# PolyTune vs D'Tools

The clearest difference is price: D'Tools at Free against PolyTune's $4.99. D'Tools also leads on rating (3.6 vs 2.8) and update cadence (every 4 months vs every 40 months). PolyTune's advantage is in-app purchases (none vs 1) and review sentiment (66% vs 49%). On ratings volume, ads and device support there is nothing between them.

D'Tools is free to download; PolyTune costs $4.99 up front. D'Tools sells 1 one-off in-app purchase. PolyTune asks for nothing beyond the download.

D'Tools holds the better App Store score, 3.6 against 2.8. Both are backed by a comparable volume of ratings — 79 and 30 respectively. Written reviews complicate that: 66% of PolyTune's written reviews are positive against 49% of D'Tools's, so the app with the better star average is not the one people write more warmly about.

PolyTune ships an update every 40 months, D'Tools every 4 months. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PolyTune | D'Tools |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [2.8 (79 ratings)](https://appshunter.io/ios/app/polytune/id364009203/reviews) | **[3.6 (30 ratings)](https://appshunter.io/ios/app/dtools/id375703586/reviews)** |
| Number of ratings | **79** | 30 |
| Positive reviews | **65.7% of reviews** | 49.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 4 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#184** | — |
| Size | 45 MB | 31 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TC Electronic](https://appshunter.io/developer/364009206) | [D'Addario & Company, Inc.](https://appshunter.io/developer/308730620) |

## What reviewers say

### PolyTune

[App page](https://appshunter.io/ios/app/polytune/id364009203)

**Currently charting:** #184 Top Paid · Music (US App Store)

This application provides a powerful and accurate tuning tool for musicians. It allows for simultaneous tuning of all strings, supports various guitar and bass modes, and offers drop tunings. Its technology is based on a highly-regarded pedal tuner used by professionals.

**Highlights:** Tune all strings at once, Guitar/bass mode, Drop tunings support, Award-winning pedal technology, Chromatic tuning modes, High accuracy

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🩵 Works really well
- 💯 Accurate and precise
- 🔢 Polyphonic tuning mode
- 🎨 Customizable display colors
- 🔌 Works with electric and acoustic guitars

**What reviewers complain about**

- 🐛 Crashes or freezes on newer iOS versions
- 🔇 Struggles to pick up low strings or in noisy environments
- ⏱️ Screen dims during use
- 🚫 No support for alternate/custom tunings
- 💤 Drains battery quickly when running in background

**Reported bugs**

- Crashes on launch
- Unable to detect or tune certain strings
- Inaccurate tuning readings

**Requested features**

- Add support for 432Hz tuning
- Implement custom tuning options
- Improve compatibility with external audio interfaces
- Add a dedicated on/off switch


### D'Tools

[App page](https://appshunter.io/ios/app/dtools/id375703586)

This app is a comprehensive toolkit for guitarists, offering features like a chord library, scale explorer, digital tuner, and metronome. It provides professional-grade utilities to help players of all levels improve their technique and explore musical possibilities.

**Highlights:** Chord library with 7,000+ chords, Scale and arpeggio explorer, Professional-grade digital tuner, Hyper-accurate digital metronome, Chord finder by fret selection, Lefty mode for chords

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buzz Feiten Tuning System | $19.99 | one-time |

**What reviewers like**

- 🎸 Comprehensive all-in-one guitar tool (tuner, metronome, chord finder, scales)
- 👍 User-friendly and intuitive interface
- 💰 Free or affordable pricing
- 🎯 Accurate tuner (when working properly)
- 📚 Extensive chord and scale library

**What reviewers complain about**

- 🐛 Frequent app crashes, especially with chord finder
- 🔊 Audio/sound issues after app closure or phone reboot
- 📱 Microphone access problems on newer iOS versions
- 🎵 Tuner accuracy issues (reads sharp or flat)
- ⚠️ Poor app support and unresponsive developers

**Reported bugs**

- Chord finder crashes app repeatedly
- Tuner stops working after iOS updates
- Microphone access not granted or requested properly
- Audio/sound stops working after app closure
- Metronome has no sound intermittently

**Requested features**

- Mute button for metronome
- Bluetooth audio output for metronome
- Dark mode/dark background for tuner visibility
- Ability to change tuning in chord dictionary
- Auto-play feature for continuous chord/scale playback


## Frequently asked questions

### Is PolyTune free?

PolyTune costs $4.99, with no in-app purchases.

### Is D'Tools free?

D'Tools is free to download, with in-app purchases available.

### Which has better reviews, PolyTune or D'Tools?

D'Tools is rated higher. PolyTune averages 2.8 out of 5 from 79 ratings, while D'Tools averages 3.6 from 30 ratings.

### Do PolyTune or D'Tools have ads?

Neither PolyTune nor D'Tools shows ads.

### Which is updated more often, PolyTune or D'Tools?

PolyTune ships an update every 40 months, and D'Tools every 4 months. Most recently, PolyTune was updated on October 17, 2026 and D'Tools on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*