, Heat pump sizing and balance point calculation, Pro Mode with advanced inputs for contractors, Offline functionality, LiDAR room scanning for measurements, Professional PDF report generation

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

**In-app purchases:** none


## Frequently asked questions

### Is FabCalc free?

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

### Is Heat Pump Sizing Canada free?

Heat Pump Sizing Canada is free to download, with no in-app purchases.

### Do FabCalc or Heat Pump Sizing Canada have ads?

Neither FabCalc nor Heat Pump Sizing Canada shows ads.

### Which is updated more often, FabCalc or Heat Pump Sizing Canada?

FabCalc ships an update weekly, and Heat Pump Sizing Canada every 10 days. Most recently, FabCalc was updated on October 5, 2026 and Heat Pump Sizing Canada on October 13, 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.*