OtoTheory
iPhone only
9.6No. 1 of 27
in Chord Finder Software
in Chord Finder Software
- Recognised40% of the score96
- Phone app26% of the score100
- Documented20% of the score93
- Free plan14% of the score100
- Free plan
- Yes
- Runs on
- iPhone, Web
Summary
OtoTheory is ranked #1 of 27 in chord finder software on Samsung Mobile US Press. It runs on iOS, Web. There is a free plan. A free trial is offered.
OtoTheory plans and pricing
All plansFree Free iOS app · 3 local sketch saves · MIDI/audio export unavailable ototheory.com · 29 Sept 2026
Lifetime $99.99 once One-time purchase iOS only · all Pro features forever · unlimited MIDI/audio export, saves, and iCloud sync ototheory.com · 29 Sept 2026
Pro Not published Monthly or annually; annual plan is $49.99/year iOS only · 7-day free trial · unlimited MIDI/audio export · unlimited saves and iCloud sync · Pro-exclusive grooves ototheory.com · 29 Sept 2026
Compared on chord finder software
- Free plan
- Yesototheory.com
- Paid from
- $5.99/moototheory.com
- Reverse chord lookup
- Yesototheory.com
- Progression generator
- Yesototheory.com
- Voicing explorer
- Yesototheory.com
- Supported instruments
- guitar, bass, keyboardototheory.com
- Chord chart export
- Yesototheory.com
- Mobile apps
- iosototheory.com
- Chord audio playback
- Yesototheory.com
Facts
- Product
- OtoTheory is a chord progression builder and music theory companion for guitar, bass, keyboard players, and DAW users.ototheory.com · 29 Sept 2026
- Song analysis
- The iOS app detects chords, key, and song sections from imported audio or a guitar or piano recording on-device.ototheory.com · 29 Sept 2026
- AI chord import
- Users can paste chord progressions from ChatGPT, Claude, or Gemini for Roman numeral analysis and playback with grooves.ototheory.com · 29 Sept 2026
- Grooves and presets
- OtoTheory lists 19 groove patterns and more than 50 chord progression presets.ototheory.com · 29 Sept 2026
- AI suggestions
- OtoTheory AI suggests chords using three layers of musical understanding described as feel, theory, and emotion.ototheory.com · 29 Sept 2026
- MIDI export
- Pro exports progressions in Groove, Groove + Theory, or Chords Only modes, with BPM, section markers, and chord names.ototheory.com · 29 Sept 2026
- DAW compatibility
- The maker says MIDI exports can be used with Logic Pro, Cubase, Ableton, and other DAWs.ototheory.com · 29 Sept 2026
- Web limits
- The web version offers a subset of iOS features, with limited grooves and presets; Pro is iOS-only.ototheory.com · 29 Sept 2026
- Integrations
- The iOS app offers optional iCloud sync for Pro, and exported MIDI can be transferred to a Mac with AirDrop.ototheory.com · 29 Sept 2026
- Privacy and security
- The privacy policy says communications use HTTPS, iOS cloud sync uses Apple CloudKit’s encrypted infrastructure, and OtoTheory does not sell personal data.ototheory.com · 29 Sept 2026
- Data handling
- Sketches are stored locally on the device or in the user’s iCloud account for Pro, while web sketches are stored in browser localStorage.ototheory.com · 29 Sept 2026
- Support
- The support page lists [email protected] and says it typically responds within two business days, excluding weekends and holidays.ototheory.com · 29 Sept 2026
- Intended users
- The maker describes OtoTheory as intended for beginners, songwriters and composers, self-learners, and guitar, bass, and keyboard players.ototheory.com · 29 Sept 2026
Company
- Headquarters
- Tokyo, Japanototheory.com · 23 Sept 2026
Best OtoTheory alternatives
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Where it ranks on Samsung Mobile US Press
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Sources
- ototheory.com· checked 29 Sept 2026
- ototheory.com/get-chords· checked 29 Sept 2026
- ototheory.com/about· checked 29 Sept 2026
- ototheory.com/pricing· checked 29 Sept 2026
- ototheory.com/privacy· checked 29 Sept 2026
- ototheory.com/support· checked 29 Sept 2026