# Calc vs GlobalCast

The clearest difference is in-app purchases: Calc at none against GlobalCast's 1. Calc also leads on ads (none vs shown) and review sentiment (67% vs 50%). GlobalCast's advantage is update cadence (every 3 months vs every 21 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. GlobalCast sells 1 one-off in-app purchase. Calc asks for nothing beyond the download.

Calc ships an update every 21 months, GlobalCast every 3 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Calc | GlobalCast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (39 ratings)](https://appshunter.io/ios/app/globalcast/id662106651/reviews)** |
| Number of ratings | — | **39** |
| Positive reviews | **66.7% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 21 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 36 MB | 87 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [FTI (1997) Pty Ltd](https://appshunter.io/developer/462573989) | [Kelly Technology Inc.](https://appshunter.io/developer/393931941) |

## What reviewers say

### Calc

[App page](https://appshunter.io/ios/app/calc-fdi/id530077646)

This app assists Australian Bush Fire Control Officers and Brigade members in predicting fire behavior using the Australian Fire Danger Rating System. It calculates various fire metrics for different environments and works offline.

**Highlights:** Predicts fire behavior for Australian environments, Calculates Fire Danger Ratings, Estimates Rate of Spread, Estimates Flame Height, Uses Australian Fire Danger Rating System models, Works offline

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

**In-app purchases:** none


### GlobalCast

[App page](https://appshunter.io/ios/app/globalcast/id662106651)

Get current weather conditions and forecasts for any location worldwide. View hourly and daily predictions, plus near real-time satellite imagery. Save up to eight favorite towns for quick access.

**Highlights:** Worldwide weather forecasts, Hourly and daily predictions, Real-time satellite views, Animated wide-area satellite imagery, Save up to eight locations

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Calc free?

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

### Is GlobalCast free?

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

### Do Calc or GlobalCast have ads?

GlobalCast shows ads; Calc does not.

### Which is updated more often, Calc or GlobalCast?

Calc ships an update every 21 months, and GlobalCast every 3 months. Most recently, Calc was updated on November 1, 2026 and GlobalCast on November 6, 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.*