Cotracks vs 开嗓练习
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cotracks
Create music collaboratively on a single iPad with a multitrack sequencer. Record and play back your own parts in sync with others, building complex tracks with various instruments and effects. Designed to maintain creative flow for solo or group sessions.
- Multitrack sequencer with up to 12 instrument tracks
- Beat synchronized playback and recording
- Dedicated interface modes for 1, 2, or 4 users
- Polyphonic and monophonic synthesizers with quality presets
- Sample player with professional library
- Stereo delay, phaser, and equalizer effects
- Audiobus support and audio export options
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"Cotracks is a brilliant concept and, on the whole, has been beautifully realised by Futucraft." - MusicAppBlog.com "Cotracks is a great platform for creation that has hit upon a clever collaborative setup." - Apps Magazine "A new approach to collaboration" - PalmSounds.net Cotracks is a collaborative music studio for teamwork on a single iPad. With Cotracks you can create multiple layers of loops and phrases using multiple instruments. Cotracks is designed to maintain your creative flow and is always ready to capture your ideas, regardless whether you are flying solo or collaborating with others. It's like playing with a band, but this time you can record and play back your own parts, in perfect sync with others, and create the constituents for a great track at the same time. With Cotracks the whole is greater than the sum of its parts. FEATURES MULTITRACK SEQUENCER • up to 12 instrument tracks • beat synchronized playback and recording INTERFACE • comfortable access for multiple users • dedicated interface modes for single user, two users and four users • switch between interface modes with a single tap • independent playback control constantly available for each instrument • repeater lets you play and record complex beat synced rhythmic textures • XY-modulation control EDITING • nondestructive quantize, transpose and swing • change the playback scale of recorded sequences • drag and drop copying of sequences between instruments INSTRUMENTS • polyphonic synthesizer with dozens of high quality instrument presets • monophonic bass/lead synthesizer with dozens of high quality instrument presets • sample player with a library of professional quality samples from Inspire Audio • programmable XY-modulation • band-limited oscillators to ensure professional grade sound quality FX • stereo delay • stereo phaser • 2 equalizer units • dedicated units for each track SHARING • Audiobus support • export each instrument to separate audio clip • export all in one audio mixdown clip SUPPORT • on-screen help and tips • online support integrated in app • video tutorials
开嗓练习
This app provides structured vocal training exercises to improve singing technique. It offers personalized practice plans, real-time feedback on pitch and breath control, and aims to enhance vocal stability, tone, and range over a 15-day program.
- Personalized vocal training plans
- Real-time pitch and breath control feedback
- Dynamic scale visualization
- Guided vocal exercises
- 15-day singing improvement program
- Addresses common vocal issues
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每日开嗓 App 可以帮助您进行唱歌练声的训练,在练声的过程中,系统根据您的声带特性,进行系统的练习与矫正,达到您理想的发声状态,从而令您在唱歌时气息稳定,音质饱满,音调准确,音色动听。 通过一个15天的唱歌练声计划,您可以全方位的进行唱歌时的呼吸与气息控制练习,气息稳定性练习,气息流动性练习,胸腔共鸣的喉位稳定性练习,胸腔共鸣练习,哼鸣音练习,头腔共鸣的声音平衡练习,唱歌时的高低音转换与平衡练习,混声的闭口音练习,混声的开口音练习。 每日开始 App 将帮助您解决: 1:唱歌时高音上不去的问题。 2:唱歌时低音下不来的问题。 3:唱歌时气息不够用的问题。 4:唱歌时声音虚弱无力的问题。 每日开嗓的练声功能,不同于一般的唱歌练声视频教程,它集合了示范演示,跟唱练习,独唱练习,问题讲解等功能,用户在 每日开嗓 App 里可以生成练声计划,在每天的练声计划里,跟着示范同步练习,还可以通过 App 及时发现练习中的错误,及时纠正。 在练声的过程中,用户可以及时得到 App 软件系统的练习指导,比如当练习到呼气练习时,对于气息不稳和漏气等常见发音错误问题,App 会同步反馈到用户,让用户更准确做发音练习。 App 提供练声时动态的音阶图,用户可以直观看到曲线中练习声调,通过音阶图,实时进行练习,当发音不准时,可以通过 App 中的曲线,及时的发现音准偏离标准音,进行发音的调整。 我们的声音就是自己的乐器,跟着每日练声计划循序渐进的学习,从 “气息”,“胸腔”,“头腔”,“高低音”,“开闭口音” 5个纬度,10个训练方向,一步步有计划练习。 每天 20-30 分钟的开嗓练声, 15-20天后,您唱歌会有质的飞跃!
Screenshots
Verdict
The clearest difference is price: 开嗓练习 at Free against Cotracks's $29.99. 开嗓练习 also leads on update cadence (every 5 weeks vs every 6 months) and rating (5.0 vs 4.7). Cotracks's advantage is in-app purchases (none vs 7). On ratings volume, ads and iOS requirement 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
开嗓练习 is free to download; Cotracks costs $29.99 up front. 开嗓练习 sells 7 one-off in-app purchases. Cotracks asks for nothing beyond the download.
开嗓练习 holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 86% of Cotracks's written reviews are positive against 100% of 开嗓练习's.
Cotracks ships an update every 6 months, 开嗓练习 every 5 weeks. The most recent releases landed on June 5, 2026 and October 12, 2026 respectively.
| Parameter | Cotracks | 开嗓练习 |
|---|---|---|
| Price | $29.99 | Free — better |
| Rating | 4.7 (3 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 85.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 3 |
| Update frequency | Every 6 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 11.1 — better |
| Further details — not scored | ||
| Size | 45 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Futucraft Oy | 卉璇 何 |
Customer experience
Cotracks
开嗓练习
In-app purchases
Cotracks
No in-app purchases
开嗓练习
- 解锁练声工具$0.99
- 解锁节拍器工具$0.99
- 移除广告$0.99
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- 多轨道录音工具$0.99
- 打包解锁所有的工具及移除广告$1.99
- 《每日练声计划》优惠版$19.99
- 《每日练声计划》$25.99









