# RoofCalc vs passcoder

The clearest difference is in-app purchases: passcoder at none against RoofCalc's 2. passcoder also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (12.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. RoofCalc sells 2 in-app purchases, starting at $1.99 per month. passcoder asks for nothing beyond the download.

RoofCalc ships an update every 2 months, passcoder every 3 weeks. The most recent releases landed on September 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | RoofCalc | passcoder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (9 ratings)](https://appshunter.io/ios/app/roofcalc-roofing-calculator/id1014237429/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 14 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Infoguide Pty Ltd](https://appshunter.io/developer/920670841) | [Christian Oelschlegel](https://appshunter.io/developer/1238850764) |

## What reviewers say

### RoofCalc

[App page](https://appshunter.io/ios/app/roofcalc-roofing-calculator/id1014237429)

This app assists roofing and framing carpenters with complex calculations for various roof types and stud walls. It offers metric and imperial unit conversion, a standard calculator, and the ability to share results via email or message. Optimized for iPhones and iPads, it's designed for ease of use by construction professionals.

**Highlights:** Hipped, gabled, and single-pitch roof calculations, Stud wall calculations and estimating, Metric and imperial unit conversion, Standard calculator and quick converter, Print, email, or message results, Default value settings

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $12.99 | per year |


### passcoder

[App page](https://appshunter.io/ios/app/passcoder/id1238850765)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RoofCalc free?

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

### Is passcoder free?

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

### Do RoofCalc or passcoder have ads?

Neither RoofCalc nor passcoder shows ads.

### Which is updated more often, RoofCalc or passcoder?

RoofCalc ships an update every 2 months, and passcoder every 3 weeks. Most recently, RoofCalc was updated on September 11, 2026 and passcoder on September 9, 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.*