# Rafter Help vs RoofCalc

The clearest difference is price: RoofCalc at Free against Rafter Help's $1.99. RoofCalc also leads on update cadence (monthly vs every 5 months). Rafter Help's advantage is rating (4.5 vs 3.8) and in-app purchases (none vs 2). On ads and device support there is nothing between them.

RoofCalc is free to download; Rafter Help costs $1.99 up front. RoofCalc sells 2 in-app purchases, starting at $1.99 per month. Rafter Help asks for nothing beyond the download.

Rafter Help holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: Rafter Help has 214 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 40% of Rafter Help's written reviews are positive against 20% of RoofCalc's.

Rafter Help ships an update every 5 months, RoofCalc monthly. The most recent releases landed on October 22, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Rafter Help | RoofCalc |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.5 (214 ratings)](https://appshunter.io/ios/app/rafter-help/id1006188060/reviews)** | [3.8 (12 ratings)](https://appshunter.io/ios/app/roofcalc-roofing-calculator/id1014237429/reviews) |
| Number of ratings | **214** | 12 |
| Positive reviews | **40.0% of reviews** | 20.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 21 MB |
| Requires iOS | **10.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Armchair Engineering](https://appshunter.io/developer/398901339) | [Infoguide Pty Ltd](https://appshunter.io/developer/920670841) |

## What reviewers say

### Rafter Help

[App page](https://appshunter.io/ios/app/rafter-help/id1006188060)

This app simplifies roof construction by calculating rafter lengths and related measurements. It supports various input formats for pitch and length, offering both quick calculations for gable roofs and advanced control for more complex needs.

**Highlights:** Calculate rafter length and associated values, Determine roof pitch, rafter lengths, and ridge height, Supports gable roofs, Advanced calculation options, Multiple input formats for pitch (radians, degrees, DMS, rise/run), Flexible length units (mm, cm, inches, feet), Customizable decimal places

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to understand
- 👍 Accurate measurements
- 👍 Gives rafter length with deduction
- 👍 Useful for setting out measurements
- 👍 First class, use it all the time

**What reviewers complain about**

- 👎 Cannot add 1/4 inch
- 👎 Inaccurate and unconvincing
- 👎 Really limited functionality
- 👎 Doesn’t give cut angles, only lengths
- 👎 Doesn’t give necessary measurements for rafters

**Reported bugs**

- Cannot add 1/4 inch
- Missing decimal point on keypad
- Major error in basic gable drawing
- App won't open, says 'waiting'

**Requested features**

- Add 1/4 inch input
- Provide cut angles
- Include decimal point on keypad
- Support hip rafters
- Correct drawing error for basic gable


### 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

**Features:** Vision Pro support

**In-app purchases (2)**

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


## Frequently asked questions

### Is Rafter Help free?

Rafter Help costs $1.99, with no in-app purchases.

### Is RoofCalc free?

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

### Which has better reviews, Rafter Help or RoofCalc?

Rafter Help is rated higher. Rafter Help averages 4.5 out of 5 from 214 ratings, while RoofCalc averages 3.8 from 12 ratings.

### Do Rafter Help or RoofCalc have ads?

Neither Rafter Help nor RoofCalc shows ads.

### Which is updated more often, Rafter Help or RoofCalc?

Rafter Help ships an update every 5 months, and RoofCalc monthly. Most recently, Rafter Help was updated on October 22, 2026 and RoofCalc on October 16, 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.*