# Duoler vs 极简词卡

The clearest difference is iOS requirement: 极简词卡 at 15.6 against Duoler's 18.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Duoler sells 2 in-app purchases, starting at $2.99 per month and 极简词卡 sells 1 in-app purchase, starting at $3.99 per year. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Duoler | 极简词卡 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Size | 634 MB | 11 MB |
| Requires iOS | 18.1 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [翠涓 徐](https://appshunter.io/developer/1817823992) | [明析 宋](https://appshunter.io/developer/1879936697) |

## What reviewers say

### Duoler

[App page](https://appshunter.io/ios/app/duoler/id6756180237)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Annual Subscription | $24.99 | per year |


### 极简词卡

[App page](https://appshunter.io/ios/app/id6760890259)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 极简词卡 | $3.99 | per year |


## Frequently asked questions

### Is Duoler free?

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

### Is 极简词卡 free?

极简词卡 is free to download, with in-app purchases available.

### Do Duoler or 极简词卡 have ads?

Neither Duoler nor 极简词卡 shows ads.

### Which is updated more often, Duoler or 极简词卡?

Duoler ships an update every 6 weeks, and 极简词卡 every 6 weeks. Most recently, Duoler was updated on October 7, 2026 and 极简词卡 on October 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.*