# StringLab: Guitar Tuner — Precision guitar tuner

> Precision guitar tuner (iPhone/iPad app by BTC HODL LTD EOOD.)

- Source: https://appshunter.io/ios/app/stringlab-guitar-tuner/id6775404329 (this page in markdown: same URL + `.md`)
- Developer: [BTC HODL LTD EOOD](https://appshunter.io/developer/1896490557)
- Category: Music, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 51 MB
- Languages: English
- Released: 2026-06-10
- Data updated: 2026-07-06
- User reviews in markdown: https://appshunter.io/ios/app/stringlab-guitar-tuner/id6775404329/reviews.md

## What is StringLab?

StringLab is a fast, accurate tuner for guitar, bass, and ukulele players who care about getting it exactly right.

Play a string and StringLab instantly locks onto the note — it automatically detects which string you're tuning and shows you precisely how far off you are and which way to turn the peg. No menus, no tapping between strings. Just tune.

FEATURES
• Automatic string detection — play any string and StringLab finds it
• Guitar, bass, and ukulele tuning libraries — standard, drop, open, and alternate tunings
• Chromatic mode — tune any instrument to any note, free
• Custom tunings — save your own and recall them instantly
• Instrument rigs — keep multiple setups ready and switch in one tap
• Adjustable reference pitch (A4 calibration)
• Virtual capo — transpose your target tuning up or down by semitones
• Clean, readable gauges in several styles
• Built-in pitch pipe
• Light and dark themes

STRINGLAB PRO — one-time purchase, no subscription ever
• The complete tuning library for every instrument
• Premium gauge styles: Target, Precision, Trail, Dials, and Pulse
• Metronome and a custom theme editor
• Unlimited custom tunings and saved instrument rigs
• Extended A4 calibration and transpose range

Tune up. Play in tune. StringLab.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| StringLab Pro | $9.99 | one-time |



## Version history (last 3 releases)

### 1.0.6 — 2026-07-02

Fixed the low string not registering when you tune down into Drop C and other wide drop tunings — no more getting stuck on "Listening." The tuning needle and cents readout are also smoother and more responsive. Plus under-the-hood performance improvements.

### 1.0.3 — 2026-06-18

Stability and performance improvements

### 1.0 — 2026-06-10

No release notes.

## More apps by BTC HODL LTD EOOD

- [ZapArc Wallet](https://appshunter.io/ios/app/zaparc-wallet/id6767589961)

All apps by BTC HODL LTD EOOD: https://appshunter.io/developer/1896490557

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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 2026-07-06.*