iGigBook Mobile vs Quartet 4
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iGigBook Mobile
Manage your sheet music collection on your iPhone. Quickly search for songs, view melodies, chords, and lyrics, and transpose chord charts. Easily share set lists and PDFs with band members.
- Song search by title or composer
- View melody, chords, and lyrics
- Transposable chord charts for Jazz standards
- Load PDF books via iTunes, email, or web
- Email set lists with PDF attachments
- Indexes for over 70 fake and real books
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The ultimate pocket sized song reference for Musicians, Music Students and Educators has just got even better with the addition of chord charts that transpose! We've added an index to over 1,300 chord charts of Jazz standards that you can transpose to any key. Register and check for "Jazz Chord Charts - Transpose" in the Book List view. iGigBook Mobile provides indexes for over 70 fake books and real books, giving you the ability to quickly search for songs by title or composer. Load PDF books onto your device using iTunes, email or the web for quick and easy reference. iGigBook Mobile lets you find out which book a song is in, what page it is on and most importantly, you can view the page of the book on your device. Heading to the gig or rehearsal and can't remember what the melody to the tune is? Just use iGigBook Mobile to look up the song and display it with melody, chords and lyrics. Do you need to share your set list and sheet music with your band members? iGigBook Mobile lets you email your set list AND include a PDF attachment of all of the songs in the set list. NOTE: This is not an iPad App, it is designed for the small screen of an iPhone or iPod. * iGigBook Mobile DOES NOT INCLUDE ANY PDF BOOKS, IT ONLY PROVIDES THE INDEXES FOR THE BOOKS.
Quartet 4
Practice and perform jazz standards with high-quality backing tracks. Mute your instrument, change keys, adjust tempo, and loop sections for focused practice. Features animated chord diagrams and royalty-free multitrack exports for further creative use.
- Live jazz backing tracks
- Mute your instrument
- Change key and tempo
- Looping for practice
- Animated chord diagrams
- Multitrack export
- Playlist creation
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Practice and perform jazz standards on another level with Quartet. And with a host of brand-new features, the top-selling jazz play along apps just got even better. No subscriptions. No in-app purchases. Volume 4 includes another 100 stunning jazz standards recorded exclusively by 6 of the world’s best jazz musicians. All ‘live’ studio recordings with intros, endings and top line solos. Whether you play jazz piano, guitar, saxophone, trumpet, bass, drums…simply mute your instrument from the Quartet for the ultimate jazz play along. And for jazz singers too, each edition of Quartet is an unrivalled collection of jazz backing tracks powerful enough to gig with. Change key on the fly. Speed up or slow down the audio seamlessly. Loop sections and slow them right down for practice. Select the number of repeats. Choose from preset mixes or create your own custom mix using the new onboard mixer. Arrange each song exactly the way you want it with the new automated ‘Arranger’ feature. Add a touch of reverb and you’re good to go. Improve your skills with full screen animated chord diagrams for Piano, Guitar and Ukulele. Search the entire Quartet song library (700 songs) by composer, style, BPM, associated artist and more. Build and share multi-app playlists and easily export PDF chord charts for every song. Export your stereo mix or export the multitrack if you want to develop the high quality separated parts in GarageBand or whatever DAW you use. Either way, all recordings are offered to you royalty-free giving you endless creative possibilities. The 100 jazz standards in Quartet Volume 4 include improvisations in the style of… ‘Affirmation’, ‘Água de Beber’, ‘Alexander’s Ragtime Band’, ‘Blue in Green’, ‘Born to Be Blue’, ‘Cinema Paradiso’, ‘Chicken’, ‘Ev’ry Time We Say Goodbye’, ‘Feel Like Makin’ Love’, ‘Got a Match?’, ‘Here There and Everywhere’, ‘I Get a Kick out of You’, ‘It Ain’t Necessarily So’, ‘La Fiesta’, ‘Manhattan’, ‘Nothing Personal’, ‘Poinciana’, ‘Save Your Love for Me’, ‘Social Call’, ‘Surrey with the Fringe on Top’… and 80 more. Install Quartet on all of your iOS devices plus your Mac devices (M series only) at no extra cost. Ready to take your jazz standards to another level? Hear more at www.quartetapp.com Featured artists on Quartet Volume 4 Guitar Nigel Price Nigel has recorded with many big-name