Beijing Douyin Technology Co., Ltd.
Music v21.4.0
Does 汽水音乐 work on iPhone Duo?
Not confirmed yet. 汽水音乐 runs normally on iPhone Duo's outer display, but there's no reliable report yet of how it looks on the inner display.
At a glance
- Inner display (7.6″)
- Not confirmed yet
- Outer display (5.4″)
- Works normally
- Built with
- Not read yet
- We read each app's build SDK after it updates
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v21.4.0
- Oct 26, 2026
- Duo in release notes
- Not yet
About 汽水音乐
汽水音乐 is made by Beijing Douyin Technology Co., Ltd. and first came out on the App Store in March 2022. It's only on the China App Store, where it has 530,650 ratings. Version 21.4.0 came out on Oct 26, 2026 and needs iOS 13.0 or later. It's free to download.
From its App Store listing:
【汽水音乐】抖音出品官方音乐app，让音乐更懂你。 - 个性推荐，发现小众好歌 发现好音乐不再是难题。根据你和品味相似的人的听歌偏好，为你推荐感兴趣的歌曲，拒绝千篇一律，让音乐更懂你。 - 场景音乐&分类电台，随时找到你想听的音乐 学习/运动/打游戏/通勤途中时想听歌？想听嘻哈/摇滚/电音/R&B？场景音乐模式分类电台帮你随时随地，快速找到适合的音乐。 - 轻松好用，即开即听 简洁顺滑的交互设计，无需复杂操作，快速享受好音乐。 - 同步抖音音乐收藏，下次听更方便 视频中的好音乐，收藏不再是困难。支持抖音音乐收藏同步，听歌更方便。 - 特色榜单，为喜爱音乐的你而打造 了解喜爱音乐的人都在听什么歌，发现更多好歌 - 千万曲库，海量音乐随心听 收录流行/嘻哈/电音/摇滚/国风/民谣/独立/纯音乐/R&B/爵士/乡村/蓝调/雷鬼/拉丁等音乐品类，好歌听不完。 【汽水会员连续包月说明】 1.服务名称…
On the inner display
iPhone Duo shows each app in one of three ways depending on which SDK it was built with: letterboxed with black bars (iOS 26 or earlier), expanded with some empty space (iOS 27), or full screen (iOS 27.1 and later). We don't yet know which applies here.
汽水音乐 already ships an iPad version, so its layout already copes with larger screens. That gives its developer a head start on iPhone Duo's inner display, which reports the same regular size class as an iPad.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including 汽水音乐. Open it on the inner display, then add a second app next to it. You can save the pair and come back to it later.
Duo-specific features
None confirmed yet. Duo-specific features include side toolbars, layouts that react to the fold, and content on the outer display while the app is open inside.
Evidence & history
No evidence yet. We read this app’s build after its next update. If you have an iPhone Duo, tell us how 汽水音乐 looks — a screenshot helps.
Latest release notes
Version 21.4.0 · Oct 26, 2026
修复已知问题，优化播放体验。
Questions
Does 汽水音乐 work on iPhone Duo?
Not confirmed yet. 汽水音乐 runs normally on iPhone Duo's outer display, but there's no reliable report yet of how it looks on the inner display.
Does 汽水音乐 work on the outer display?
Yes. iPhone Duo's 5.4-inch outer display behaves like a regular iPhone screen, so every iPhone app works there as usual.
Can I use 汽水音乐 in Split View on iPhone Duo?
Yes. On iPhone Duo every app can be placed side by side with another app on the inner display — developers don't need to opt in. How comfortable it feels at half width depends on the app's layout.
Will 汽水音乐 have black bars on iPhone Duo?
It depends on the version of Apple's SDK the current build of 汽水音乐 uses: iOS 26 or earlier means black bars, iOS 27 means mostly filled, iOS 27.1 means full screen. We'll update this page as soon as there's evidence.