# 不忘词典 vs 优滔英语词力

The clearest difference is ads: 不忘词典 at none against 优滔英语词力's shown. 不忘词典 also leads on update cadence (every 3 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. 不忘词典 sells 1 one-off in-app purchase and 优滔英语词力 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

不忘词典 ships an update every 3 days, 优滔英语词力 every 2 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 不忘词典 | 优滔英语词力 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/id1453514210/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 137 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Joseph Works Limited](https://appshunter.io/developer/717622923) | [永新 章](https://appshunter.io/developer/1381296494) |

## What reviewers say

### 不忘词典

[App page](https://appshunter.io/ios/app/id1453514210)

This app helps you remember every word you look up using a spaced repetition system based on the forgetting curve. It offers root and suffix analysis, real pronunciation, and example sentences for effective vocabulary acquisition.

**Highlights:** Spaced repetition system, Root and suffix analysis, Word pronunciation, Example sentences, iCloud backup and sync, Notification reminders

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 记忆功能 | $1.99 | one-time |


### 优滔英语词力

[App page](https://appshunter.io/ios/app/list/id1590814626)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 英语词力.高中英语 VIP版 | $2.99 | one-time |


## Frequently asked questions

### Is 不忘词典 free?

不忘词典 is free to download, with in-app purchases available.

### Is 优滔英语词力 free?

优滔英语词力 is free to download, with in-app purchases available.

### Do 不忘词典 or 优滔英语词力 have ads?

优滔英语词力 shows ads; 不忘词典 does not.

### Which is updated more often, 不忘词典 or 优滔英语词力?

不忘词典 ships an update every 3 days, and 优滔英语词力 every 2 months. Most recently, 不忘词典 was updated on November 6, 2026 and 优滔英语词力 on November 7, 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.*