# Significant Figures vs BFA Wind Explorer

The clearest difference is in-app purchases: Significant Figures at none against BFA Wind Explorer's 2. Significant Figures also leads on iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. BFA Wind Explorer sells 2 in-app purchases, starting at $2.99 per month. Significant Figures asks for nothing beyond the download.

## The numbers

| Metric | Significant Figures | BFA Wind Explorer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 months |
| Size | 40 MB | 50 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [STAGE CODING, Travnik](https://appshunter.io/developer/1637068135) | [Balloon Federation of America, Inc](https://appshunter.io/developer/1788276143) |

## What reviewers say

### Significant Figures

[App page](https://appshunter.io/ios/app/significant-figures-calcon/id1620143512)

**Features:** macOS Compatibility

**In-app purchases:** none


### BFA Wind Explorer

[App page](https://appshunter.io/ios/app/bfa-wind-explorer/id6740073716)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Membership | $2.99 | per month |
| Yearly Pro Membership | $24.99 | per year |


## Frequently asked questions

### Is Significant Figures free?

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

### Is BFA Wind Explorer free?

BFA Wind Explorer is free to download, with in-app purchases available.

### Do Significant Figures or BFA Wind Explorer have ads?

Neither Significant Figures nor BFA Wind Explorer 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.*