Comparison

Tone Craft vs SUS4 Chord ID

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

Head to head
About

Tone Craft

Features
Read full description

Tone Craft is your all-in-one music practice studio for instrumentalists. Tuner, metronome, harmony, attack analysis, recording, and the newly added Scale Practice. Everything you need for daily practice, in one app. 【New: Scale Practice tab】 A fourth pillar of practice, alongside the tuner and metronome. Follow a score that scrolls across the screen while a reference tone plays, and practice long tones, arpeggios, lip slurs, and scales. Train accurate pitch and fingering with your eyes, ears, and fingers all at once. - Accompaniment: every mode plays chord backing so you practice inside the right harmony - Two-layer sound: the original range plus one octave up, for a full, rich accompaniment - Record & play back: capture what you played and review it against the waveform 【Daily practice in one app】 - Tuner: high-precision pitch detection with low latency - Metronome: irregular and compound meters, with a pendulum display - Harmony: switch between just and equal temperament to learn beats by ear - Attack analysis: capture waveform and spectrum the moment a note begins - Recording: waveform preview and seek playback - Scale Practice: flowing score, reference tone, and accompaniment to train pitch and fingering 【Pro-grade features, daily-touch UI】 The tuner tracks voice and instruments instantly with low latency. The harmony tab lets you switch between just intonation and equal temperament to hear the beating with your ears. The reference pitch and harmony now use a rich, dual-octave sound that makes those beats easier to hear. 【Themes】 Paper, Dark, Steampunk, Japanese and more — switch the mood to match your session (some Pro). 【Privacy】 All processing stays on your device. Recordings and tuning history never leave your phone. 【For】 Wind ensemble students, music college students, vocalists, brass and string players — anyone touching an instrument every day.

About

SUS4 Chord ID

Identify chords by playing them into your device's microphone or by tapping notes on a virtual keyboard. It recognizes ten chord types and offers guitar fingerings. Save your progressions with notes for future reference.

Highlights
  • Microphone chord detection
  • Virtual keyboard input
  • Ten chord types recognized
  • Guitar fingerings
  • Saved chord history with notes
  • On-device processing
Features
Read full description

Play a chord into the mic and see its name, with the top three matches and how sure it is. Or tap the notes on the built-in keyboard. Fully on-device: no cloud, no account. Chord ID knows ten chord types: major, minor, dominant 7th, major 7th, minor 7th, diminished, augmented, sus2, sus4 and power chords. Save the chords you want to keep, add a note, and you have a record of the progression you were working on. • Mic detection with the top three candidates and a confidence for each • A keyboard for tapping notes in • Ten chord types, from triads to 7ths and sus chords • Guitar fingerings for common open chords • A saved history with notes For guitarists working out a song, pianists checking a voicing, and theory students. Everyone gets a few identifications a day. Pro, or SUS4 All-Access across the whole range, removes the daily limit. Made in the UK by working musicians. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Tone Craft4 screens
SUS4 Chord ID4 screens

Verdict

The call

The clearest difference is update cadence: Tone Craft at weekly against SUS4 Chord ID's fortnightly. SUS4 Chord ID's advantage is device support (4 vs 2) and iOS requirement (16.0 vs 18.6). On price, 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

Both are free to download. Tone Craft sells 1 one-off in-app purchase and SUS4 Chord ID sells 10 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Tone Craft ships an update weekly, SUS4 Chord ID fortnightly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
Tone Craft versus SUS4 Chord ID: the parameters behind the verdict, then further details
ParameterTone CraftSUS4 Chord ID
PriceFreeFree
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad, Mac, Apple Watch — better
Requires iOS18.616.0 — better
Further details — not scored
Size22 MB30 MB
Age rating4+4+
DeveloperDaisaku SetoThePaulSmith

In-app purchases

1 purchases

Tone Craft

One-time1
  • Tone Craft Pro$1.99
10 purchases

SUS4 Chord ID

Subscriptions8
  • SUS4 Chord ID Pro Monthly7 Days trial$2.991 Month
  • SUS4 All-Access7 Days trial$4.391 Month
  • SUS4 All-Access7 Days trial$5.991 Month
Show 5 more
  • SUS4 All-Access7 Days trial$7.991 Month
  • SUS4 All-Access Annual7 Days trial$19.991 Year
  • SUS4 All-Access Annual7 Days trial$26.991 Year
  • SUS4 All-Access Annual7 Days trial$35.991 Year
  • SUS4 All-Access Annual7 Days trial$51.991 Year
One-time2
  • SUS4 Chord ID Lifetime$54.99
  • SUS4 Chord ID Lifetime$103.99

Questions

Is Tone Craft free?
Tone Craft is free to download, with in-app purchases available.
Is SUS4 Chord ID free?
SUS4 Chord ID is free to download, with in-app purchases available.
Do Tone Craft or SUS4 Chord ID have ads?
Neither Tone Craft nor SUS4 Chord ID shows ads.
Which is updated more often, Tone Craft or SUS4 Chord ID?
Tone Craft ships an update weekly, and SUS4 Chord ID fortnightly. Most recently, Tone Craft was updated on November 5, 2026 and SUS4 Chord ID on October 31, 2026.

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