Comparison

Guitar Note Atlas vs Spark

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Guitar Note Atlas

This app provides an interactive fretboard map to help guitarists of all levels visualize note locations and understand musical scales. It offers customizable views, scale modes, and practice aids for both right and left-handed players.

Highlights
  • Interactive fretboard map
  • Scale visualization (Major, Melodic Minor, etc.)
  • Customizable note selection
  • Multiple scale positions
  • Bass guitar mode
  • Left-hand mode
  • Scale degree numbers
Features
Read full description

Guitar Note Atlas is an interactive map of the guitar designed to help players of all levels better visualize the layout of the notes on the fretboard. It serves as a perfect practice aid for learning the geography of the guitar as well as understanding the modes of the Major Scale, Melodic Minor, Harmonic Minor, and Harmonic Major. Flexibility and interaction allows for ultimate creativity. You can select any combination of notes you want to see right on the main screen, or pick a scale from the drop-down menu. Switch quickly between all 7 positions or tap the diagram to zoom out and view the entire fretboard at once. (The iPad version shows both views simultaneously.) Features: - Bass Guitar Mode - Left Hand Mode - Change keys - Native iPad version (buy once and use on all devices) - Flip diagram upside down - Show/Hide scale degree numbers -Show/Hide colored-in anchor frets Included in the app is a tutorial to get you started (both right- and left-handed versions).

About

Spark

This intelligent amp and app combination creates a virtual band that learns your playing style to generate accompanying bass and drums. Access millions of songs with auto-displayed chords, over 10,000 tones, and voice command functionality. It's designed to enhance your practice and performance experience.

Highlights
  • Auto chord display for millions of songs
  • Smart Jam with AI-generated bass and drums
  • Voice command control
  • BIAS tone engine with 10,000+ presets
  • Tempo control and looping for practice
  • Realistic virtual tube amps and effects
Features
Read full description

The smart amp and app that jam along with you using intelligent technology. Play and practice with millions of songs and access over 10,000 tones powered by our award-winning BIAS tone engine. *Auto Chords* Automatically display chords for millions of songs. Choose any song, and Spark will auto display its chords in real-time as you play. Easy controls let you slow down the song’s tempo or loop a difficult section as you master playing it. *Smart Jam* The Spark amp and app work together to learn your style and feel, and then generate authentic bass and drums to accompany you. It’s a smart virtual band that goes wherever you go! *Voice Command* The Spark app responds to your voice commands. Tell it to stream a rock song or a blues backing track, or ask for a virtual band to follow your playing. *Tone Engine* Whether you play pristine melodies, crunchy chords or soaring leads, Spark gives you a full amp modeling and multi-effects engine, powered by Positive Grid’s state-of-the-art BIAS with the most realistic virtual tube amps and effects on the planet. *Requires Spark Amp* *10,000+ Tones* The Spark app provides over 10,000 killer guitar and bass amp -and-FX presets from famous guitarists, professional session players, expert studio engineers and hit-making producers from around the world. If you have any questions or feedback, contact us via https://help.positivegrid.com/hc/en-us/requests/new

Screenshots

Guitar Note Atlas4 screens
Spark4 screens

Verdict

The call

The clearest difference is price: Spark at Free against Guitar Note Atlas's $4.99. Spark also leads on ratings volume (25K vs 36) and update cadence (every 2 weeks vs every 2 months). Guitar Note Atlas's advantage is in-app purchases (none vs 1) and review sentiment (89% vs 55%). On rating, ads 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

CostPrice · In-app purchases · Ads · Monetization

Spark is free to download; Guitar Note Atlas costs $4.99 up front. Spark sells 1 one-off in-app purchase. Guitar Note Atlas asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Guitar Note Atlas against 4.8 for Spark. That said, the two scores are not equally well evidenced: Spark has 25K ratings behind it against 36, so its average is the more settled of the two. Written reviews are what separate them: 89% of Guitar Note Atlas's written reviews are positive against 55% of Spark's.

UpkeepUpdate frequency

Guitar Note Atlas ships an update every 2 months, Spark every 2 weeks. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

Scorecard7 real differences · 3 level
Guitar Note Atlas versus Spark: the parameters behind the verdict, then further details
ParameterGuitar Note AtlasSpark
Price$4.99Free — better
Rating4.8 (36 ratings)4.8 (25K ratings) — better
Positive reviews88.9% of reviews — better55.0% of reviews
Number of ratings3625K — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size45 MB562 MB
Age rating4+17+
DeveloperBlack Rabbits Apps LLCPositive Grid Inc

Customer experience

Guitar Note Atlas

All ratings36 ratings
Positive94.4%
Neutral2.8%
Negative2.8%
Written reviews18 reviews
Positive88.9%
Neutral5.6%
Negative5.6%

Spark

All ratings24,887 ratings
Positive97.4%
Neutral1.3%
Negative1.4%
Written reviews667 reviews
Positive55.0%
Neutral12.9%
Negative32.1%

Bugs and requests

Guitar Note Atlas

Not enough reviews yet to summarise bugs or requests.

Spark

Reported bugs

5 issues
  • App frequently disconnects from amp
  • Tone selection issues and inconsistencies
  • Sudden loud noises or feedback from amp
  • Firmware update process is cumbersome
  • Spotify integration not working as advertised

Requested features

6 requests
  • Add looping functionality
  • Improve auto-chord detection and playback
  • Allow more customization of signal chain and effects
  • Integrate with more music services beyond Spotify
  • Add EQ controls for Bluetooth speaker mode
Show 1 more
  • Sync saved tones across devices

In-app purchases

None

Guitar Note Atlas

No in-app purchases

1 purchases

Spark

One-time1
  • Experience Jimi Hendrix™$19.99

Questions

Is Guitar Note Atlas free?
Guitar Note Atlas costs $4.99, with no in-app purchases.
Is Spark free?
Spark is free to download, with in-app purchases available.
Which has better reviews, Guitar Note Atlas or Spark?
Spark is rated higher. Guitar Note Atlas averages 4.8 out of 5 from 36 ratings, while Spark averages 4.8 from 25K ratings.
Do Guitar Note Atlas or Spark have ads?
Neither Guitar Note Atlas nor Spark shows ads.
Which is updated more often, Guitar Note Atlas or Spark?
Guitar Note Atlas ships an update every 2 months, and Spark every 2 weeks. Most recently, Guitar Note Atlas was updated on November 1, 2026 and Spark on November 7, 2026.

Other comparisons