Comparison

Chord vs Extended Violin Technique

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

Head to head
About

Chord

Unlock musical creativity with a suite of tools for composing and practicing. Generate chord progressions, practice notation, train your ear, and even use your device as a MIDI keyboard. Includes a macOS version for seamless integration.

Highlights
  • Chord progression generation with inversions and extensions
  • Live playback as piano or synth
  • MIDI output to macOS
  • Guitar chord finder
  • Notation reading practice
  • Ear training for intervals and voice
  • macOS version included
Features
Read full description

This app plus your ears equals complete freedom in writing music! A comprehensive set of tools for any musician: * Chord Progression: Create beautiful chord progressions with full flexibility - use inversions, sus2, sus4, 7th, 9th, and more. Enjoy live playback as piano or synth, or send MIDI directly to your macOS computer! * Guitar Chords - helps you find and browse guitar chords. * MIDI Keyboard: Transform your phone into a MIDI keyboard for your macOS computer (compatible with macOS Catalina and newer). * Notation Practice: Practice reading notes in both treble and bass clefs. * Chord Calculation: Help you learn how to calculate chords and progressions. * Interval Practice: Practice recognizing and comparing musical intervals by ear. * Voice & Ear Training: Simple, effective tools for voice practice and ear training. * Harmonic Match - helps you mix tracks in key while DJing. * Guitar tuner - helps you tune your guitar to the most popular tunings. * Modulation Pad - Helps when using a compact MIDI keyboard without built-in pitch and modulation controls. Also includes a sustain pedal (compatible with macOS Catalina and newer). Plus, enjoy the macOS version included with your purchase!

About

Extended Violin Technique

Explore a vast collection of extended violin techniques with definitions, notation examples, and videos. This app aids students in preparing difficult pieces and composers in discovering new violin sounds. It also features a section for composers to share their work.

Highlights
  • Extended violin technique explanations
  • Notational examples
  • Demonstrative videos
  • Searchable content
  • Composer music submission section
Features
Read full description

This app addresses the need for a comprehensive analysis and explanation of the great variety of extended violin techniques that have emerged over the past century. Its exhaustive contents, combining small textual definitions with notational examples and demonstrative videos, will serve as a great starting point for the violin student addressing the preparation of challenging new music and for the composer exploring new violin sonorities within her/his music. The app allows the user to search for specific contents (i.e. composer, work title, technique name) and has a dedicated section for new composers to upload samples of their music that might expand the current selection of techniques and notational solutions. We hope that you find it useful and inspiring as a performative and compositional tool.

Screenshots

Chord4 screens
Extended Violin Technique4 screens

Verdict

The call

The clearest difference is price: Extended Violin Technique at Free against Chord's $3.99. Extended Violin Technique also leads on iOS requirement (12.0 vs 15.0). Chord's advantage is rating (4.8 vs 3.0) and update cadence (monthly vs every 40 months). On ads and in-app purchases 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

Extended Violin Technique is free to download; Chord costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Chord holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Chord has 81 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Chord ships an update monthly, Extended Violin Technique every 40 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard7 real differences · 3 level
Chord versus Extended Violin Technique: the parameters behind the verdict, then further details
ParameterChordExtended Violin Technique
Price$3.99Free — better
Rating4.8 (81 ratings) — better3.0 (2 ratings)
Positive reviews57.1% of reviews—
Number of ratings81 — better2
Update frequencyMonthly — betterEvery 40 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod, Mac, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size47 MB154 MB
Age rating4+4+
DeveloperRoman SevastyanovApps Resource Centre, Hong Kong Baptist University

Customer experience

Chord

All ratings81 ratings
Positive95.1%
Neutral1.2%
Negative3.7%
Written reviews21 reviews
Positive57.1%
Neutral19.0%
Negative23.8%

Extended Violin Technique

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Chord

No in-app purchases

None

Extended Violin Technique

No in-app purchases

Questions

Is Chord free?
Chord costs $3.99, with no in-app purchases.
Is Extended Violin Technique free?
Extended Violin Technique is free to download, with no in-app purchases.
Which has better reviews, Chord or Extended Violin Technique?
Chord is rated higher. Chord averages 4.8 out of 5 from 81 ratings, while Extended Violin Technique averages 3.0 from 2 ratings.
Do Chord or Extended Violin Technique have ads?
Neither Chord nor Extended Violin Technique shows ads.
Which is updated more often, Chord or Extended Violin Technique?
Chord ships an update monthly, and Extended Violin Technique every 40 months. Most recently, Chord was updated on October 29, 2026 and Extended Violin Technique on October 24, 2026.

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