# 佛系背单词 vs COCA词频单词

The clearest difference is review sentiment: 佛系背单词 at 100% against COCA词频单词's 43%. 佛系背单词 also leads on price ($0.99 vs $2.99). COCA词频单词's advantage is in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 3 months). On ads and device support there is nothing between them.

佛系背单词 costs $0.99 and COCA词频单词 $2.99 up front. 佛系背单词 sells 1 one-off in-app purchase. COCA词频单词 asks for nothing beyond the download.

佛系背单词 ships an update every 3 months, COCA词频单词 every 6 weeks. The most recent releases landed on October 2, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 佛系背单词 | COCA词频单词 |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | **[4.8 (21 ratings)](https://appshunter.io/ios/app/id1378189069/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | **100.0% of reviews** | 42.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | — | Paid |
| Size | 70 MB | 105 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [贞平 阮](https://appshunter.io/developer/1369966007) | [坤 徐](https://appshunter.io/developer/1490871013) |

## What reviewers say

### 佛系背单词

[App page](https://appshunter.io/ios/app/id1378189069)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FOXIBEIDANCI VIP DONATION | $2.99 | one-time |


### COCA词频单词

[App page](https://appshunter.io/ios/app/coca/id1490871014)

Master English vocabulary with a frequency-based approach. This app provides detailed explanations, synonyms, and example sentences for thousands of the most common words, aiding efficient learning and retention.

**Highlights:** 17,631 COCA-ranked words, Detailed explanations, synonyms, and examples, Audio pronunciation, Grouped learning by 1000-word intervals, Offline dictionary access, Progress tracking and learned word filtering

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

**In-app purchases:** none


## Frequently asked questions

### Is 佛系背单词 free?

佛系背单词 costs $0.99, and also offers in-app purchases.

### Is COCA词频单词 free?

COCA词频单词 costs $2.99, with no in-app purchases.

### Do 佛系背单词 or COCA词频单词 have ads?

Neither 佛系背单词 nor COCA词频单词 shows ads.

### Which is updated more often, 佛系背单词 or COCA词频单词?

佛系背单词 ships an update every 3 months, and COCA词频单词 every 6 weeks. Most recently, 佛系背单词 was updated on October 2, 2026 and COCA词频单词 on October 20, 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.*