# SIAWISE vs ForestSIM Mobile

The clearest difference is update cadence: ForestSIM Mobile at every 4 months against SIAWISE's every 9 months. 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.

SIAWISE ships an update every 9 months, ForestSIM Mobile every 4 months. The most recent releases landed on September 11, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | SIAWISE | ForestSIM Mobile |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Size | 27 MB | 72 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SIA - Sociedade de Inovacao Ambiental, Lda.](https://appshunter.io/developer/914043079) | [2BForest](https://appshunter.io/developer/1878728763) |

## What reviewers say

### SIAWISE

[App page](https://appshunter.io/ios/app/siawise/id914043076)

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

**In-app purchases:** none


### ForestSIM Mobile

[App page](https://appshunter.io/ios/app/forestsim-mobile/id6759458906)

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

**In-app purchases:** none


## Frequently asked questions

### Is SIAWISE free?

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

### Is ForestSIM Mobile free?

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

### Do SIAWISE or ForestSIM Mobile have ads?

Neither SIAWISE nor ForestSIM Mobile shows ads.

### Which is updated more often, SIAWISE or ForestSIM Mobile?

SIAWISE ships an update every 9 months, and ForestSIM Mobile every 4 months. Most recently, SIAWISE was updated on September 11, 2026 and ForestSIM Mobile on August 18, 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.*