Solo - Fretboard Visualization

🇺🇸 United States
Trio Software LTD  | 
69
ASO score
Text
88/100
Reviews
50/100
Graphic
60/100
Other
0/100
rating
App Rating
4.8
rating
Votes
1.54K
rating
App Age
5y 9m
rating
Last Update
Apr 22, 2025
rating
iAP
$6.99 - 6.99

Compare with Category Top Apps

Metrics
Current App
Category Top Average
Difference
Rating
4.81
4.56
+5%
Number of Ratings (Voted)
1.5K
578.6K
-100%
App Age
5y 9m
8y 0m
-28%
Price
$15
$0
In-app Purchases Price
$6
$41
-85 %
Update Frequency
234d
32d
+641%
Title Length
30
26
+15%
Subtitle Length
24
27
-11%
Description Length
3 698
2 766
+34%
Number of Screenshots
2340
1277
+83 %
Size
270MB
223MB
+21 %

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Text ASO

Title (
Characters: 30 of 30
)
Solo - Fretboard Visualization
Subtitle (
Characters: 24 of 30
)
Guitar Fretboard Trainer
Description (
Characters: 3698 of 4000
)
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
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Rating
4.8
1 540 voters

Some Latest Reviews

Simi1984
19 Nov, 2025
4
4 Stars, because I have one suggestion: it would be very helpful, when you have already a top niveau on the guitar, if the App could show you how many notes you have played in one session! So one could see his/her progress!
LV9000
31 Oct, 2025
5
This is a wonderful app to train the intervalic functions and for beginners learning the notes and relations on the fretboard
Hsnclk1985
19 Oct, 2025
5
I rarely write reviews, but this app deserves it. As someone who is trying to seriously learn music theory on guitar, "Solo" has been a revelation. It might not be a dedicated music theory app, but it's the perfect complementary tool. In my opinion, it breaks away from rigid learning methods and encourages creativity. Instead of just teaching patterns by rote, it helps unlock your ability to improvise. It helps you connect the dots in a way that books or videos can't, and my confidence on the neck has grown immensely. Highly recommended!
doleshwar149
05 Oct, 2025
5
I still use this till date to get back to my basics and the best 15 min of the day for me.
Sickbar
04 Oct, 2025
5
GOT TO SAY that the fact that I know in a second where and what I’m doing on which notes feels incredible, and it’s NOT TRIVIAL AT ALL. I recall a few months ago when I was frustrated, and I didn’t know how to memorize the fretboard, let alone understand why triads appear the way they do or how to form one on the fly. The only thing that kept me going was the fact that obviously others know it, and that I’m not an idiot, but I couldn’t figure out how to train myself. SOLO totally paid out for that. Add to that the real power of solo understanding intervals, and WOW, I think this was the single most powerful and breakthrough improvement I had. One thing I hope they add is statistics to see how fast you find whatever notes the app asks you to. THat would help visualize the improvement.
Nowmetalwen
21 Aug, 2025
2
Compré la app para estudiar guitarra eléctrica pero no funciona como esperaba, no cumple con mis necesidades de aprendizaje ya que cuando revise el apartado de acordes no es para nada preciso al tomar las notas del micrófono, a que me refiero? Me refiero a que deja pasar acordes erróneos como verdaderos… ósea muchos falsos positivos y esto no aporta mucho. Incluso ahorita estaba hablando y me tomó como falso positivos los acordes, ni siquiera tengo que hacer el acorde completo (solo con la tónica o dos notas lo toma como correcto) y esto lo que hace es perjudicar la ejecución del instrumento ya que no detecta de manera correcta los acordes e intervalos. ´Por otra parte se esperaría también que estuviera por lo menos en español y no es así, la verdad quedé decepcionado.
adub34
11 Jul, 2025
5
Incredible app! My knowledge and improvisational skills have soared! Thank you!
Federico Rizzo
07 Jun, 2025
1
App cannot be opened if your Mac is configured with permissive security and forces you to change your profile. I basically threw my money down the toilet purchasing this.
Nico Pachano
21 Apr, 2025
5
I have been studying Tom Quayle for a year and three months now. Anything that comes from him is guaranteed to make you move forward with your playing. The Sólo app is a great tool for fretboard visualization and for acquiring ideas for improvisation. I like to work with the jazz standards and intricate scale sequences. It’s a great tool for me to get ideas and feel more comfortable when going through the changes of the tunes. The combination between mindful, consistent practice and the proper material is very effective. Tom’s is the proper material. You just have to practice.

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Additional Information
Rating:
4.82
Voted: 1.54K
App Store Link:
Price: 14.99 $
Website:
Email: -
Privacy Policy:
Categories: Music, Education
Size: 269MB
iAP: 6.99 - 6.99 $
App Age: 5 years 9 months
Release Date: Mar 10, 2020
Last Update: Apr 22, 2025
Version: 2.2.2
Version history
2.2.2
Apr 22, 2025
- fixed an issue where outside links weren't working.
2.2.1
Jan 28, 2025
- Fix available scale options in Custom Progressions
Version history