# KEYSOL vs The Sun

The clearest difference is update cadence: The Sun at fortnightly against KEYSOL's every 14 months. KEYSOL's advantage is iOS requirement (10.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KEYSOL ships an update every 14 months, The Sun fortnightly. The most recent releases landed on October 17, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | KEYSOL | The Sun |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 158 MB | 86 MB |
| Requires iOS | **10.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vivaldi S.R.L.](https://appshunter.io/developer/1266604469) | [Anazer srl](https://appshunter.io/developer/1648292581) |

## 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


### The Sun

[App page](https://appshunter.io/ios/app/the-sun/id6468482860)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KEYSOL free?

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

### Is The Sun free?

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

### Do KEYSOL or The Sun have ads?

Neither KEYSOL nor The Sun shows ads.

### Which is updated more often, KEYSOL or The Sun?

KEYSOL ships an update every 14 months, and The Sun fortnightly. Most recently, KEYSOL was updated on October 17, 2026 and The Sun on October 4, 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.*