# BTT 123 SG (Basic Theory) vs Star Learners Parent App

The clearest difference is price: Star Learners Parent App at Free against BTT 123 SG (Basic Theory)'s $0.99. Star Learners Parent App also leads on update cadence (every 2 months vs every 8 months) and iOS requirement (13.1 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Star Learners Parent App is free to download; BTT 123 SG (Basic Theory) costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BTT 123 SG (Basic Theory) ships an update every 8 months, Star Learners Parent App every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | BTT 123 SG (Basic Theory) | Star Learners Parent App |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/btt-123-sg-basic-theory/id1140305786/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 41 MB | 30 MB |
| Requires iOS | 17.6 | **13.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [APPTREME STUDIO](https://appshunter.io/developer/392439070) | [CommonTown Pte Ltd](https://appshunter.io/developer/425121361) |

## What reviewers say

### BTT 123 SG (Basic Theory)

[App page](https://appshunter.io/ios/app/btt-123-sg-basic-theory/id1140305786)

Prepare for your Singapore driving Basic Theory Test with flashcards, practice questions, and a simulator. Track your progress and get reminders for your test date. Learn at your own pace without expensive driving center programs.

**Highlights:** Flashcards for road signs, Hundreds of practice questions, Test simulator, Test date reminders, Saved test history, Offline functionality

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

**In-app purchases:** none


### Star Learners Parent App

[App page](https://appshunter.io/ios/app/star-learners-parent-app/id1444569051)

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

**In-app purchases:** none


## Frequently asked questions

### Is BTT 123 SG (Basic Theory) free?

BTT 123 SG (Basic Theory) costs $0.99, with no in-app purchases.

### Is Star Learners Parent App free?

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

### Do BTT 123 SG (Basic Theory) or Star Learners Parent App have ads?

Neither BTT 123 SG (Basic Theory) nor Star Learners Parent App shows ads.

### Which is updated more often, BTT 123 SG (Basic Theory) or Star Learners Parent App?

BTT 123 SG (Basic Theory) ships an update every 8 months, and Star Learners Parent App every 2 months. Most recently, BTT 123 SG (Basic Theory) was updated on October 24, 2026 and Star Learners Parent App on October 24, 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.*