# Roof Guide vs StudPlan

The clearest difference is iOS requirement: StudPlan at 17.0 against Roof Guide's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Roof Guide sells 4 in-app purchases, starting at $1.99 per month and StudPlan sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Roof Guide ships an update monthly, StudPlan every 2 weeks. Both last shipped on September 17, 2026.

## The numbers

| Metric | Roof Guide | StudPlan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (17 ratings)](https://appshunter.io/ios/app/roof-guide-carpentry-calc/id920670842/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 63.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 3 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Infoguide Pty Ltd](https://appshunter.io/developer/920670841) | [ZHENGQIAO JIANG](https://appshunter.io/developer/1892168889) |

## What reviewers say

### Roof Guide

[App page](https://appshunter.io/ios/app/roof-guide-carpentry-calc/id920670842)

This app provides specialized calculators for roofing, framing, decking, stairs, and concrete projects. It helps construction professionals estimate quantities, costs, and set out materials accurately using US or metric measurements.

**Highlights:** Roof framing calculations, Decking and flooring estimator, Stud wall setout and costing, Stair framing calculations, Concrete volume and cost estimator, Metric and imperial unit conversion

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| 6 Months | $7.99 | per 6 months |
| Annual | $12.99 | per year |
| Lifetime License | $29.99 | one-time |


### StudPlan

[App page](https://appshunter.io/ios/app/studplan-wall-framing-layout/id6769339554)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $4.99 | per month |
| Yearly | $29.99 | per year |
| Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Roof Guide free?

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

### Is StudPlan free?

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

### Do Roof Guide or StudPlan have ads?

Neither Roof Guide nor StudPlan shows ads.

### Which is updated more often, Roof Guide or StudPlan?

Roof Guide ships an update monthly, and StudPlan every 2 weeks. Most recently, Roof Guide was updated on September 17, 2026 and StudPlan on September 17, 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.*