Calc vs GlobalCast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calc
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.
- 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
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CALC-FDI3 is designed to be used in Australia by Bush Fire Control Officers and members of Bush Fire Brigades. It makes use of the Australian Fire Danger Rating System models to predict fire behaviour for fires in the following environments: Grassland, Mallee Heath, Shrubland, Tasmanian Buttongrass, Spinifex and Spinifex Woodlands and Savanna Woodlands and Eucalypt Forests. Calculate Fire Danger Ratings, Fire Behaviour Index, Rate of Spread, Flame Height and more. Works offline. CALC-FDI3 uses models are those released in conjunction with the new nation-wide Fire Danger Rating system commencing September 1st 2022
GlobalCast
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.
- Worldwide weather forecasts
- Hourly and daily predictions
- Real-time satellite views
- Animated wide-area satellite imagery
- Save up to eight locations
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Find the local weather forecast for any town in the world. GlobalCast provides the current weather, the forecast at 3-hourly and daily intervals, and near real-time local and animated wide-area satellite views for each location. Up to eight towns can be stored for easy re-selection. Weather data is provided by OpenWeatherMap. Satellite images are courtesy of NOAA and NASA.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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. Both last shipped on November 1, 2026.
| Parameter | Calc | GlobalCast |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (39 ratings) — better |
| Positive reviews | 66.7% of reviews — better | 50.0% of reviews |
| Number of ratings | — | 39 — better |
| Update frequency | Every 21 months | Every 3 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 87 MB |
| Age rating | 4+ | 17+ |
| Developer | FTI (1997) Pty Ltd | Kelly Technology Inc. |
Customer experience
Calc
GlobalCast
In-app purchases
Calc
No in-app purchases
GlobalCast
- Remove Ads$2.99
