Comparison

Jebbio vs Chordzilla

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

Head to head
About

Jebbio

Features
Read full description

Jebbio β€” your reference for crafting solos, riffs, and melodies. Jebbio is a practical reference tool for guitarists who want to understand how chords and scales connect on the fretboard, and use that knowledge to create music. Built for guitar teachers, students, and self-taught players, Jebbio supports exploration and ear-based playing rather than step-by-step lessons or predefined licks. Choose the chord progression you’re playing or writing. Explore the keys and scales that fit your chords. See the notes on the fretboard, hear them, and explore freely at your own pace. Instead of running scales up and down, Jebbio helps you work with motifs, connect positions across the fretboard, and focus on phrasing, timing, and feel. Jebbio doesn’t tell you what to play. It gives you the tools to explore, understand, and create your own musical ideas.

About

Chordzilla

Features
Read full description

# Chordzilla β€” A Compact App for Creating Chord Progressions and Melodies Chordzilla is a compact songwriting app that lets you create chord progressions and melodies directly on your smartphone. Build chord progressions, compose melodies with Piano Roll editing, and export your work as WAV or MIDI. Capture musical ideas quickly with a simple and intuitive workflow. ## Chord Progression Editor Simply choose a key and scale to receive suggestions for the next chord. Explore diatonic chords, substitute chords, borrowed chords, tritone substitutions, subdominant minor chords, and more. Even without extensive music theory knowledge, you can build natural-sounding chord progressions with ease. Save your progressions as sections to build your own reusable chord library. ## Piano Roll Melody Editor Create melodies by tapping directly on the Piano Roll. Premium users can also enter notes using the on-screen piano keyboard. Melody examples matched to your chord progression are available to help inspire new musical ideas. ## Genre Presets Start with ready-made templates instead of creating everything from scratch. Includes over 18 presets, with more planned in future updates. ## Song Information Export Convert your song information into organized text, including key, scale, BPM, section structure, chord progression, and other production details. The generated text can be copied and used with compatible music production tools and external services. ## MIDI & WAV Export Export your chord progressions and melodies as MIDI files. You can also export WAV audio for further editing in your DAW or other music production software. ## Perfect For β€’ Songwriters looking for an easy way to build chord progressions β€’ Musicians who want to sketch melody ideas quickly β€’ Beginners learning harmony and songwriting β€’ Anyone who wants to compose music on a smartphone β€’ Creators who use additional music production tools in their workflow ## Premium Plan The free version includes all essential features for creating, playing back, and reviewing chord progressions. Upgrade to Premium (monthly subscription) to unlock: β€’ MIDI export β€’ Piano keyboard input β€’ Song Information Export β€’ Preset templates β€’ Unlimited sections ...and all future Premium features. We are committed to continuously improving Chordzilla with new features and ongoing enhancements. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Jebbio4 screens
Chordzilla4 screens

Verdict

The call

Jebbio and Chordzilla are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Jebbio sells 1 one-off in-app purchase and Chordzilla sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Jebbio ships an update every 6 weeks, Chordzilla monthly. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.

ScorecardNo meaningful differences
Jebbio versus Chordzilla: the parameters behind the verdict, then further details
ParameterJebbioChordzilla
PriceFreeFree
Update frequencyEvery 6 weeksMonthly β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS17.216.0 β€” better
Further details β€” not scored
Size22 MB137 MB
Age rating4+4+
DeveloperKlaas DamsmaKatsuhiko Tamura

In-app purchases

1 purchases

Jebbio

One-time1
  • Pro Access$4.99
1 purchases

Chordzilla

Subscriptions1
  • Chordzilla Premium$1.991 Month

Questions

Is Jebbio free?
Jebbio is free to download, with in-app purchases available.
Is Chordzilla free?
Chordzilla is free to download, with in-app purchases available.
Do Jebbio or Chordzilla have ads?
Neither Jebbio nor Chordzilla shows ads.
Which is updated more often, Jebbio or Chordzilla?
Jebbio ships an update every 6 weeks, and Chordzilla monthly. Most recently, Jebbio was updated on September 21, 2026 and Chordzilla on September 23, 2026.

Other comparisons