# BFM Calculator vs Transitions Layouts

The clearest difference is in-app purchases: BFM Calculator at none against Transitions Layouts's 1. BFM Calculator also leads on update cadence (every 3 months vs every 9 months) and iOS requirement (11.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Transitions Layouts sells 1 one-off in-app purchase. BFM Calculator asks for nothing beyond the download.

BFM Calculator ships an update every 3 months, Transitions Layouts every 9 months. The most recent releases landed on October 26, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | BFM Calculator | Transitions Layouts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/transitions-layouts/id6757512792/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | — | Free with in-app purchases |
| Size | 94 MB | 47 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BFM® Global Ltd.](https://appshunter.io/developer/1371382736) | [Sachinbhai Surani](https://appshunter.io/developer/1838685550) |

## What reviewers say

### BFM Calculator

[App page](https://appshunter.io/ios/app/bfm-calculator/id1371382737)

**Features:** macOS Compatibility

**In-app purchases:** none


### Transitions Layouts

[App page](https://appshunter.io/ios/app/transitions-layouts/id6757512792)

This utility app generates precise layouts for various transition shapes used in fabrication and HVAC. It simplifies complex calculations for square-to-round, rectangular-to-round, and pyramid designs, reducing manual drafting and improving accuracy.

**Highlights:** Square to Round/Rectangular Layout, Round to Square/Rectangular Layout, Pyramid and Truncated Pyramid Layout, Multiple Joint Configurations, Flexible Line Divisions, Accurate Input Parameters

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $9.99 | one-time |


## Frequently asked questions

### Is BFM Calculator free?

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

### Is Transitions Layouts free?

Transitions Layouts is free to download, with in-app purchases available.

### Do BFM Calculator or Transitions Layouts have ads?

Neither BFM Calculator nor Transitions Layouts shows ads.

### Which is updated more often, BFM Calculator or Transitions Layouts?

BFM Calculator ships an update every 3 months, and Transitions Layouts every 9 months. Most recently, BFM Calculator was updated on October 26, 2026 and Transitions Layouts on October 31, 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.*