# Didactic climate models vs GMAT Exam Preparation

The clearest difference is in-app purchases: Didactic climate models at none against GMAT Exam Preparation's 2. Didactic climate models also leads on ads (none vs shown) and update cadence (every 6 weeks vs every 6 months). On price and iOS requirement there is nothing between them.

Both are free to download. GMAT Exam Preparation sells 2 in-app purchases, starting at $3.99 per 7 days. Didactic climate models asks for nothing beyond the download.

Didactic climate models ships an update every 6 weeks, GMAT Exam Preparation every 6 months. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Didactic climate models | GMAT Exam Preparation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 6 months |
| Size | 9 MB | 48 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Université de Genève](https://appshunter.io/developer/532494133) | [Zakaria Ferzazi](https://appshunter.io/developer/1801741449) |

## What reviewers say

### Didactic climate models

[App page](https://appshunter.io/ios/app/didactic-climate-models/id6469305388)

**In-app purchases:** none


### GMAT Exam Preparation

[App page](https://appshunter.io/ios/app/gmat-exam-preparation/id6748681383)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $3.99 | per 7 days |
| Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is Didactic climate models free?

Didactic climate models is free to download, with no in-app purchases.

### Is GMAT Exam Preparation free?

GMAT Exam Preparation is free to download, with in-app purchases available.

### Do Didactic climate models or GMAT Exam Preparation have ads?

GMAT Exam Preparation shows ads; Didactic climate models does not.

### Which is updated more often, Didactic climate models or GMAT Exam Preparation?

Didactic climate models ships an update every 6 weeks, and GMAT Exam Preparation every 6 months. Most recently, Didactic climate models was updated on October 16, 2026 and GMAT Exam Preparation on October 11, 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.*