# BFM Calculator vs SWI Fold

The clearest difference is update cadence: SWI Fold at every 5 days against BFM Calculator's every 3 months. BFM Calculator's advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BFM Calculator ships an update every 3 months, SWI Fold every 5 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BFM Calculator | SWI Fold |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Size | 94 MB | 39 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BFM® Global Ltd.](https://appshunter.io/developer/1371382736) | [SWI Engineering](https://appshunter.io/developer/1028933381) |

## What reviewers say

### BFM Calculator

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

**Features:** macOS Compatibility

**In-app purchases:** none


### SWI Fold

[App page](https://appshunter.io/ios/app/swi-fold/id6744004402)

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

**In-app purchases:** none


## Frequently asked questions

### Is BFM Calculator free?

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

### Is SWI Fold free?

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

### Do BFM Calculator or SWI Fold have ads?

Neither BFM Calculator nor SWI Fold shows ads.

### Which is updated more often, BFM Calculator or SWI Fold?

BFM Calculator ships an update every 3 months, and SWI Fold every 5 days. Most recently, BFM Calculator was updated on October 26, 2026 and SWI Fold on October 25, 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.*