# 五十音圖Pro vs BTT Lah!

The clearest difference is price: BTT Lah! at Free against 五十音圖Pro's $1.99. BTT Lah! also leads on update cadence (fortnightly vs every 2 months). 五十音圖Pro's advantage is in-app purchases (none vs 4) and iOS requirement (10.0 vs 15.0). On ads and device support there is nothing between them.

BTT Lah! is free to download; 五十音圖Pro costs $1.99 up front. BTT Lah! sells 4 one-off in-app purchases. 五十音圖Pro asks for nothing beyond the download.

五十音圖Pro ships an update every 2 months, BTT Lah! fortnightly. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | 五十音圖Pro | BTT Lah! |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 51 MB | 17 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [文涛 隋](https://appshunter.io/developer/1212355458) | [Appsaur.com Pte Ltd](https://appshunter.io/developer/1471583826) |

## What reviewers say

### 五十音圖Pro

[App page](https://appshunter.io/ios/app/pro/id1372554304)

**Features:** Vision Pro support

**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 五十音圖Pro free?

五十音圖Pro costs $1.99, with no in-app purchases.

### Is BTT Lah! free?

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

### Do 五十音圖Pro or BTT Lah! have ads?

Neither 五十音圖Pro nor BTT Lah! shows ads.

### Which is updated more often, 五十音圖Pro or BTT Lah!?

五十音圖Pro ships an update every 2 months, and BTT Lah! fortnightly. Most recently, 五十音圖Pro was updated on October 1, 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.*