# True Strings — Any string perfectly tuned

> Any string perfectly tuned (iPhone/iPad app by Ulf Akerstedt-Inoue.)

- Source: https://appshunter.io/ios/app/true-strings/id1344047199 (this page in markdown: same URL + `.md`)
- Developer: [Ulf Akerstedt-Inoue](https://appshunter.io/developer/959565661)
- Category: Music, Utilities
- Price: $0.99
- Age rating: 4+
- Requires: iOS 15.0 · 23 MB
- Languages: American English, Japanese, Chinese (Simplified, China)
- Released: 2020-04-28
- Data updated: 2026-07-04
- User reviews in markdown: https://appshunter.io/ios/app/true-strings/id1344047199/reviews.md

## What is True Strings?

True Strings is a tool for fast and accurate tuning of any string instrument.

How it works
• Select a tuning that corresponds to your string instrument.
• Pluck a string on your instrument. 
• Instant feedback tells you if the string is sharp, flat or in tune.
• Adjust the tension of the string on your instrument according to the indicators.
• Repeat this procedure with all the strings of your instrument.

True Strings indicates tones that fall outside the tonal range of your instrument in order to avoid breaking strings while tuning.
True Strings uses a tuning editor with which you can define tunings with any number of strings tuned to any tone within an acceptable range.

Feature highlights
• Range of tone detection A0 - C8
• Very high precision of pitch measurement, about 0.1 cent resolution
• A detected tone is measured in respect to perfect pitch in cents
• Displays detected tone on a string closest to the measured frequency
• 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


## Version history (last 4 releases)

### 1.2.2 — 2023-02-11

• drag and drop import of temperaments
• bug fixes

### 1.2.1 — 2022-10-13

• added context menu with select, arpeggio, delete actions
• new icons in toolbar
• changed A4 reference tone is displayed correctly in scale 
• fixed display of scales using transposition 
• bug fixes

### 1.2 — 2022-01-09

built for iOS 15
bug fixes

### 1.0.0 — 2020-04-29

No release notes.

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## More apps by Ulf Akerstedt-Inoue

- [True Tone](https://appshunter.io/ios/app/true-tone/id1033051604)
- [Concert Pitch Instrument Tuner](https://appshunter.io/ios/app/concert-pitch-instrument-tuner/id1054760764)
- [True Beat](https://appshunter.io/ios/app/true-beat/id1289060785)
- [True Pitch](https://appshunter.io/ios/app/true-pitch/id1299377897)
- [Pierrot - Preschool](https://appshunter.io/ios/app/pierrot-preschool/id1478227194)

All apps by Ulf Akerstedt-Inoue: https://appshunter.io/developer/959565661

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-04.*