# Pressure Calc vs BIGGA

The clearest difference is ads: Pressure Calc at none against BIGGA's shown. Pressure Calc also leads on iOS requirement (11.0 vs 16.4). BIGGA's advantage is update cadence (every 3 months vs every 80 months). On price, 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.

Pressure Calc ships an update every 80 months, BIGGA every 3 months. Both last shipped on October 20, 2026.

## The numbers

| Metric | Pressure Calc | BIGGA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 80 months | **Every 3 months** |
| Size | 11 MB | 50 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Groundtruth Limited](https://appshunter.io/developer/894469722) | [BRITISH AND INTERNATIONAL GOLF GREENKEEPERS ASSOCIATION LIMITED](https://appshunter.io/developer/1434818704) |

## What reviewers say

### Pressure Calc

[App page](https://appshunter.io/ios/app/pressure-calc/id1109923919)

**Features:** macOS Compatibility

**In-app purchases:** none


### BIGGA

[App page](https://appshunter.io/ios/app/bigga/id1484115037)

**In-app purchases:** none


## Frequently asked questions

### Is Pressure Calc free?

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

### Is BIGGA free?

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

### Do Pressure Calc or BIGGA have ads?

BIGGA shows ads; Pressure Calc does not.

### Which is updated more often, Pressure Calc or BIGGA?

Pressure Calc ships an update every 80 months, and BIGGA every 3 months. Most recently, Pressure Calc was updated on October 20, 2026 and BIGGA on October 20, 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.*