Solo - Fretboard Visualization

🇺🇸 United States
Trio Software Ltd  | 
44
ASO score
Text
49/100
Reviews
60/100
Graphic
40/100
Other
0/100
rating
App Rating
4.6
rating
Votes
28.1K
rating
App Age
4y 6m
rating
Last Update
Dec 30, 2025
rating
iAP
$6.49 - 6.49

Compare with Category Top Apps

Metrics
Current App
Category Top Average
Difference
Installs
9.5K
121.9M
-100%
Rating
4.6
4.41
+4%
Number of Ratings (Voted)
19.3K
146.5M
-100%
App Age
4y 6m
7y 8m
-41%
Price
$21
$1
+3 100%
In-app Purchases Price
$6
$67
-91 %
Update Frequency
33d
192d
-83%
Title Length
30
26
+15%
Short Description Length
84
70
+20%
Description Length
3 706
2 888
+28%
Number of Screenshots
1383
1192
+16 %
Has Video?
No
0% has videos
Size
0MB
0MB

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Downloads

Downloads Graph
Downloads icon
Total
9.4K
Last month icon
Last month
138

Text ASO

Title (
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Solo - Fretboard Visualization
Short Description (
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)
Visualize the guitar fretboard, master scales & play through changes like a pro!
Description (
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Solo is the ultimate practice App for mastering fretboard visualization, designed by world renowned guitarists Tom Quayle and David Beebee. Four powerful fretboard trainers allow you to work intuitively on each aspect of the visualization process; learning note names, memorising interval shapes, outlining chord changes, and practicing scales. Solo asks you to find intervallic functions against one root note, chord symbol or scale at a time, listens to the notes you play, and doesn’t move on until you’ve correctly found each note by its intervallic function in the specified order. Practice with Solo and finally learn your note names, master interval shapes, confidently play through chord changes and break out of scale boxes with intervallic functions. Start transforming your playing and confidence on the fretboard today! NOTE TRAINER The Note Trainer is perfect for beginner and intermediate players getting to grips with note names on the neck - the foundation of solid fretboard knowledge. ‣ Solo shows you random root notes to find and listens, waiting for you to get it correct. ‣ Slide on the interactive fretboards for helpful diagrams and to study alternative options. Choose from 6 string guitar (standard and 4ths tuning), 7 string guitar, 4 string bass & 5 string bass. ‣ Optional practice suggestions offer challenging ways to limit and test yourself. ‣ Duration based workouts allow you to craft the perfect practice session. INTERVAL TRAINER The Interval Trainer will help players at all levels work on interval shapes with intervallic functions - the key to unlocking true freedom on the fretboard. ‣ Choose any combination of intervallic functions to practice. ‣ Create custom interval groups or choose the intervals for ANY chord type or scale. ‣ The Interval Trainer will randomise your chosen intervals and ask you to find them against either a fixed or random root note. ‣ Slide on the interactive fretboards for helpful diagrams, showing you where all of the interval shapes are across the neck, and to study alternative options. Choose from 6 string guitar (standard and 4ths tuning), 7 string guitar, 4 string bass & 5 string bass. ‣ Duration based workouts allow you to craft the perfect practice session. CHANGES TRAINER In the Changes Trainer you find intervallic functions, using single notes to outline different chord types or sets of chord changes, a key skill for learning to improvise through chord changes. ‣ Practice outlining intervallic functions through over 100 common chord progressions and single chord exercises. ‣ 50 intervallic function levels. Go from simple chord tones to complex melodic structures and scales. ‣ Solo intelligently maps out the correct intervals over each chord and listens for you to play each intervallic function in the specified order. ‣ Powerful workout options provide almost limitless ways to challenge yourself. ‣ Transpose the key of any progression or exercise. ‣ Choose to randomly transpose the progression (or single chord exercise) each time it repeats. ‣ Work on voice leading chord tones through single note lines. SCALE TRAINER The Scale Trainer contains a vast array of scales and powerful workout options, allowing you to finally break out of the box and develop a much deeper understanding of how scales are constructed on the fretboard. ‣ Practice finding scales on the fretboard using intervallic functions. ‣ Over 50+ Scales and modes. ‣ Powerful workout options provide almost limitless ways to challenge yourself. ‣ Melodic sequence options let you focus on starting from any chord tone within the scale. ‣ Duration based workouts allow you to craft the perfect practice session.}
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Rating & Reviews

Reviews Overview
🧐 Coming Soon…
Rating
4.6
28 100 voters

Some Latest Reviews

Julio
27 Dec, 2025
5
Updated to V2.0 and right now, I can't use the "Changes" function. The "Start changes workout" appears always disabled.
Nikos Vrettakis
24 Dec, 2025
5
Some 4 chord tones levels missing , 3rd to 3rd , 5th to 5h 8th to 7th. The app have only from Root 3 5 7 Root.
Pablo Jozami
17 Dec, 2025
5
Esta es mi opinión sincera y objetiva sobre la aplicación (algo subjetivo e interesante también). Comencé por el ejercico de 5 minutos tocando notas sueltas y me lleve una gran sorpresa. Por momentos la aplicación comenzó a generar respuestas basadas en lo que escuchaba para reforzar esos puntos pero de una manera silenciosa y efectiva, muy sensible a las respuestas (silencios, fallos, formas imperfectas de tocar, etc) para auto configurarse (y esto ya es subjetivo pero comprobable) y ser mejor.
Julio
14 Dec, 2025
5
Updated to V2.0 and right now, I can't use the "Changes" function. The "Start changes workout" appears always disabled.
Dominick Bacon
10 Dec, 2025
5
Best practice tool I've found that helps you break out of "scale shapes" and teaches you to play the RIGHT notes. And I've been looking for a long time! You still need to practice (a lot), learn how to use the app effectively, and you still need that elusive creativity, but Solo is a game changer.
Young Lochinvar
03 Dec, 2025
5
The long awaited 2.0 update. Thanks! Very cool app!
AC
26 Nov, 2025
5
Actualizo mi reseña original tras la nueva version SOLO V.2 (hasta ahora solo disponible en IOS): puedo decir sin dudas que mejora TODO lo que ya parecía inmejorable en la versión original (le di 5 estrellas entonces). La idea original de la app, los nuevos modos de entrenamiento, las sugerencias, los tutoriales, el interfaz. Todo orientado a conseguir un control real del diapasón. Ahora sí creo que es difícilmente mejorable. Mi enhorabuena!
Jens Mueller
19 Nov, 2025
5
Excellent trainer and it keeps getting better and better. All I needed to gain more control over the fretboard and much more than I had expected.
Iván Mandujano Ballas
19 Nov, 2025
1
Excellent! now mi app is not working 2.0 👌 What i can do?

Other

Additional Information
Rating:
4.63
Voted: 28.1K
Google Play Link:
Price: 19.22 $
Website:
Email:
Privacy Policy:
Categories: Music & Audio
Size: -
iAP: 6.49 - 6.49 $
Installs: 9.44K
App Age: 4 years 6 months
Release Date: Jun 28, 2021
Last Update: Dec 30, 2025
Version: 2.0.9
Version history
2.0.9
Dec 30, 2025
Bug fixes:<br>• Fixed Scale Trainer showing incorrect content when switching between trainers<br>• Fixed duration practice timing — workouts now run for the full selected duration<br>• Improved support by automatically including device info in feedback emails
2.0.8
Dec 10, 2025
Version history