# BTT Lah! vs Smiling Star Parent

The clearest difference is in-app purchases: Smiling Star Parent at none against BTT Lah!'s 4. Smiling Star Parent also leads on iOS requirement (11.0 vs 15.0). BTT Lah!'s advantage is update cadence (fortnightly vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. BTT Lah! sells 4 one-off in-app purchases. Smiling Star Parent asks for nothing beyond the download.

BTT Lah! ships an update fortnightly, Smiling Star Parent every 6 weeks. The most recent releases landed on October 2, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | BTT Lah! | Smiling Star Parent |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 26 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Appsaur.com Pte Ltd](https://appshunter.io/developer/1471583826) | [Cyberland Consultancy Pte Ltd](https://appshunter.io/developer/599924964) |

## 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 |


### Smiling Star Parent

[App page](https://appshunter.io/ios/app/smiling-star-parent/id6612025130)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BTT Lah! free?

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

### Is Smiling Star Parent free?

Smiling Star Parent is free to download, with no in-app purchases.

### Do BTT Lah! or Smiling Star Parent have ads?

Neither BTT Lah! nor Smiling Star Parent shows ads.

### Which is updated more often, BTT Lah! or Smiling Star Parent?

BTT Lah! ships an update fortnightly, and Smiling Star Parent every 6 weeks. Most recently, BTT Lah! was updated on October 2, 2026 and Smiling Star Parent on October 19, 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.*