# GuiTuner vs Spark

The clearest difference is review sentiment: Spark at 55% against GuiTuner's 0%. Spark also leads on update cadence (every 2 weeks vs every 46 months). GuiTuner's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Spark sells 1 one-off in-app purchase. GuiTuner asks for nothing beyond the download.

GuiTuner ships an update every 46 months, Spark every 2 weeks. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | GuiTuner | Spark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (25K ratings)](https://appshunter.io/ios/app/spark-chords-backing-tracks/id1457653921/reviews)** |
| Number of ratings | — | **25K** |
| Positive reviews | 0.0% of reviews | **54.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 46 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 562 MB |
| Requires iOS | **14.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [YUBI](https://appshunter.io/developer/555804746) | [Positive Grid Inc](https://appshunter.io/developer/751979910) |

## What reviewers say

### GuiTuner

[App page](https://appshunter.io/ios/app/guituner/id602642889)

This application offers a highly accurate and visually appealing way to tune your guitar. It provides a straightforward tuning experience without any advertisements or user tracking.

**Highlights:** High accuracy tuning, Pleasing graphics, Ad-free experience, No user tracking, Easy to use

**Features:** macOS Compatibility

**In-app purchases:** none


### Spark

[App page](https://appshunter.io/ios/app/spark-chords-backing-tracks/id1457653921)

This intelligent amp and app combination creates a virtual band that learns your playing style to generate accompanying bass and drums. Access millions of songs with auto-displayed chords, over 10,000 tones, and voice command functionality. It's designed to enhance your practice and performance experience.

**Highlights:** Auto chord display for millions of songs, Smart Jam with AI-generated bass and drums, Voice command control, BIAS tone engine with 10,000+ presets, Tempo control and looping for practice, Realistic virtual tube amps and effects

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Experience Jimi Hendrix™ | $19.99 | one-time |

**What reviewers like**

- 🚀 Versatile, powerful, and full of features
- 👍 Great sound quality and tone options
- 🎨 Impressive amp and effects modeling
- 💡 Useful smart jam and play-along features
- 🎸 Excellent for practice and jamming

**What reviewers complain about**

- 🐛 Connectivity and pairing issues with app
- 🐛 Buggy app with crashes and glitches
- 🔍 Difficult to organize and find saved tones
- 🔊 Muddy or harsh tones at times
- 🔋 Battery life could be better

**Reported bugs**

- App frequently disconnects from amp
- Tone selection issues and inconsistencies
- Sudden loud noises or feedback from amp
- Firmware update process is cumbersome
- Spotify integration not working as advertised

**Requested features**

- Add looping functionality
- Improve auto-chord detection and playback
- Allow more customization of signal chain and effects
- Integrate with more music services beyond Spotify
- Add EQ controls for Bluetooth speaker mode


## Frequently asked questions

### Is GuiTuner free?

GuiTuner is free to download, with no in-app purchases.

### Is Spark free?

Spark is free to download, with in-app purchases available.

### Do GuiTuner or Spark have ads?

Neither GuiTuner nor Spark shows ads.

### Which is updated more often, GuiTuner or Spark?

GuiTuner ships an update every 46 months, and Spark every 2 weeks. Most recently, GuiTuner was updated on October 6, 2026 and Spark on October 17, 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.*