# UJ vs OptiSound

The clearest difference is in-app purchases: OptiSound at none against UJ's 5. UJ's advantage is iOS requirement (11.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. UJ sells 5 in-app purchases, starting at $15.99 per month. OptiSound asks for nothing beyond the download.

UJ ships an update monthly, OptiSound every 3 weeks. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | UJ | OptiSound |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/uj-make-party-playlists/id1447792017/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 200 MB | 79 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Paul Herring](https://appshunter.io/developer/1447792016) | [OptiSigns Inc](https://appshunter.io/developer/1475554406) |

## What reviewers say

### UJ

[App page](https://appshunter.io/ios/app/uj-make-party-playlists/id1447792017)

This app allows party hosts to create collaborative Spotify playlists where guests can request and vote on songs in real-time. It automatically updates the playlist with top-voted tracks, ensuring the music perfectly matches the party's vibe.

**Highlights:** Create collaborative Spotify playlists, Guest song requests, Real-time song voting, Automatic playlist updates, Host control features (Pro), Accept guest tips (Pro)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 4 UJ Playlists Per Month | $15.99 | per month |
| Package 01 | $4.99 | one-time |
| 1 UJ Playlist | $8.99 | one-time |
| Package 02 | $19.99 | one-time |
| 30 UJ Playlists | $35.99 | one-time |


### OptiSound

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

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

**In-app purchases:** none


## Frequently asked questions

### Is UJ free?

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

### Is OptiSound free?

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

### Do UJ or OptiSound have ads?

Neither UJ nor OptiSound shows ads.

### Which is updated more often, UJ or OptiSound?

UJ ships an update monthly, and OptiSound every 3 weeks. Most recently, UJ was updated on October 20, 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.*