JustChords vs Resonator Player
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JustChords
Organize your song library with chord charts and lyrics. Create or import songs, sync across devices, and build setlists for live performances. Supports various music notations and audio playback.
- Chord chart and lyric editor
- Import songs from online sources
- iCloud device syncing
- Setlist creation and sharing
- AirPlay lyric projection
- Audio player and recorder
- Support for multiple music notations
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JustChords is your complete tool for cataloging chord charts and lyrics. Create charts from scratch, import them from files, or pull them from online sources — building a library that's always with you, synced across iPhone, iPad and Mac via iCloud. Use JustChords standalone or as an AUv3 plugin in your favorite DAW. FEATURES • Setlists, with sharing and collaboration • Song editor is based on ChordPro and supports chords & lyrics, note sheets (PDF), chord beats, guitar tabs and ABC notation • Change Key, Capo, Piano Transpose, Rewrite into key • Metronome & Tuner • Autoscroll • Guitar, ukulele and piano chord diagrams, including alternate tunings • Audio player & recorder. Attach your tracks from Apple Music, Spotify, YouTube, URL or local file • Project lyrics or a dedicated stage display via AirPlay, with rich configuration options • Bluetooth / MIDI pedal support • Chord Beats — visualize chord duration right in your chords & lyrics, send chord notes over MIDI as they play, and trigger predefined MIDI messages on section changes • Tonic Pad — an ambient backing pad matched to your song's key • PlayTogether — keep your whole band in sync live, hands-free
Resonator Player
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Music doesn't play. It resonates. Resonator casts your music to the speakers and TVs you already own. Full-quality playback on any Google Cast device — real subscriber streaming, not screen mirroring. THE ROOM FOLLOWS Tap a speaker, and the album moves to the room. Playback keeps running with your phone in your pocket — lock screen and CarPlay controls included. THE TURNTABLE The player is a record. Slide the cover aside, watch the disc spin at 33⅓, then grab it: the record is a jog wheel — drag to scrub with notched clicks under your finger, let go and it settles back to speed. Play a full album and the needle rides the whole side. CREDITS ON THE BIG SCREEN While a record plays on your TV, synced lyrics and the record's credits roll with it: producers, engineers, players — every hand that made it, drawn from MusicBrainz, the open encyclopedia of recorded music. Thumbs on the TV too — resonate from the couch. THE SLEEVE Every album opens like a gatefold: the artwork and alternate covers, the tracklist, liner notes, a personnel roster with portraits, and related records worth pulling off the shelf next. RESONANCE Start resonating from any song and Resonator drives artist to artist through real connections — the producers, songwriters, players, and label-mates in the liner notes, not a black-box feed. Thumbs up steers toward what resonates. Thumbs down never plays it again. Detour into a whole album; the mix parks and waits for you. And every resonance is kept — relive it later, note by note, from Resonance History. WHY THIS TRACK Every pick explains itself. Tap a track and see the road that led to it — who played on what, which record connected them, where the seed came from. Every name is a doorway you can walk through. HOW YOU FOUND THIS Every like remembers its own story. Months later, long-press a liked song and see the moment you found it — the resonance you were on, the seed it started from, the connection that carried it in — and walk that road again. TUNE THE ENGINE The discovery algorithm is yours. Open the tuner and set how much pull collaborators, producers, songwriters, label-mates, similar artists, and influences each have on the road ahead. The Influences fader traces a song's lineage both ways: the originals it sampled and remixed, and everything built on it since. Better connections find better music. AMPLITUDE Party mode. Pick a source, shape the energy curve, and Resonator builds the night — openers, the build, the peak, the cooldown — from energy analysis of the music itself. One glance shows how far to peak. MADE BY RESONATOR For the artists you visit, Resonator cuts its own records: What Resonates — their songs your listening says you'll love — and Overtones, the collaborators one step out. THE RECORD ROOM Your library is shelves, not lists: Heavy Rotation, Recently Played — your whole listening timeline, kept and yours to erase — recent resonances, and records you might like next. A record room, not a database. CARPLAY Album-forward in the car: play the record, start resonating, browse the shelves — same engine, bigger road. WHAT YOU NEED • An active Apple Music subscription (without one, playback is limited to previews) • A Google Cast speaker or display on the same Wi-Fi network — or play right on the phone, AirPlay included Resonator is an independent app. It is not affiliated with, endorsed by, or sponsored by Apple Inc. or Google LLC. Apple Music is a trademark of Apple Inc. Google Cast is a trademark of Google LLC.
Screenshots
Verdict
The clearest difference is in-app purchases: Resonator Player at none against JustChords's 7. JustChords's advantage is ratings volume (349 vs 1) and device support (4 vs 1). On price, rating, update cadence and ads 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. JustChords sells 7 one-off in-app purchases. Resonator Player asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for JustChords against 5.0 for Resonator Player. That said, the two scores are not equally well evidenced: JustChords has 349 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | JustChords | Resonator Player |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (349 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 95.2% of reviews | — |
| Number of ratings | 349 — better | 1 |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone |
| Requires iOS | 17.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 66 MB | 20 MB |
| Age rating | 4+ | 12+ |
| Developer | get started s. r. o. | Anthony Jacobs |
Bugs and requests
JustChords
Reported bugs
11 issues- App crashes when importing songs from online sources
- Pinch zoom feature stopped working
- Songs disappearing from library
- App unable to load songs from library in certain conditions
- Multi-column view not functioning on iPad
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- PDF export inconsistently includes/excludes metadata
- Control+S keyboard shortcut non-functional on iPad and desktop
- Choppy scrolling between songs
- Tagging system filters incorrectly (excludes songs with multiple tags)
- Songs won't open when tapped (reported on iPhone 8 with iOS 16.7.4)
- Sticky notes placement requires manual adjustment
Requested features
8 requests- Apple Pencil direct annotation with eraser capability
- Standard tag filtering logic (show songs with selected tags)
- Bluetooth pedal support for song navigation without touching device
- Web-based editor for songs
- Direct in-app sharing to other users
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- Improved documentation and user manual
- Smoother song-to-song scrolling transitions
- Dark mode option
Resonator Player
Not enough reviews yet to summarise bugs or requests.
In-app purchases
JustChords
- Buy me a coffee$0.99
- Nice Chords!$2.99
- Buy me a pineapple$4.99
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- Rock On!$6.99
- Buy me a book$7.99
- Big Thanks!$17.99
- Legendary Support!$44.99
Resonator Player
No in-app purchases









