# 檸檬樹 vs SLPExam Pro

The clearest difference is in-app purchases: 檸檬樹 at none against SLPExam Pro's 2. 檸檬樹 also leads on iOS requirement (12.0 vs 17.0). SLPExam Pro's advantage is update cadence (every 6 months vs every 18 months). On price, ads and device support there is nothing between them.

Both are free to download. SLPExam Pro sells 2 in-app purchases, starting at $4.99 per month. 檸檬樹 asks for nothing beyond the download.

檸檬樹 ships an update every 18 months, SLPExam Pro every 6 months. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 檸檬樹 | SLPExam Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/id1021464041/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 72 MB | 7 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Darcherng Duh](https://appshunter.io/developer/394837303) | [Ming-Yu Hsieh](https://appshunter.io/developer/1877335792) |

## What reviewers say

### 檸檬樹

[App page](https://appshunter.io/ios/app/id1021464041)

This app guides beginners in learning Japanese with structured lessons, vocabulary, grammar explanations, and authentic audio. It offers customizable reading and listening exercises, vocabulary drills, and search functionality to enhance the learning experience.

**Highlights:** Structured beginner Japanese lessons, Vocabulary and grammar explanations, Authentic Japanese audio recordings, Customizable reading modes, Adjustable audio speed, Vocabulary drills and quizzes, Search and bookmark functionality

**In-app purchases:** none


### SLPExam Pro

[App page](https://appshunter.io/ios/app/slpexam-pro/id6762542850)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月訂閱 | $4.99 | per month |
| 季訂閱 | $12.99 | per 3 months |


## Frequently asked questions

### Is 檸檬樹 free?

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

### Is SLPExam Pro free?

SLPExam Pro is free to download, with in-app purchases available.

### Do 檸檬樹 or SLPExam Pro have ads?

Neither 檸檬樹 nor SLPExam Pro shows ads.

### Which is updated more often, 檸檬樹 or SLPExam Pro?

檸檬樹 ships an update every 18 months, and SLPExam Pro every 6 months. Most recently, 檸檬樹 was updated on November 1, 2026 and SLPExam Pro on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*