artists, performing on over 50 albums, most recently Van Morrison’s studio album ‘Keep Me Singing’. A former member of The James Taylor Quartet, Nigel was voted the UK’s ‘Best Guitarist’ in the 2016 British Jazz Awards and is “…probably the most dynamic and gifted guitarist on the British jazz scene today” [All About Jazz]. Trumpet Steve Fishwick Steve has performed and recorded with many leading European jazz musicians including Sir John Dankworth, George Mraz, Dado Moroni, Claus Raibler, Tony Lakatos and the WDR big band. In the USA, Steve has performed and recorded with Anita O' Day, Ron Carter, Jimmy Heath, Peter Erskine, Eric Harland, Scott Hamilton, Herb Geller Saxophones and Flutes Andy Panayi Credits include Shirley Bassey, Jessye Norman, Paul McCartney, Seth MacFarlane, Elaine Paige, Elvis Costello, Georgie Fame, Helen Shapiro, Madeline Bell, Patty Austin, Freddie Hubbard, Wynton Marsalis, Billy Cobham Piano Graham Harvey Credits include Incognito (MD), Stacey Kent, George Benson, M People, Hamish Stuart, The Jones Girls, Philip Bailey, Chaka Khan, The BBC Big Band, Madeline Bell, Jocelyn Brown, Mica Paris, Sir Cliff Richard Bass Geoff Gascoyne Credits include Jamie Cullum (MD), Sting, Van Morrison, Bill Bruford, Mari Wilson, Paloma Faith, Georgie Fame, Gloria Estefan, Guy Barker, Charlie Watts, Benny Golson, Jacqui Dankworth, John Martyn, Eartha Kitt Drums Sebastiaan de Krom Credits include Herbie Hancock, John Scofield, Phil Woods, Dave Holland, Jamie Cullum, Guy Barker, Wynton Marsalis
Screenshots
Verdict
The clearest difference is review sentiment: Quartet 4 at 89% against iGigBook Mobile's 35%. Quartet 4 also leads on rating (4.7 vs 4.2). iGigBook Mobile's advantage is price ($9.99 vs $16.99) and chart position (#197 vs unranked). On update cadence, ads, in-app purchases and device support 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
iGigBook Mobile costs $9.99 and Quartet 4 $16.99 up front. iGigBook Mobile sells 1 one-off in-app purchase and Quartet 4 sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Quartet 4 holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 68 and 20 respectively. Written reviews point the same way: 35% of iGigBook Mobile's written reviews are positive against 89% of Quartet 4's.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.
| Parameter | iGigBook Mobile | Quartet 4 |
|---|---|---|
| Price | $9.99 — better | $16.99 |
| Rating | 4.2 (68 ratings) | 4.7 (20 ratings) — better |
| Positive reviews | 34.9% of reviews | 89.5% of reviews — better |
| Number of ratings | 68 — better | 20 |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | #197 — better | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 14 MB | 528 MB |
| Age rating | 4+ | 4+ |
| Developer | Black & White Software LLC | UK Music Apps Ltd |
Customer experience
iGigBook Mobile
Quartet 4
User reviews
iGigBook Mobile
From 68 App Store ratingsWhat we love
- 👍 Organizes PDF files well
- 👍 Great for gigging musicians
- 👍 Useful for practice
- 👍 Transposable chord charts are great
- 👍 Indexes PDF fake books
Room to improve
- 😞 No music content included
- 😞 Misleading app description
- 😞 Waste of money
- 😞 Difficult to set up
- 😞 Not intuitive
Quartet 4
From 20 App Store ratingsWhat we love
- 👍 Superb interface
- 🎨 Accurately labels tracks by style
- 🎶 Live instrument recordings
- 🔀 Ability to separate and send tracks
- 🎨 High-quality presentation and performance
Bugs and requests
iGigBook Mobile
Reported bugs
9 issues- App doesn't work
- PDFs are grayed out
- Indexing doesn't always work
- Cannot access second page of a tune
- Song search has issues with multiple finds
Show 4 moreShow fewer
- Registration website won't load
- Conflicts with other apps (iFakeBooks)
- Cannot tap page turn when zoomed in
- Jazz1200 not working as advertised
Requested features
9 requests- Search function in unindexed scores
- Dark mode option
- Two-page view
- Support for other musical styles
- Ability to rotate pages
Show 4 moreShow fewer
- Easier way to import lyrics
- Direct download links for PDFs
- Option to change book names
- Landscape mode support
Quartet 4
Requested features
1 request- More guitar in rhythm section for future volumes
In-app purchases
iGigBook Mobile
- Transposable Jazz Chord ChartsFree
Quartet 4
- Upgrade song$0.99
- Buy 10 tokens$8.99
- Buy 20 tokens$14.99
Show 2 moreShow fewer
- Buy 50 tokens$22.99
- Upgrade all songs$39.99
Questions
Is iGigBook Mobile free?
Is Quartet 4 free?
Which has better reviews, iGigBook Mobile or Quartet 4?
Do iGigBook Mobile or Quartet 4 have ads?
Which is updated more often, iGigBook Mobile or Quartet 4?
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