String Groove vs Note Navigator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
String Groove
Learn to improvise on string instruments with this app. It offers written notation, listening examples, and play-along exercises across various musical styles. Designed for students, teachers, and professionals, it makes music theory practical and fun.
- Improvisation instruction for string players
- Multiple musical styles (Jazz, Rock, Blues, etc.)
- Support for Treble, Alto, and Bass clefs
- Play-along exercises
- Spoken instruction and listening examples
- Practical music theory integration
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String Groove ® teaches improvisation to string players through written notation, listening examples, play along exercises and spoken instruction to students. Musical styles: Jazz, Rock, Fiddle, Blues, Latin, Middle Eastern and more. Notation: Treble, Alto (viola) and Bass clef and works for all members of the string family. String Groove can work for other C instruments outside of the string family such as flute and bassoon. Audience: String students, teachers and professionals who want to learn how to improvise and teach improvisation. Recommended Level: Ability to play: Violin - Most notes in the first position Viola – Some notes in the 3rd position Cello - Some notes in the 5th position Other - Students not familiar with flats (or upper registers for viola and cello) can still work with String Groove if they limit themselves to familiar notes. String Groove is designed for the traditional string student and some music reading music is expected, however, it is possible to use String Groove entirely by ear. The Advanced sections consist of technical etudes, rhythmic and bowing exercises in the styles associated with each chapter. Throughout String Groove, Mr. Groove (or Mr. G) for short offers helpful ideas for improvising when selected. Music Theory is utilized in a practical and fun way. The basic sections introduce key signatures, chords and intervals. The advanced sections introduce jazz theory with the understanding that the user comprehends basic music theory. String Groove is ideal for music teachers who would like to teach improvisation to String Students. The App is an extension of the book and CD “String Groove, Ideas for Improvising” by Edgar Gabriel and is the result of his experience teaching improvisation workshops, courses and studio lessons. Compatible with iPad.
Note Navigator
This music education app helps viola students learn note locations on the fingerboard through a gamified flashcard system. It offers nearly 300 levels across four difficulty tiers, introducing increasingly complex musical concepts.
- Gamified note learning
- Viola fingerboard association
- Nearly 300 levels
- Four difficulty tiers
- Introduces accidentals
- Treble clef support
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“Note Navigator” is a music app designed to help viola students associate written music notes with their location on the viola fingerboard. It gamifies the standard music flashcard drill into a fun video app, guiding students through almost 300 levels to master the location of each note on their instrument. Apprentice - 19 levels •Begins with just finger names on a fingerboard with tapes to associate note with finger/string locations. • Quickly moves to note names without accidentals. Artisan - 42 levels •Introduces naturals, sharps and flats. •Simple enharmonic ideas. Adept - 36 levels •Double sharps and flats are introduced. •"Enharmonic Insanity" levels bring serious challenge. Aficionado - 100 levels •Introduces 3rd position fingerings With simple accidentals (sharps and flats). •With complex accidentals (Double sharps and flats) “Enharmonic Insanity” levels that challenge even the professional! Treble Clef - 86 levels •We have needed this for so long!
Screenshots
Verdict
The clearest difference is price: String Groove at Free against Note Navigator's $5.00. String Groove also leads on update cadence (every 3 months vs every 8 months) and ratings volume (4 vs 1). Note Navigator's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 14.0). On rating, 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
String Groove is free to download; Note Navigator costs $5.00 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for String Groove against 5.0 for Note Navigator. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
String Groove ships an update every 3 months, Note Navigator every 8 months. The most recent releases landed on June 5, 2026 and June 6, 2026 respectively.
| Parameter | String Groove | Note Navigator |
|---|---|---|
| Price | Free — better | $5.00 |
| Rating | 5.0 (4 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 3 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 204 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | EDGAR GABRIEL | Archetto, LLC |
Customer experience
String Groove
Note Navigator
In-app purchases
String Groove
No in-app purchases
Note Navigator
No in-app purchases









