# BTT Lah! vs Singapore Driver Theory

The clearest difference is ads: BTT Lah! at none against Singapore Driver Theory's shown. BTT Lah! also leads on update cadence (fortnightly vs every 6 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. BTT Lah! sells 4 one-off in-app purchases and Singapore Driver Theory sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

BTT Lah! ships an update fortnightly, Singapore Driver Theory every 6 months. The most recent releases landed on October 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BTT Lah! | Singapore Driver Theory |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 18 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Appsaur.com Pte Ltd](https://appshunter.io/developer/1471583826) | [国栋 王](https://appshunter.io/developer/1793507016) |

## What reviewers say

### BTT Lah!

[App page](https://appshunter.io/ios/app/btt-lah-basic-theory-test/id1493701248)

This app helps you prepare for your driving theory test with features designed to reduce eye strain and optimize learning. It uses smart algorithms to focus on your weak areas and reinforces learning through automated repetition and progress tracking.

**Highlights:** Reduced eye strain design, Adaptive question inflow, Automated short-term memory rehearsal, Detailed result analysis, Progress monitoring charts, Timed e-trial tests, Question and answer shuffling

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 600 BTT Questions All language | $12.99 | one-time |
| 600 BTT Questions All language | $24.99 | one-time |
| ProEnglish600Question | $28.99 | one-time |
| ProALLLanguages600Questions | $54.99 | one-time |


### Singapore Driver Theory

[App page](https://appshunter.io/ios/app/singapore-driver-theory/id6754340473)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Plan | $4.99 | one-time |
| Professional Plan | $14.99 | one-time |


## Frequently asked questions

### Is BTT Lah! free?

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

### Is Singapore Driver Theory free?

Singapore Driver Theory is free to download, with in-app purchases available.

### Do BTT Lah! or Singapore Driver Theory have ads?

Singapore Driver Theory shows ads; BTT Lah! does not.

### Which is updated more often, BTT Lah! or Singapore Driver Theory?

BTT Lah! ships an update fortnightly, and Singapore Driver Theory every 6 months. Most recently, BTT Lah! was updated on October 2, 2026 and Singapore Driver Theory on October 25, 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.*