# BTT vs SG Driving Theory

The clearest difference is in-app purchases: SG Driving Theory at none against BTT's 1. SG Driving Theory also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. BTT sells 1 one-off in-app purchase. SG Driving Theory asks for nothing beyond the download.

## The numbers

| Metric | BTT | SG Driving Theory |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | — |
| Size | 69 MB | 31 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [VINZCORP SOLUTIONS PTE. LTD.](https://appshunter.io/developer/1480938118) | [Abel Wang](https://appshunter.io/developer/1230366074) |

## What reviewers say

### BTT

[App page](https://appshunter.io/ios/app/btt-basic-theory-test-sg/id6758176753)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | one-time |


### SG Driving Theory

[App page](https://appshunter.io/ios/app/sg-driving-theory/id6815922359)

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

**In-app purchases:** none


## Frequently asked questions

### Is BTT free?

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

### Is SG Driving Theory free?

SG Driving Theory is free to download, with no in-app purchases.

### Do BTT or SG Driving Theory have ads?

BTT shows ads; SG Driving Theory does not.

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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.*