Synesthesia vs AudioTheory Guitars
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synesthesia
Experience music through a spectrum of colors, mimicking the sensory phenomenon of synesthesia. Use it as a dynamic mood light, a calming night light, or to visualize the pitches of songs and instruments.
- Music visualization
- Mood lighting
- Night light functionality
- Pitch to color mapping
- Microphone access for real-time audio
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Synesthesia makes listening to music a colorful experience and is a wonderful mood light and soft night light when you want to calm down. Do you want to see colors when playing certain tones like people with synesthesia / chromestesia do? The app "Synesthesia - See the music in colors" enables you to experience music in color as well. Whether you use it to train you perfect pitch, to help you remember melodies or just for entertainment as a light organ while listening to your favorite songs - Synesthesia helps you to see the current pitch in colors. To experience the colors simply allow the app to access the microphone on the first start and then play your instrument or a song, sing, ... or just enjoy many color changing patterns even without music as a mood light or night light. Please note: People with synesthesia may experiences different colors for the same pitch. The app therefore uses it's own color scale (each musical note C displays a red color for example). Some of our users use the app as an replacement for their old light organs ... so that should work very well ;-) If you like music apps be sure to check out our other apps as well -> Piano Champion, Guitar Champion, Drum Champion, Voice Back .... and many more to come
AudioTheory Guitars
This app serves as a comprehensive reference for guitarists, offering interactive chord and fretboard diagrams. It simplifies music theory by allowing seamless transcription between piano and guitar, with customizable tuning and note exclusion features.
- Interactive chord and fretboard diagrams
- Piano to guitar transcription
- Customizable tuning and capo settings
- Chord sheet playback
- Note exclusion for playing in key
- Left-handed mode
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AudioTheory Guitars is the ultimate reference tool for guitar notes and chords. Featuring a built-in keyboard, each note reacts to your input across the customisable chord and fretboard diagrams. For anyone who's ever wished music theory was that little bit more straightforward – this is the software you need. Features: –Seamlessly transcribe between piano and guitar using a straight-forward colour coding system and notation highlighting. Play a note on the keyboard, or directly from the chord and fretboard diagrams to see where it is across all formats. –Set your tuning and capo. Everything else adjusts accordingly – no need for a chord transposition chart. –Choose your chords with open, power, barre, sus2 and dim7 chord sheets with fullscreen diagrams and playback options. –Exclude notes and never play out of key again. Your fretboard diagram now only shows the notes you need and your keyboard doesn't play the ones you don't. –Full customisation. Select the chords you want. Left-handed mode for left-handed players. Set your fretboard size, number of strings, start fret and per-string tuning.
Screenshots
Verdict
The clearest difference is price: Synesthesia at Free against AudioTheory Guitars's $6.99. Synesthesia also leads on update cadence (monthly vs every 3 months) and iOS requirement (8.0 vs 15.0). AudioTheory Guitars's advantage is review sentiment (67% vs 38%). On 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
Synesthesia is free to download; AudioTheory Guitars costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Synesthesia ships an update monthly, AudioTheory Guitars every 3 months. Both last shipped on June 1, 2026.
| Parameter | Synesthesia | AudioTheory Guitars |
|---|---|---|
| Price | Free — better | $6.99 |
| Rating | 2.3 (16 ratings) — better | — |
| Positive reviews | 37.5% of reviews | 66.7% of reviews — better |
| Number of ratings | 16 — better | — |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPad, Mac |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 31 MB | 318 MB |
| Age rating | 4+ | 4+ |
| Developer | Christian Auzinger | Fraser Mackenzie |
Customer experience
Synesthesia
AudioTheory Guitars
In-app purchases
Synesthesia
No in-app purchases
AudioTheory Guitars
No in-app purchases
Questions
Is Synesthesia free?
Is AudioTheory Guitars free?
Do Synesthesia or AudioTheory Guitars have ads?
Which is updated more often, Synesthesia or AudioTheory Guitars?
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