Peterson iStroboSoft

6.0easy start · #29of 32
in Musical Tuner Apps

Free to practise onno
Well documentedyes
Runs where you workno

Runs on iOS.

Peterson iStroboSoft is ranked #29 of 32 in musical tuner apps on The Geeks Club. It runs on iOS. There is no free plan.

Peterson iStroboSoft plans and pricing

All plans

iStroboSoft $9.99 once iOS mobile app · optional in-app upgrades petersontuners.com · 11 Oct 2026

Compared on musical tuner apps

Free plan: No
Strobe display: Yes
Alternate tunings: Yes
Custom reference pitch: Yes
Available platforms: ios

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The record

Purpose: iStroboSoft is a mobile strobe tuner for tuning instruments with 0.1-cent accuracy.
Inputs: Users can tune electric instruments by plugging in or tune acoustic instruments with the device’s built-in microphone.
Display and calibration: The app supports automatic or manual note selection, A=440 default pitch calibration, and cents, hertz, or MIDI note displays.
Transposition: Drop/Capo mode transposes notes up or down by as much as one octave.
Sweetened tunings: The product page lists 76 sweetened tunings as an in-app purchase and describes presets for instruments including guitar, bass, steel guitar, orchestral instruments, and piano.
Optional analysis tools: iOS in-app upgrades include tuning scopes, harmonic tuning, and extended frequency mode; the page also describes a multicolor spectrogram upgrade.
Frequency range: The listed standard frequency response is 20 Hz–5000 Hz; optional extended frequency modes reach up to 22.05 kHz.
Intended users: The maker describes it for musicians who want precise tuning while on the move or before recording, and lists presets for many instrument families.
Integration compatibility: The specifications say iStroboSoft is not Peterson Connect compatible.
Preset limit: The app does not support user presets; its FAQ says presets are configured at the factory.
Other limits: The specifications say it has no metronome, tone generator, stretch tuning tables, or tap tuning capability.
Audio accessory support: The FAQ says the Pitch Grabber requires an audio-input-capable TRRS adapter; a headphone adapter alone will not work.
Support: The product page links to a user guide and offers a support ticket for personalized product support.
Company and founding: Peterson identifies the maker as Peterson Electro-Musical Products, Inc.; its company history says it was founded in Chicago in 1948.

Where it ranks on The Geeks Club

Best Musical Tuner Apps in 2026#29 of 32

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Sources

petersontuners.com/products/istrobosoft/· checked 11 Oct 2026
petersontuners.com/media/pdf/StroboSoft_2.0_English.pdf· checked 11 Oct 2026