# Bellows Design Software vs Divisors

The clearest difference is in-app purchases: Divisors at none against Bellows Design Software's 2. Divisors also leads on update cadence (weekly vs monthly). On price, ads, device support 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. Divisors asks for nothing beyond the download.

Bellows Design Software ships an update monthly, Divisors weekly. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Bellows Design Software | Divisors |
| --- | --- | --- |
| 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 | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 7 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [DORU SULAR](https://appshunter.io/developer/1675124003) |

## 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 |


### Divisors

[App page](https://appshunter.io/ios/app/divisors/id6446118285)

**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 Divisors free?

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

### Do Bellows Design Software or Divisors have ads?

Neither Bellows Design Software nor Divisors shows ads.

### Which is updated more often, Bellows Design Software or Divisors?

Bellows Design Software ships an update monthly, and Divisors weekly. Most recently, Bellows Design Software was updated on October 2, 2026 and Divisors on October 7, 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.*