# Think Differently Academy vs GBF Keller

The clearest difference is in-app purchases: GBF Keller at none against Think Differently Academy's 1. GBF Keller also leads on iOS requirement (13.4 vs 15.2). On price, ads and device support there is nothing between them.

Both are free to download. Think Differently Academy sells 1 one-off in-app purchase. GBF Keller asks for nothing beyond the download.

## The numbers

| Metric | Think Differently Academy | GBF Keller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gbf-keller/id6738859408/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 109 MB | 47 MB |
| Requires iOS | 15.2 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Human Systems Consultants P.C.](https://appshunter.io/developer/1573203401) | [Grace Bible Fellowship (Fort Worth)](https://appshunter.io/developer/1782653038) |

## What reviewers say

### Think Differently Academy

[App page](https://appshunter.io/ios/app/think-differently-academy/id6478163231)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Think Differently | $229.00 | one-time |


### GBF Keller

[App page](https://appshunter.io/ios/app/gbf-keller/id6738859408)

**In-app purchases:** none


## Frequently asked questions

### Is Think Differently Academy free?

Think Differently Academy is free to download, with in-app purchases available.

### Is GBF Keller free?

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

### Do Think Differently Academy or GBF Keller have ads?

Neither Think Differently Academy nor GBF Keller shows ads.

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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.*