Comparison

Violin Teacher vs Compounds!

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

Head to head
About

Violin Teacher

Learn to play the violin with self-study tutorials designed for beginners. Track your daily practice and record your progress to become a violin expert.

Highlights
  • Self-study violin tutorials
  • Beginner violin lessons
  • In-depth violin lessons
  • Daily practice check-in
  • Record learning progress
  • Optimized for iPhone and iPad
Features
Read full description

Violin Self Study Tutorials. INCLUDES: • How To Play Violin • New Violin Lesson for Beginners • Learn How To Play Violin • InDepth Violin Lessons • Essential Elements Violin • Optimized for iPhone, iPad Daiy Practice CheckIn And Record Learn Progress Try it! Become A Violin Expert!

About

Compounds!

Features
Read full description

Learn to read and write Chinese characters in the order that makes the most sense. Compounds helps you master the most common simplified Chinese characters with a focused, research-backed learning path. Instead of throwing random characters at you, the app introduces them in an order designed to improve retention and reduce frustration, combining character frequency with structural relationships so new characters build naturally on ones you already know. Each study session is designed to help you: Learn high-value characters first Practice writing from memory Reinforce pronunciation and meaning Review at the right time so you remember more with less effort Compounds is built for learners who want a smarter way to study Chinese characters, whether you are starting from scratch or filling in gaps in your reading and writing. Why this order works: Compounds is inspired by research on efficient Chinese character learning strategies, especially work showing that character frequency and structural relationships can be combined to create a more effective progression. Optimal learning order based on: K. Zhao, D. Zhao, J. Yang, W. Ma and B. Yu, “Efficient Learning Strategy of Chinese Characters Based on Usage Frequency and Structural Relationship,” 2019 IEEE 4th International Conference on Big Data Analytics (ICBDA), Suzhou, China, 2019, pp. 351-355, doi: 10.1109/ICBDA.2019.8713245. Subscription A subscription is required for full access to all features. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Violin Teacher4 screens
Compounds!1 screens

Verdict

The call

The clearest difference is in-app purchases: Violin Teacher at none against Compounds!'s 2. Compounds!'s advantage is ads (none vs shown) and update cadence (monthly vs every 19 months). On price, device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Compounds! sells 2 in-app purchases, starting at $14.99 per month. Violin Teacher asks for nothing beyond the download.

UpkeepUpdate frequency

Violin Teacher ships an update every 19 months, Compounds! monthly. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 7 level
Violin Teacher versus Compounds!: the parameters behind the verdict, then further details
ParameterViolin TeacherCompounds!
PriceFreeFree
Rating4.5 (53 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings53 — better—
Update frequencyEvery 19 monthsMonthly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15 — better16.4
Further details — not scored
Size9 MB239 MB
Age rating4+4+
Developer叶 李Parotid

In-app purchases

None

Violin Teacher

No in-app purchases

2 purchases

Compounds!

Subscriptions2
  • Pro Monthly$14.991 Month
  • Pro Yearly3 Days trial$49.991 Year

Questions

Is Violin Teacher free?
Violin Teacher is free to download, with no in-app purchases.
Is Compounds! free?
Compounds! is free to download, with in-app purchases available.
Do Violin Teacher or Compounds! have ads?
Violin Teacher shows ads; Compounds! does not.
Which is updated more often, Violin Teacher or Compounds!?
Violin Teacher ships an update every 19 months, and Compounds! monthly. Most recently, Violin Teacher was updated on October 30, 2026 and Compounds! on October 27, 2026.

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