# 易呗背单词 vs KeepOnFirst

The clearest difference is in-app purchases: 易呗背单词 at none against KeepOnFirst's 3. 易呗背单词 also leads on iOS requirement (9.0 vs 17.0). KeepOnFirst's advantage is device support. On price there is nothing between them.

Both are free to download. KeepOnFirst sells 3 in-app purchases, starting at $0.99 per month. 易呗背单词 asks for nothing beyond the download.

## The numbers

| Metric | 易呗背单词 | KeepOnFirst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/id627999439/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Weekly |
| Monetization | Free | — |
| Size | 154 MB | 18 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Enguru LLC](https://appshunter.io/developer/1049219570) | [yu te Lin](https://appshunter.io/developer/1857651876) |

## What reviewers say

### 易呗背单词

[App page](https://appshunter.io/ios/app/id627999439)

This app is designed for postgraduate exam candidates, offering a powerful memory engine and curated vocabulary lists. It features intelligent review planning, multiple memorization techniques, and an integrated dictionary for efficient learning.

**Highlights:** Curated vocabulary for postgraduate exams, Powerful memory engine, Intelligent review planning, Multiple memorization techniques, Integrated dictionary, Quiz tool

**In-app purchases:** none


### KeepOnFirst

[App page](https://appshunter.io/ios/app/keeponfirst-pomodoro-timer/id6756566953)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pomodoro Pro Monthly | $0.99 | per month |
| Pomodoro Pro Yearly | $5.99 | per year |
| Pomodoro Pro Lifetime | $11.99 | one-time |


## Frequently asked questions

### Is 易呗背单词 free?

易呗背单词 is free to download, with no in-app purchases.

### Is KeepOnFirst free?

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

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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.*