# 词骨英语850 vs Plain850：核心英文 850詞

The clearest difference is device support: Plain850：核心英文 850詞 at 3 against 词骨英语850's 1. Plain850：核心英文 850詞 also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

词骨英语850 ships an update fortnightly, Plain850：核心英文 850詞 every 2 weeks. The most recent releases landed on September 18, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 词骨英语850 | Plain850：核心英文 850詞 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 23 MB | 43 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bo Li](https://appshunter.io/developer/1894150079) | [Lok Wai](https://appshunter.io/developer/1895320924) |

## What reviewers say

### 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


### Plain850：核心英文 850詞

[App page](https://appshunter.io/ios/app/plain850-850/id6776902920)

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

**In-app purchases:** none


## Frequently asked questions

### Is 词骨英语850 free?

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

### Is Plain850：核心英文 850詞 free?

Plain850：核心英文 850詞 is free to download, with no in-app purchases.

### Do 词骨英语850 or Plain850：核心英文 850詞 have ads?

Neither 词骨英语850 nor Plain850：核心英文 850詞 shows ads.

### Which is updated more often, 词骨英语850 or Plain850：核心英文 850詞?

词骨英语850 ships an update fortnightly, and Plain850：核心英文 850詞 every 2 weeks. Most recently, 词骨英语850 was updated on September 18, 2026 and Plain850：核心英文 850詞 on September 9, 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.*