# BoxUnion Studio vs Sunset Core

The clearest difference is update cadence: Sunset Core at every 3 weeks against BoxUnion Studio's every 4 months. BoxUnion Studio's advantage is monetization model (free vs free with in-app purchases) and ratings volume (203 vs 17). On price, rating, ads and in-app purchases there is nothing between them.

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

Sunset Core holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: BoxUnion Studio has 203 ratings behind it against 17, so its average is the more settled of the two.

BoxUnion Studio ships an update every 4 months, Sunset Core every 3 weeks. The most recent releases landed on October 1, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | BoxUnion Studio | Sunset Core |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (203 ratings)](https://appshunter.io/ios/app/boxunion-studio/id1561308424/reviews) | **[5.0 (17 ratings)](https://appshunter.io/ios/app/sunset-core/id6743100486/reviews)** |
| Number of ratings | **203** | 17 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 97 MB | 38 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [BoxUnion Santa Monica LLC](https://appshunter.io/developer/1446818491) | [Sunset Core, LLC](https://appshunter.io/developer/1801325795) |

## What reviewers say

### BoxUnion Studio

[App page](https://appshunter.io/ios/app/boxunion-studio/id1561308424)

Easily manage your boxing fitness journey with this app. Book classes, personal training, and access on-demand workouts. Sync your schedule, update your profile, and purchase credits directly from your phone.

**Highlights:** Book classes and personal training, Access on-demand boxing workouts, Manage personal information, Sync schedule to personal calendar, Purchase class credits, Check membership status, Check-in to class

**Features:** macOS Compatibility

**In-app purchases:** none


### Sunset Core

[App page](https://appshunter.io/ios/app/sunset-core/id6743100486)

Easily browse and purchase class packs or memberships. View the schedule, filter by class type, and manage your reservations to stay organized and committed to your fitness goals.

**Highlights:** Purchase class packs and memberships, Browse class schedule, Filter classes by type, Manage class reservations, Stay organized with fitness goals

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is BoxUnion Studio free?

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

### Is Sunset Core free?

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

### Which has better reviews, BoxUnion Studio or Sunset Core?

Sunset Core is rated higher. BoxUnion Studio averages 4.8 out of 5 from 203 ratings, while Sunset Core averages 5.0 from 17 ratings.

### Do BoxUnion Studio or Sunset Core have ads?

Neither BoxUnion Studio nor Sunset Core shows ads.

### Which is updated more often, BoxUnion Studio or Sunset Core?

BoxUnion Studio ships an update every 4 months, and Sunset Core every 3 weeks. Most recently, BoxUnion Studio was updated on October 1, 2026 and Sunset Core on September 21, 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.*