# DejaVocab vs HeyReader

The clearest difference is rating: HeyReader at 5.0 against DejaVocab's 4.6. HeyReader also leads on monetization model (free vs freemium) and review sentiment (100% vs 85%). DejaVocab's advantage is ratings volume (52 vs 3). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. DejaVocab sells 6 in-app purchases, starting at $5.99 per month and HeyReader sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

HeyReader holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: DejaVocab has 52 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 85% of DejaVocab's written reviews are positive against 100% of HeyReader's.

DejaVocab ships an update weekly, HeyReader every 3 days. The most recent releases landed on September 24, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | DejaVocab | HeyReader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (52 ratings)](https://appshunter.io/ios/app/dejavocab/id6753130604/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/heyreader-learn-languages/id6757210312/reviews)** |
| Number of ratings | **52** | 3 |
| Positive reviews | 85.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Freemium | **Free** |
| Size | 292 MB | 13 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [灏 龙](https://appshunter.io/developer/1842626848) | [Shandong Linhu Cultural Development Co., Ltd.](https://appshunter.io/developer/1845287380) |

## 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 |


### HeyReader

[App page](https://appshunter.io/ios/app/heyreader-learn-languages/id6757210312)

Learn languages by reading real-world content. Subscribe to RSS feeds or import your own eBooks to practice vocabulary, understand complex sentences, and translate as you read. Enjoy a distraction-free, customizable reading experience.

**Highlights:** RSS feed subscriptions, Import PDF & EPUB books, Vocabulary highlighting & saving, Smart sentence splitting, Sentence & paragraph translation, Adjustable fonts & night mode

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HeyReader Pro | $4.99 | per month |
| HeyReader Pro Max | $9.99 | per month |


## Frequently asked questions

### Is DejaVocab free?

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

### Is HeyReader free?

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

### Which has better reviews, DejaVocab or HeyReader?

HeyReader is rated higher. DejaVocab averages 4.6 out of 5 from 52 ratings, while HeyReader averages 5.0 from 3 ratings.

### Do DejaVocab or HeyReader have ads?

Neither DejaVocab nor HeyReader shows ads.

### Which is updated more often, DejaVocab or HeyReader?

DejaVocab ships an update weekly, and HeyReader every 3 days. Most recently, DejaVocab was updated on September 24, 2026 and HeyReader on September 14, 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.*