# DeepEng HD vs 词骨英语850

The clearest difference is in-app purchases: 词骨英语850 at none against DeepEng HD's 1. DeepEng HD's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. DeepEng HD sells 1 one-off in-app purchase. 词骨英语850 asks for nothing beyond the download.

DeepEng HD ships an update weekly, 词骨英语850 fortnightly. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | DeepEng HD | 词骨英语850 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | — | Free |
| Size | 170 MB | 23 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [成都麦田外科技有限公司](https://appshunter.io/developer/1800915589) | [Bo Li](https://appshunter.io/developer/1894150079) |

## What reviewers say

### DeepEng HD

[App page](https://appshunter.io/ios/app/deepeng-hd/id6756874005)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 365天年卡 | $449.99 | one-time |


### 词骨英语850

[App page](https://appshunter.io/ios/app/850/id6773175114)

A lightweight tool for mastering the 850 core words of Ogden Basic English. It helps you identify known words, focus on learning new ones, and provides comprehensive vocabulary support including definitions, examples, and pronunciation.

**Highlights:** Self-testing to remove known words, View learned, removed, and all vocabulary, Browse 850 core words by Ogden categories, Includes definitions, example sentences, and notes, US and UK pronunciation for words, UK for sentences, Flashcard mode with audio playback, Progress tracking for learned and removed words

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

**In-app purchases:** none


## Frequently asked questions

### Is DeepEng HD free?

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

### Is 词骨英语850 free?

词骨英语850 is free to download, with no in-app purchases.

### Do DeepEng HD or 词骨英语850 have ads?

Neither DeepEng HD nor 词骨英语850 shows ads.

### Which is updated more often, DeepEng HD or 词骨英语850?

DeepEng HD ships an update weekly, and 词骨英语850 fortnightly. Most recently, DeepEng HD was updated on October 9, 2026 and 词骨英语850 on October 6, 2026.

---

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