# 易呗背单词 vs SAT1600

The clearest difference is update cadence: SAT1600 at every 3 weeks against 易呗背单词's every 15 months. 易呗背单词's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

易呗背单词 ships an update every 15 months, SAT1600 every 3 weeks. The most recent releases landed on June 3, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 易呗背单词 | SAT1600 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (10 ratings)](https://appshunter.io/ios/app/sat/id628003919/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 152 MB | 17 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Enguru LLC](https://appshunter.io/developer/1049219570) | [Shenzhen Saida Education Consulting Co., Ltd.](https://appshunter.io/developer/1067545861) |

## What reviewers say

### 易呗背单词

[App page](https://appshunter.io/ios/app/sat/id628003919)

This app offers a specialized SAT English vocabulary builder, leveraging a powerful memory engine and cloud storage. It features intelligent review planning, multiple memorization techniques, integrated dictionary lookup within example sentences, and a user-friendly quiz tool.

**Highlights:** SAT English vocabulary focus, Powerful memory engine, Cloud storage and sync, Intelligent review planning, Multiple memorization techniques, Integrated dictionary, Quiz tool

**Features:** macOS Compatibility

**In-app purchases:** none


### SAT1600

[App page](https://appshunter.io/ios/app/sat1600/id1395861326)

**Features:** macOS Compatibility

**In-app purchases:** none


## 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 SAT1600 free?

SAT1600 is free to download, with no in-app purchases.

### Do 易呗背单词 or SAT1600 have ads?

Neither 易呗背单词 nor SAT1600 shows ads.

### Which is updated more often, 易呗背单词 or SAT1600?

易呗背单词 ships an update every 15 months, and SAT1600 every 3 weeks. Most recently, 易呗背单词 was updated on June 3, 2026 and SAT1600 on September 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.*