# RoofMaster vs Calculadora Panel Rey®

The clearest difference is update cadence: Calculadora Panel Rey® at every 4 days against RoofMaster's every 7 months. Calculadora Panel Rey® also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RoofMaster ships an update every 7 months, Calculadora Panel Rey® every 4 days. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | RoofMaster | Calculadora Panel Rey® |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 days** |
| Size | 50 MB | 105 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aldo Rodriguez](https://appshunter.io/developer/1309752883) | [Panel Rey S.A.](https://appshunter.io/developer/768352810) |

## What reviewers say

### RoofMaster

[App page](https://appshunter.io/ios/app/roofmaster/id1494523777)

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

**In-app purchases:** none


### Calculadora Panel Rey®

[App page](https://appshunter.io/ios/app/calculadora-panel-rey/id6447714427)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RoofMaster free?

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

### Is Calculadora Panel Rey® free?

Calculadora Panel Rey® is free to download, with no in-app purchases.

### Do RoofMaster or Calculadora Panel Rey® have ads?

Neither RoofMaster nor Calculadora Panel Rey® shows ads.

### Which is updated more often, RoofMaster or Calculadora Panel Rey®?

RoofMaster ships an update every 7 months, and Calculadora Panel Rey® every 4 days. Most recently, RoofMaster was updated on October 5, 2026 and Calculadora Panel Rey® on October 8, 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.*