# FixFolio vs Duct Calculator

The clearest difference is price: Duct Calculator at Free against FixFolio's $2.99. Duct Calculator also leads on iOS requirement (17.0 vs 26.2). FixFolio's advantage is in-app purchases (none vs 1). On update cadence, ads and device support there is nothing between them.

Duct Calculator is free to download; FixFolio costs $2.99 up front. Duct Calculator sells 1 in-app purchase, starting at $9.99 per year. FixFolio asks for nothing beyond the download.

FixFolio ships an update every 8 days, Duct Calculator fortnightly. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | FixFolio | Duct Calculator |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fixfolio/id6757930862/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Fortnightly |
| Monetization | Paid | — |
| Size | 9 MB | 8 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [David Dean](https://appshunter.io/developer/1869717437) | [Vladimir Lukashov](https://appshunter.io/developer/6783697231) |

## What reviewers say

### FixFolio

[App page](https://appshunter.io/ios/app/fixfolio/id6757930862)

Organize your home with a digital logbook. Track repairs, manage warranties, schedule maintenance, map your breaker panel, and store contractor contacts. Keep your home's history and essential information in one secure place.

**Highlights:** Repair & Improvement Log, Warranty Tracking, Maintenance Reminders, Breaker Panel Mapping, Contractor Directory, Photo & Attachment Storage, iCloud Sync

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

**In-app purchases:** none


### Duct Calculator

[App page](https://appshunter.io/ios/app/duct-calculator-hvac-sizing/id6789039757)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ductulator Pro | $9.99 | per year |


## Frequently asked questions

### Is FixFolio free?

FixFolio costs $2.99, with no in-app purchases.

### Is Duct Calculator free?

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

### Do FixFolio or Duct Calculator have ads?

Neither FixFolio nor Duct Calculator shows ads.

### Which is updated more often, FixFolio or Duct Calculator?

FixFolio ships an update every 8 days, and Duct Calculator fortnightly. Most recently, FixFolio was updated on October 24, 2026 and Duct Calculator on October 20, 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.*