# MochiVocab vs Cây Study

The clearest difference is review sentiment: Cây Study at 96% against MochiVocab's 55%. Cây Study also leads on rating (5.0 vs 4.8). MochiVocab's advantage is ratings volume (732 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. MochiVocab sells 5 one-off in-app purchases and Cây Study sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Cây Study holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: MochiVocab has 732 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 55% of MochiVocab's written reviews are positive against 96% of Cây Study's.

MochiVocab ships an update every 8 days, Cây Study fortnightly. Both last shipped on November 3, 2026.

## The numbers

| Metric | MochiVocab | Cây Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (732 ratings)](https://appshunter.io/ios/app/mochivocab-learn-english/id1484058499/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cay-study/id6458733106/reviews)** |
| Number of ratings | **732** | 1 |
| Positive reviews | 54.7% of reviews | **96.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 88 MB | 37 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Anh Quach](https://appshunter.io/developer/903049289) | [Edmicro](https://appshunter.io/developer/1506873009) |

## What reviewers say

### MochiVocab

[App page](https://appshunter.io/ios/app/mochivocab-learn-english/id1484058499)

This app offers a joyful and engaging way to learn English vocabulary, aiming to help users memorize up to 1000 words in a single month. It utilizes special algorithms to schedule reviews at optimal times and features a bright, friendly design with cute characters to enhance the learning process.

**Highlights:** Joyful learning experience, Golden Time review algorithm, Bright and friendly design, Hundreds of lessons, Mochi dictionary, Multiple courses

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6 Tháng | $23.99 | one-time |
| 12 Tháng | $29.99 | one-time |
| Unlock all features for 1 year | $41.99 | one-time |
| 3-year package | $69.99 | one-time |
| Unlock all features for 3 year | $83.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick processing
- 💡 Helpful for exam preparation

**What reviewers complain about**

- 🐛 Frequent crashes
- ⏱️ Slow performance
- 🔌 Requires internet connection

**Reported bugs**

- Inability to save vocabulary
- Unreliable audio playback
- Inconsistent user interface

**Requested features**

- Offline mode
- Customizable learning schedules
- Support for iPad devices


### Cây Study

[App page](https://appshunter.io/ios/app/cay-study/id6458733106)

This language learning app focuses on pronunciation, offering AI-powered feedback on tone and intonation. It includes over 1000 vocabulary and grammar exercises, plus practice tests with explanations to improve all four language skills.

**Highlights:** AI pronunciation analysis and feedback, 1000+ vocabulary and grammar exercises, Comprehensive skill development (4 skills), Realistic practice tests with explanations, Personalized course packages, AI scoring and answer analysis

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Khóa từ vựng TOEIC 450-700 | $2.99 | one-time |
| Từ vựng TOEIC 0-450 | $2.99 | one-time |
| Khóa từ vựng TOEIC 700+ | $2.99 | one-time |
| Phát âm tiếng anh | $2.99 | one-time |
| 3000 từ vựng tiếng anh | $4.99 | one-time |
| Từ vựng IELTS Ban0-4.5 | $6.99 | one-time |
| Bộ 20 đề IELTS thi online | $6.99 | one-time |
| Từ vựng IELTS Band 4.5-5.5 | $7.99 | one-time |
| Từ vựng IELTS Band 6.5+ | $9.99 | one-time |
| Từ vựng IELTS Band 5.5-6.5 | $9.99 | one-time |


## Frequently asked questions

### Is MochiVocab free?

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

### Is Cây Study free?

Cây Study is free to download, with in-app purchases available.

### Which has better reviews, MochiVocab or Cây Study?

Cây Study is rated higher. MochiVocab averages 4.8 out of 5 from 732 ratings, while Cây Study averages 5.0 from 1 ratings.

### Do MochiVocab or Cây Study have ads?

Neither MochiVocab nor Cây Study shows ads.

### Which is updated more often, MochiVocab or Cây Study?

MochiVocab ships an update every 8 days, and Cây Study fortnightly. Most recently, MochiVocab was updated on November 3, 2026 and Cây Study on November 3, 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.*