# KEYSOL vs FretTools

The clearest difference is review sentiment: FretTools at 100% against KEYSOL's 0%. FretTools also leads on update cadence (every 6 days vs every 14 months). KEYSOL's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. FretTools sells 3 in-app purchases, starting at $2.99 per month. KEYSOL asks for nothing beyond the download.

KEYSOL ships an update every 14 months, FretTools every 6 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | KEYSOL | FretTools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/frettools-guitar-toolkit/id6761335800/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 6 days** |
| Monetization | **Free** | Freemium |
| Size | 158 MB | 66 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | +4 |
| Developer | [Vivaldi S.R.L.](https://appshunter.io/developer/1266604469) | [webLuthier, LLC](https://appshunter.io/developer/1888969475) |

## What reviewers say

### KEYSOL

[App page](https://appshunter.io/ios/app/keysol/id1266604470)

Stream and control your music playlists from your mobile device. Synchronize music across multiple devices or enjoy independent playback in different rooms. Supports various audio formats and internet radio sources.

**Highlights:** Playlist playback and control, Multi-device synchronization, Independent room audio, Support for Airplay, DLNA, WiFi DIRECT, Wide range of audio format support, Internet radio and local file streaming, NAS streaming

**Features:** macOS Compatibility

**In-app purchases:** none


### FretTools

[App page](https://appshunter.io/ios/app/frettools-guitar-toolkit/id6761335800)

This app offers a precision tuner, an extensive chord library with interactive playback, and a gear tracker for instruments and equipment. It's designed for musicians to streamline their practice and documentation needs.

**Highlights:** Real-time chromatic tuner for multiple instruments, 2,500+ chords with 3,200+ voicings, Interactive chord playback, Instrument and equipment gear tracking, Maintenance logging and PDF export, Offline functionality

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $2.99 | per month |
| Yearly Pro | $17.99 | per year |
| Lifetime Pro | $49.99 | one-time |


## Frequently asked questions

### Is KEYSOL free?

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

### Is FretTools free?

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

### Do KEYSOL or FretTools have ads?

Neither KEYSOL nor FretTools shows ads.

### Which is updated more often, KEYSOL or FretTools?

KEYSOL ships an update every 14 months, and FretTools every 6 days. Most recently, KEYSOL was updated on November 3, 2026 and FretTools on October 31, 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.*