# Raynor Engineering Assistant

> Offline garage door installation calculation tool for professionals. (iPhone/iPad app by RAYNOR MFG. CO..)

- Source: https://appshunter.io/ios/app/raynor-engineering-assistant/id1097523513 (this page in markdown: same URL + `.md`)
- Developer: [RAYNOR MFG. CO.](https://appshunter.io/developer/979381474)
- Category: Productivity
- Price: Free
- Rating: 4.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 7.0 · 65 MB
- Released: 2016-04-04
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/raynor-engineering-assistant/id1097523513/reviews.md

## What is Raynor Engineering Assistant?

Designed for garage door installation professionals, the Raynor Garage Door Engineering Assistant makes complex calculations simple, even at the job site when not connected to the internet. Based on Raynor’s popular desktop application, the iPad version includes calculators for common installation planning and setup requirements:

• Torsion spring selection & setup
• Extension spring selection & setup
• Extension spring load
• Spring conversions
• Installer turns and drum information
• Drum comparisons
• Operator door speed

The app is preloaded with data for different drum models and springs made by Raynor as well as other manufacturers. By entering known information such as door width, height, weight, track length and other factors, you can quickly design a spring, calculate replacement springs, calculate installer turns, design an extension spring or determine spring loads for existing extension springs, plus other common tasks.

## Key features

- Torsion spring selection & setup
- Extension spring selection & setup
- Spring conversions
- Installer turns and drum information
- Operator door speed calculations
- Offline functionality


## Frequently asked questions about Raynor Engineering Assistant

### What is Raynor Engineering Assistant used for?

Raynor Engineering Assistant is designed to simplify complex calculations for garage door installation professionals. It helps with tasks like spring selection, setup, conversions, and operator speed calculations, making job site planning more efficient.

### Can I use Raynor Engineering Assistant offline?

Yes, the app is designed to function even when not connected to the internet, making it ideal for use at job sites where connectivity may be limited.

### What types of calculations does Raynor Engineering Assistant offer?

It offers calculators for torsion spring selection and setup, extension spring selection and setup, extension spring load, spring conversions, installer turns, drum information, drum comparisons, and operator door speed.

### Is Raynor Engineering Assistant available on Android?

Based on the provided data, Raynor Engineering Assistant is available for iPhone, iPad, and iPod devices. Information regarding Android availability is not specified.

### How often is Raynor Engineering Assistant updated?

The app was last updated on January 2, 2019, with version 1.1. The release date was April 4, 2016. This indicates infrequent updates.

### What is the user rating for Raynor Engineering Assistant?

Raynor Engineering Assistant has a rating of 4.0 stars based on 2 ratings. This suggests a generally positive reception from its limited user base.

### Does Raynor Engineering Assistant have ads?

No, Raynor Engineering Assistant does not contain advertisements. The app is free to download and use without any ad interruptions.

### What is the age rating for Raynor Engineering Assistant?

Raynor Engineering Assistant has an age rating of 4+. This means it is suitable for users aged 4 and above, indicating no mature content.

## Version history (last 2 releases)

### 1.1 — 2019-01-02

Bug Fixes.

### 1.0 — 2016-04-04

This update is signed with Apple’s latest signing certificate. No new features are included.

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## More apps by RAYNOR MFG. CO.

- [Raynor Architect Design Guide](https://appshunter.io/ios/app/raynor-architect-design-guide/id979382015)

All apps by RAYNOR MFG. CO.: https://appshunter.io/developer/979381474

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*