# Bending Sheet Metal vs Bellows Design Software

The clearest difference is rating: Bellows Design Software at 5.0 against Bending Sheet Metal's 2.8. Bellows Design Software also leads on update cadence (monthly vs every 35 months). Bending Sheet Metal's advantage is in-app purchases (none vs 2) and ratings volume (4 vs 1). On price, ads and device support there is nothing between them.

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

Bellows Design Software holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Bending Sheet Metal ships an update every 35 months, Bellows Design Software monthly. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Bending Sheet Metal | Bellows Design Software |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/bending-sheet-metal/id1440030057/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bellows-design-software/id1635945221/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 35 months | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 51 MB | 26 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Bhavinkumar Satashiya](https://appshunter.io/developer/1361485921) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## What reviewers say

### Bending Sheet Metal

[App page](https://appshunter.io/ios/app/bending-sheet-metal/id1440030057)

This app calculates the total flat length of sheet metal bends based on a specified K-factor. It also provides approximate K-factor values for different bending methods and material stiffness if the exact value is unknown.

**Highlights:** Total flat length calculation, K-factor specification, Approximate K-factor suggestions, Material stiffness consideration, Bending method analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Bending Sheet Metal free?

Bending Sheet Metal is free to download, with no in-app purchases.

### Is Bellows Design Software free?

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

### Which has better reviews, Bending Sheet Metal or Bellows Design Software?

Bellows Design Software is rated higher. Bending Sheet Metal averages 2.8 out of 5 from 4 ratings, while Bellows Design Software averages 5.0 from 1 ratings.

### Do Bending Sheet Metal or Bellows Design Software have ads?

Neither Bending Sheet Metal nor Bellows Design Software shows ads.

### Which is updated more often, Bending Sheet Metal or Bellows Design Software?

Bending Sheet Metal ships an update every 35 months, and Bellows Design Software monthly. Most recently, Bending Sheet Metal was updated on October 24, 2026 and Bellows Design Software on October 19, 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.*