TriadsPro Lite vs Chordzilla
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TriadsPro Lite
This app helps guitarists understand and visualize triads and inversions on the fretboard. It offers interactive tools for learning chord movement and includes a game to test knowledge and build muscle memory.
- Visualize guitar triads instantly
- Understand triad inversions
- Learn through play with identification game
- Clean, focused learning experience
- No internet required after installation
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TriadsPro Lite is the free introduction to the TriadsPro system — designed to help guitarists understand and visualize triads, inversions, and chord movement on the fretboard without overwhelm. Whether you’re new to triads or looking for a clearer way to connect theory to real playing, TriadsPro Lite gives you hands-on tools to start learning immediately. What You Can Do with TriadsPro Lite • Visualize Guitar Triads Instantly Pick a key and see major and minor triads on an interactive fretboard. Learn where triads live instead of memorizing isolated shapes. • Understand Triad Inversions Explore how triads move across the neck using simple, repeatable positions that build real fretboard awareness. • Learn Through Play Test your knowledge with a fun triad identification game designed to build recognition and muscle memory. • Clean, Focused Learning Experience No clutter, no ads during practice, and no internet required once installed. Upgrade When You’re Ready TriadsPro Lite includes a limited set of features. Unlocking TriadsPro Pro gives you full access to: • All triads and inversions in every key • Nashville Number System chord progressions • Movable triad voicings and advanced patterns • Backing tracks and song-based practice tools • Expanded learning modes and exercises Upgrade is a one-time purchase — no subscriptions. Perfect For Guitarists Who Want To: • Learn guitar triads clearly • Understand triad inversions • Improve chord movement and voice leading • Play more confidently in worship, pop, rock, or jazz settings Works on iPhone and iPad iOS 16 or later required © 2025 TriadsPro. All rights reserved.
Chordzilla
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# Chordzilla — 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 • Songwriters looking for an easy way to build chord progressions • Musicians who want to sketch melody ideas quickly • Beginners learning harmony and songwriting • Anyone who wants to compose music on a smartphone • 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: • MIDI export • Piano keyboard input • Song Information Export • Preset templates • 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
Verdict
The clearest difference is in-app purchases: TriadsPro Lite at none against Chordzilla's 1. TriadsPro Lite also leads on update cadence (every 9 days vs monthly) and device support (3 vs 1). On price, ads and iOS requirement 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
Both are free to download. Chordzilla sells 1 in-app purchase, starting at $1.99 per month. TriadsPro Lite asks for nothing beyond the download.
TriadsPro Lite ships an update every 9 days, Chordzilla monthly. Both last shipped on October 7, 2026.
| Parameter | TriadsPro Lite | Chordzilla |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 92 MB | 137 MB |
| Age rating | 4+ | 4+ |
| Developer | CHRISTIAN TRUJILLO | Katsuhiko Tamura |
In-app purchases
TriadsPro Lite
No in-app purchases
Chordzilla
- Chordzilla Premium$1.991 Month
Questions
Is TriadsPro Lite free?
Is Chordzilla free?
Do TriadsPro Lite or Chordzilla have ads?
Which is updated more often, TriadsPro Lite or Chordzilla?
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