# DejaVocab vs 非正式口语

The clearest difference is iOS requirement: 非正式口语 at 15.0 against DejaVocab's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. DejaVocab sells 6 in-app purchases, starting at $5.99 per month and 非正式口语 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | DejaVocab | 非正式口语 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (66 ratings)](https://appshunter.io/ios/app/dejavocab/id6753130604/reviews)** | — |
| Number of ratings | **66** | — |
| Positive reviews | 86.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Freemium | — |
| Size | 360 MB | 47 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [灏 龙](https://appshunter.io/developer/1842626848) | [嘉洋 杜](https://appshunter.io/developer/1892664123) |

## What reviewers say

### DejaVocab

[App page](https://appshunter.io/ios/app/dejavocab/id6753130604)

This app helps you learn languages by immersing you in real-world content like videos, podcasts, and books. It builds a personal language corpus by capturing and organizing language chunks from natural input, allowing you to review words within their original context. The system integrates spoken and written language for a continuous learning experience.

**Highlights:** Learn from videos, podcasts, and audiobooks, Build a personal language corpus, Review vocabulary in original context, Integrates spoken and written language, Supports EPUB, PDF, and text files

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DejaVocab 高级版 | $5.99 | per month |
| DejaVocab 高级版 | $7.99 | per month |
| DejaVocab 高级版年付 | $49.99 | per year |
| DejaVocab 专业版年付 | $69.99 | per year |
| DejaVocab 共建者 | $199.99 | one-time |
| DejaVocab 共建者 Plus | $299.99 | one-time |


### 非正式口语

[App page](https://appshunter.io/ios/app/id6762054563)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 非正式口语 Pro | $19.99 | one-time |


## Frequently asked questions

### Is DejaVocab free?

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

### Is 非正式口语 free?

非正式口语 is free to download, with in-app purchases available.

### Do DejaVocab or 非正式口语 have ads?

Neither DejaVocab nor 非正式口语 shows ads.

### Which is updated more often, DejaVocab or 非正式口语?

DejaVocab ships an update weekly, and 非正式口语 weekly. Most recently, DejaVocab was updated on November 8, 2026 and 非正式口语 on November 5, 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.*