# Supernova vs BTT Lah!

The clearest difference is in-app purchases: Supernova at none against BTT Lah!'s 4. Supernova also leads on iOS requirement (11.0 vs 15.0). BTT Lah!'s advantage is update cadence (fortnightly vs every 26 months). 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. Supernova asks for nothing beyond the download.

Supernova ships an update every 26 months, BTT Lah! fortnightly. The most recent releases landed on October 25, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Supernova | BTT Lah! |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 17 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [S. LATTES & C. EDITORI S.p.A.](https://appshunter.io/developer/1374140943) | [Appsaur.com Pte Ltd](https://appshunter.io/developer/1471583826) |

## What reviewers say

### Supernova

[App page](https://appshunter.io/ios/app/supernova/id1453678146)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Supernova free?

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

### Is BTT Lah! free?

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

### Do Supernova or BTT Lah! have ads?

Neither Supernova nor BTT Lah! shows ads.

### Which is updated more often, Supernova or BTT Lah!?

Supernova ships an update every 26 months, and BTT Lah! fortnightly. Most recently, Supernova was updated on October 25, 2026 and BTT Lah! on October 2, 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.*