Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

True Tone Screenshots

iPad

iPhone

About True Tone

True Tone plays any tone defined by a temperament. True Tone is useful in tuning instruments, or improving intonation of your instrument.

The operation is simple, just swipe your finger to select a tone and press the fork symbol and instantly you will hear a continuous tone sounding.

Feature highlights
• Range of tone approximately A0 - C8
• High accuracy of tone synthesis
• Common waveforms other than sine waves available
• Several display patterns for accidentals
• Transposition possible for instruments with natural key other than C
• Adjustable reference tone A4 in the range 400 - 480 Hz
• Preset temperament collection available

What's New in the Latest Version 1.1.3

Last updated on Feb 11, 2023

Old Versions

• drag and drop import of temperaments
• bug fixes

Version History

1.1.3

Feb 11, 2023

• drag and drop import of temperaments
• bug fixes

1.1.2

Oct 24, 2022

• fixed swiping though upper range C7 - B8
• fixed direction indicators for low and high octaves
• direction indicators now display when long pressing
• tiny adjustments of colors for consistency and better readability
• fixed upper limit 480 Hz of reference tone in UI

1.1.1

Sep 7, 2022

• minor bug fixes
• minor UI improvements

1.1

Jan 7, 2022

built for iOS 15
bug fixes

1.0.0

Apr 29, 2020

Feedback Report