# ChordFlow: Piano Chord Trainer

> Sight-Reading, Improv & MIDI

Canonical page: [https://chrome-stats.com/d/id6759816696](https://chrome-stats.com/d/id6759816696)

## Overview

- **ID:** `id6759816696`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** 泽 眭
- **Category:** Music
- **Rating:** 5.00 / 5 (2 ratings)
- **Version:** 1.1.11
- **Last updated:** 2026-09-02
- **First published:** 2026-03-10
- **Size:** 60 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/chordflow-piano-chord-trainer/id6759816696)
- **Privacy policy:** [https://flash-artichoke-9fd.notion.site/Privacy-Policy-31a51c4c1e3a800fb537cf8dd494979c](https://flash-artichoke-9fd.notion.site/Privacy-Policy-31a51c4c1e3a800fb537cf8dd494979c)

## Description

ChordFlow turns your iPhone or iPad into a chord practice room. Play a chord and see its name instantly, build fluency with three sight-reading modes plus Cross-Key Practice, and improvise over the built-in accompaniment machine. Practice on the touchscreen, or connect a MIDI keyboard or digital piano.

REAL-TIME CHORD RECOGNITION
• Recognizes 45+ chord types: triads, 6ths, 7ths, 9ths, 11ths, 13ths, sus and added-tone chords
• Correctly names inversions and slash chords like Dm/G
• A rising waterfall visualizes every note you hold
• The sustain pedal (CC 64) is handled separately for sound and for analysis, so holding the pedal never blurs one chord into the next

PRACTICE MODES
• Zen: no timer. Optional chord-tone hints, plus a grace window for pedal legato
• Groove: play on the beat. The metronome keeps time and scores the timing of your first note
• Fast: pure reaction. Nail a chord and the next one appears — chase your best BPM
• Cross-Key Practice: Transpose and Mixed Keys drills

OPTIONAL MIDI KEYBOARD
• Every feature works on the on-screen keyboard, which adapts to your device
• Plug in a MIDI keyboard and the view expands to all 88 keys — connect or disconnect anytime
• Velocity and sustain pedal supported
• Prefer the sound of your own instrument? Mute the in-app piano

ACCOMPANIMENT MACHINE (PRO)
• Preset progressions: 1-6-4-5, classic pop (4-5-3-6-2-5-1), Canon, pop-rock (6-4-1-5) and more
• Create and save your own progressions, or have it draw random chords from qualities you pick
• Block or arpeggiated playback, with adjustable tempo, chord duration, bass root, sustain, metronome and loop count
• Play along, and colors show which target tones you actually hit

TRACK YOUR PROGRESS
• Practice calendar with streaks, personal bests for every key, and full session history
• 25 achievements covering key mastery, habits, theory and performance
• Export and import your data anytime — everything is stored on your own device

PRACTICE YOUR WAY
• All 12 keys, with 29 chord qualities and inversions configurable per position — major, minor, diminished, augmented, sus, and 7ths through 13ths
• Keep drills diatonic, or lift the restriction and combine chords freely
• Flexible matching (correct chord tones) or exact matching (bass note included)
• Roman or Arabic numerals for scale degrees
• 10 languages, with chord and theory terms following each language's own conventions

FREE VERSION INCLUDES
Chord recognition, free play, all three sight-reading modes, Cross-Key Practice, and the built-in progressions, plus the practice calendar, personal bests and every achievement.

PRO UNLOCKS
All 12 keys, custom progressions, and the accompaniment machine. Choose a monthly subscription with a free trial, or buy once and keep it for good.

GOOD TO KNOW
• Works fully offline — no account, no ads, and no practice data ever leaves your device
• Landscape orientation, designed for both iPhone and iPad
• Made by an indie developer who uses it for his own improv practice. Questions or ideas? Email me — I usually reply the same day

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://flash-artichoke-9fd.notion.site/Privacy-Policy-31a51c4c1e3a800fb537cf8dd494979c

## Rankings

- #661,397 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6759816696)