Comparison

Looper Pro vs 键盘移调器

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Looper Pro

Features
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Looper Pro - 极简多轨录音循环器 Beatbox 练习: 多层次叠加节奏,打造震撼的人声乐团。 乐器即兴: 吉他、钢琴、合成器,轻松构建多轨背景伴奏。 人声叠唱: 实验性的和声设计与旋律编排。

About

键盘移调器

Features
Read full description

SUBSCRIPTION REQUIRED: Transposer is a free download, but an auto-renewable Transposer Pro subscription (In-App Purchase) is required to access the app’s features. A free trial may be available. Subscription length and price are shown in the app and on the App Store purchase sheet before you confirm. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings > Apple ID > Subscriptions. Transposer is a MIDI transpose utility for electronic keyboards. Connect a compatible keyboard via USB, choose your instrument profile, and reach your target key in one tap. Features unlocked with Transposer Pro (In-App Purchase): • One-tap transpose control for live performance • Support for many popular keyboard models • Multiple device connection • Custom presets for songs and keys • Background MIDI while the screen is locked Privacy Policy: https://briancaoyu.github.io/Transposer/privacy.html Terms of Use (EULA): https://briancaoyu.github.io/Transposer/terms.html

Screenshots

Looper Pro4 screens
键盘移调器4 screens

Verdict

The call

The clearest difference is price: 键盘移调器 at Free against Looper Pro's $0.99. 键盘移调器 also leads on update cadence (daily vs monthly). Looper Pro's advantage is iOS requirement (13.0 vs 17.0). On ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

键盘移调器 is free to download; Looper Pro costs $0.99 up front. Looper Pro sells 1 one-off in-app purchase and 键盘移调器 sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Looper Pro ships an update monthly, 键盘移调器 daily. The most recent releases landed on September 22, 2026 and September 15, 2026 respectively.

Scorecard3 real differences · 3 level
Looper Pro versus 键盘移调器: the parameters behind the verdict, then further details
ParameterLooper Pro键盘移调器
Price$0.99Free — better
Update frequencyMonthlyDaily — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size20 MB4 MB
Age rating4+4+
DeveloperGuangzhou Yaotian Cloud Technology Co., Ltd宇 曹

In-app purchases

1 purchases

Looper Pro

One-time1
  • Pro$4.99
1 purchases

键盘移调器

Subscriptions1
  • Transposer Pro Monthly7 Days trial$0.991 Month

Questions

Is Looper Pro free?
Looper Pro costs $0.99, and also offers in-app purchases.
Is 键盘移调器 free?
键盘移调器 is free to download, with in-app purchases available.
Do Looper Pro or 键盘移调器 have ads?
Neither Looper Pro nor 键盘移调器 shows ads.
Which is updated more often, Looper Pro or 键盘移调器?
Looper Pro ships an update monthly, and 键盘移调器 daily. Most recently, Looper Pro was updated on September 22, 2026 and 键盘移调器 on September 15, 2026.

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