# 德语单词训练营 vs PolyEcho

The clearest difference is in-app purchases: 德语单词训练营 at none against PolyEcho's 4. PolyEcho's advantage is update cadence (every 5 days vs every 3 weeks) and iOS requirement (13.0 vs 15.5). On price, ads and device support there is nothing between them.

Both are free to download. PolyEcho sells 4 in-app purchases, starting at $12.99 per month. 德语单词训练营 asks for nothing beyond the download.

德语单词训练营 ships an update every 3 weeks, PolyEcho every 5 days. The most recent releases landed on November 13, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 德语单词训练营 | PolyEcho |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 73.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 54 MB | 207 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zhaya Deutsch](https://appshunter.io/developer/1543690970) | [楷博 尚](https://appshunter.io/developer/1801785390) |

## What reviewers say

### 德语单词训练营

[App page](https://appshunter.io/ios/app/id1604804250)

This app helps Chinese speakers learn German vocabulary through daily practice. It offers interactive exercises for selection and spelling, allows users to create custom word lists, and provides definitions and example sentences. Users can adjust the learning pace and interface language.

**Highlights:** Daily vocabulary practice sets, Selection and spelling exercises, Customizable word lists, Definitions, example sentences, and word forms, Adjustable learning pace, Multiple interface languages

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

**In-app purchases:** none


### PolyEcho

[App page](https://appshunter.io/ios/app/polyecho/id6743313316)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $12.99 | per month |
| Semi-Annual Subscription | $59.99 | per 6 months |
| Annual Subscription | $99.99 | per year |
| 5-Time Conversation Credit | $2.99 | one-time |


## Frequently asked questions

### Is 德语单词训练营 free?

德语单词训练营 is free to download, with no in-app purchases.

### Is PolyEcho free?

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

### Do 德语单词训练营 or PolyEcho have ads?

Neither 德语单词训练营 nor PolyEcho shows ads.

### Which is updated more often, 德语单词训练营 or PolyEcho?

德语单词训练营 ships an update every 3 weeks, and PolyEcho every 5 days. Most recently, 德语单词训练营 was updated on November 13, 2026 and PolyEcho on November 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*