Duochang vs E
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Duochang
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.
- Search by singer, song title, or playlist
- Convenient song selection
- Playback controls (pause, play, skip)
- Volume adjustment
- Simple operation
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Duochang APP，让唱歌变成简单的事情。可以通过歌星、歌名、歌单进行搜索，唱您想唱的歌，点歌超方便。还可以通过APP进行暂停、播放、切歌、调节音量等控制，操作很简单，唱歌更轻松。
E
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.
- 3D dice simulation
- Single or multiple dice options
- Color cup dice mode
- Solo and multiplayer gameplay
- Customizable number of dice
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Dice Simulator 3D is a simulated 3D dice software that is more convenient to use during entertainment gatherings and drinking. It can be played alone or by multiple players, with the option to choose the number of sieves and the color cup method. Gameplay: 1: A single dice. 2: Multiple dice. 3: Color cup dice.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Duochang | E |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (6 ratings) | 4.7 (15 ratings) — better |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 6 | 15 — better |
| Update frequency | Every 3 months | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 50 MB | 95 MB |
| Age rating | 4+ | 4+ |
| Developer | Fujian Star-net eVideo Information Systems Co.,Ltd. | 晓静 韦 |
Customer experience
Duochang
E
In-app purchases
Duochang
No in-app purchases
E
- Remove AD$7.99
