# Radius Music vs OptiSound

Radius Music and OptiSound are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Radius Music ships an update fortnightly, OptiSound every 3 weeks. The most recent releases landed on October 25, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Radius Music | OptiSound |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 76 MB | 79 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Radius Music App LLC](https://appshunter.io/developer/1796247726) | [OptiSigns Inc](https://appshunter.io/developer/1475554406) |

## What reviewers say

### Radius Music

[App page](https://appshunter.io/ios/app/radius-music/id6741929181)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### OptiSound

[App page](https://appshunter.io/ios/app/optisound/id6743694208)

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

**In-app purchases:** none


## Frequently asked questions

### Is Radius Music free?

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

### Is OptiSound free?

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

### Do Radius Music or OptiSound have ads?

Neither Radius Music nor OptiSound shows ads.

### Which is updated more often, Radius Music or OptiSound?

Radius Music ships an update fortnightly, and OptiSound every 3 weeks. Most recently, Radius Music was updated on October 25, 2026 and OptiSound on October 5, 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.*