# Bellows Design Software vs Hinge Door Angles

The clearest difference is in-app purchases: Hinge Door Angles at none against Bellows Design Software's 2. Bellows Design Software's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Bellows Design Software sells 2 in-app purchases, starting at $34.99 per month. Hinge Door Angles asks for nothing beyond the download.

## The numbers

| Metric | Bellows Design Software | Hinge Door Angles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bellows-design-software/id1635945221/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 0 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Linh Phan Nhat Khanh](https://appshunter.io/developer/1777727575) |

## What reviewers say

### Bellows Design Software

[App page](https://appshunter.io/ios/app/bellows-design-software/id1635945221)

This application assists in designing metallic bellows type expansion joints according to EJMA Standards. It allows users to input various design parameters and movement inputs to ensure safe and reliable usage. The software performs comprehensive calculations and checks against EJMA conditions for different bellows configurations and materials.

**Highlights:** Design metallic bellows expansion joints, Input internal diameter, convolution height, ply thickness, pitch, and number of plies, Set design pressure, temperature, and movements, Check design parameters against EJMA Standards, Calculations for single and dual bellows, Includes vibration and bellows forming methods, Calculations for tie rods, lugs plate, and hinges

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access for Bellows | $34.99 | per month |
| All Access for Bellows Design | $299.99 | per year |


### Hinge Door Angles

[App page](https://appshunter.io/ios/app/hinge-door-angles/id6771945822)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bellows Design Software free?

Bellows Design Software is free to download, with in-app purchases available.

### Is Hinge Door Angles free?

Hinge Door Angles is free to download, with no in-app purchases.

### Do Bellows Design Software or Hinge Door Angles have ads?

Neither Bellows Design Software nor Hinge Door Angles shows ads.

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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.*