Comparison

Delvr vs Chord Trees

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

Head to head
About

Delvr

Features
Read full description

How Delvr Works Delvr helps you understand any topic through layered explanations: • Simple – a clear, plain-language overview • Why / How – deeper context and reasoning • Expert Peek – a more advanced look for curious learners Users can enter a question and immediately explore explanations at different depths, all within a single flow. Access & Usage • Delvr is currently fully free to use. • No account, login, or subscription is required. • All explanation layers are available without restrictions.

About

Chord Trees

This interactive tool helps musicians visualize and understand chord connections. Explore harmony, compare instrument voicings, and practice ear training with arpeggio loops. Designed for students, songwriters, producers, and teachers.

Highlights
  • Interactive chord tree visualization
  • Piano chord inversions
  • Guitar chord fingerings
  • Diatonic harmony exploration
  • Arpeggio loop playback
  • Multiple instrument sounds
Features
Read full description

Chord Trees is an interactive harmony practice tool by Nathaniel School of Music for musicians who want to see, hear, and understand how chords connect. Build chord trees from notes, explore diatonic harmony, compare piano inversions and guitar fingerings, and loop arpeggios with real instrument sounds. The app is designed for students, songwriters, producers, and teachers who want a visual way to internalize chord progressions. FEATURES * Interactive chord tree visualization * Piano chord inversions and keyboard layouts * Guitar chord fingerings and voicing options * Diatonic mode with major-scale harmony and modes * Arpeggio loop playback for ear training * Instrument combinations including piano, guitar, strings, brass, synth, harp, and marimba * Beginner, intermediate, and advanced learning modes * Works without an account BY NATHANIEL SCHOOL OF MUSIC Built for practical music learning, chord fluency, and composition practice.

Screenshots

Delvr4 screens
Chord Trees4 screens

Verdict

The call

The clearest difference is update cadence: Chord Trees at every 5 days against Delvr's fortnightly. On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Delvr ships an update fortnightly, Chord Trees every 5 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 8 level
Delvr versus Chord Trees: the parameters behind the verdict, then further details
ParameterDelvrChord Trees
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size38 MB3 MB
Age rating4+4+
DeveloperMaevin Labs LLCJason Zachariah

In-app purchases

None

Delvr

No in-app purchases

None

Chord Trees

No in-app purchases

Questions

Is Delvr free?
Delvr is free to download, with no in-app purchases.
Is Chord Trees free?
Chord Trees is free to download, with no in-app purchases.
Do Delvr or Chord Trees have ads?
Neither Delvr nor Chord Trees shows ads.
Which is updated more often, Delvr or Chord Trees?
Delvr ships an update fortnightly, and Chord Trees every 5 days. Most recently, Delvr was updated on October 28, 2026 and Chord Trees on October 25, 2026.

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