Appworthy
App Store
Version 2.5.0 · 2026-10-16
1. 新增AI零基础声乐互动课 2. 音阶练习新增范围循环
App Store rating4.8★166 ratings
PriceFreeIn-app $3.99–$29.99
Age4+Store age rating
Size271 MBiPhone download
CategoryLifestyle
What we found
Full reportToo little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Money
- Free to download · in-app purchases $3.99–$29.99 (6 listed). The store doesn’t say how often these bill.
- If you subscribe through the store, cancel in iPhone Settings → your name → Subscriptions. Deleting the app doesn’t cancel a subscription.
Not yet tested.
The store currently lists version 2.5.0, updated 2026-10-16.
Preview
Store screenshots supplied by the developer.
About this app
开嗓练声App是专为学习声乐的用户提供音阶训练、实时检测音高、声乐教学、视唱练耳的实用软件。
【音阶练习】常用音阶练习，有不同的发音教学和图文参考，支持自定义音阶，想练什么都可以。
【音高检测】音调仪检测和显示练习的音高和音准，帮你快速掌握发声稳定性
【声乐教学】呼吸、吐气、音准、视听课程讲解、真人示范教学
【视唱练耳】音高听辩训练，单音、旋律视唱，实时识别音准智能打分
【实用工具】内置节拍器、钢琴键盘，帮你掌握节奏，随时随地开始弹唱表演
隐私政策：https://base.quthing.com/base/agreement/privacy.html?appPackage=vocalmusic_ios&appChannel=AppStore
用户协议：https://base.quthing.com/base/agreement/user.html?appPackage=vocalmusic_ios&appChannel=AppStore
会员协议：https://base.quthing.com/base/agreement/vip.html?appPackage=vocalmusic_ios&appChannel=AppStore
From the developer’s store description.
For developers and the curious
The full report
The evidence, sources, measurements and versions behind every label above.
Findings and evidence
Not yet tested. No analysis has been published for this app. A missing label is not a clean bill of health.
What reviewers report
No review analysis published for this app.
Measurements
“Not assessed” means we could not measure it. It is never a zero and never a pass.
From store data and reviews
Developer replies to reviews
Not assessed
Fewer than 50 reviews scanned — too few to state a rate
Price in the store description
The store description doesn’t list prices (most don’t)
Cancelling, in the store description
The store description doesn’t say how to cancel (most don’t)
Themes reported by reviewers
Not assessed
This app's reviews have not been assessed yet
Five-star share of ratings
80–89% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.
In the app package we scanned
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Sensitive permissions
Not assessed
No package has been scanned for this app
Analytics or tracking SDKs in the scanned package
Not assessed
No package has been scanned for this app
Advertising SDKs in the scanned package
Not assessed
No package has been scanned for this app
How we know
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
Versions and dates analysed
Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Store update history
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Assessment record
- Status
- Not yet tested
- App identifier
apple-1591389896- Sources used
- None recorded
- Reviews read
- None recorded
- Package examined
- No package scan
- Human inspection
- Not completed
How we know
- Measurement vocabulary
- 1.4
Store facts
What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
App Store
- Store rating
- 4.75 ★ · 166 ratings
- Version
- 2.5.0
- Updated
- 16 Oct 2026
- Price
- Free · In-app purchases
- Age rating
- 4+
- Size
- 271 MB
- Developer
- Beijing Laiyin Innovation Technology Co., Ltd.
- Category
- Lifestyle
- Listing price
- Free · In-app purchases
Purchases the store lists
What this app sells
From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.
Show 6 more purchases we couldn’t categorise
These are really on sale; we just can’t tell from the name whether they recur.
开嗓练声季度会员Term not stated$7.99
开嗓练声年度会员Term not stated$19.99
开嗓练声月会员Term not stated$3.99
1个月会员Term not stated$5.99
合唱团季会员Term not stated$14.99
合唱团-年会员Term not stated$29.99
Method and limits
What a missing label means
Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.
Limits of this report
- A package scan is static. It identifies code and text in one Android build. It does not measure a live ad session, test a deletion request, or count the steps needed to cancel.
- Reviews keep their sample. A review-only charge shows distinct reviewers, the share and the sample size, and is published only once it clears that label’s published threshold. Calibration labels are machine-drafted and not yet confirmed by a person.
- Not assessed is a state. It is never a zero and never a pass.
- A missing label is not a clean bill of health. It means the evidence did not support one, not that the app is problem-free.
Not yet human-reviewed. A human review gives an app hands-on, recorded measurements. None has been run for this app. Hands-on inspections are not yet open.
Request a correction
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.