# Duochang vs E

The clearest difference is rating: E at 4.7 against Duochang's 2.3. E also leads on update cadence (every 2 days vs every 3 months). Duochang's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. E sells 1 one-off in-app purchase. Duochang asks for nothing beyond the download.

E holds the better App Store score, 4.7 against 2.3. Both are backed by a comparable volume of ratings — 6 and 15 respectively.

Duochang ships an update every 3 months, E every 2 days. The most recent releases landed on June 1, 2026 and July 23, 2026 respectively.

## The numbers

| Metric | Duochang | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (6 ratings)](https://appshunter.io/ios/app/duochang/id1481190850/reviews) | **[4.7 (15 ratings)](https://appshunter.io/ios/app/e-dice-simulator/id6448078767/reviews)** |
| Number of ratings | 6 | **15** |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 50 MB | 95 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fujian Star-net eVideo Information Systems Co.,Ltd.](https://appshunter.io/developer/462036507) | [晓静 韦](https://appshunter.io/developer/1450782776) |

## What reviewers say

### Duochang

[App page](https://appshunter.io/ios/app/duochang/id1481190850)

This app simplifies singing by allowing easy searching of songs by artist, title, or playlist. Users can control playback, volume, and song selection directly from their device, making the karaoke experience more convenient.

**Highlights:** Search by singer, song title, or playlist, Convenient song selection, Playback controls (pause, play, skip), Volume adjustment, Simple operation

**Features:** macOS Compatibility

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-dice-simulator/id6448078767)

Simulate 3D dice rolls for entertainment gatherings and drinking games. Supports single or multiple dice, with options for different cup colors and numbers of dice. Enjoy solo or multiplayer fun.

**Highlights:** 3D dice simulation, Single or multiple dice options, Color cup dice mode, Solo and multiplayer gameplay, Customizable number of dice

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove AD | $7.99 | one-time |


## Frequently asked questions

### Is Duochang free?

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

### Is E free?

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

### Which has better reviews, Duochang or E?

E is rated higher. Duochang averages 2.3 out of 5 from 6 ratings, while E averages 4.7 from 15 ratings.

### Do Duochang or E have ads?

E shows ads; Duochang does not.

### Which is updated more often, Duochang or E?

Duochang ships an update every 3 months, and E every 2 days. Most recently, Duochang was updated on June 1, 2026 and E on July 23, 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.*