# Spark SLO vs The Center Studio

The clearest difference is ratings volume: Spark SLO at 554 against The Center Studio's 37. The Center Studio's advantage is monetization model (free vs ad-supported). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Spark SLO against 4.9 for The Center Studio. That said, the two scores are not equally well evidenced: Spark SLO has 554 ratings behind it against 37, so its average is the more settled of the two.

Spark SLO ships an update monthly, The Center Studio every 3 weeks. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Spark SLO | The Center Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (554 ratings)](https://appshunter.io/ios/app/spark-slo/id1523088322/reviews)** | [4.9 (37 ratings)](https://appshunter.io/ios/app/the-center-studio/id6766676370/reviews) |
| Number of ratings | **554** | 37 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 38 MB | 38 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nick and Steph Young LLC](https://appshunter.io/developer/1497625125) | [Zoya LLC](https://appshunter.io/developer/1538556298) |

## What reviewers say

### Spark SLO

[App page](https://appshunter.io/ios/app/spark-slo/id1523088322)

This app offers a supportive environment for yoga practice, encouraging freedom of expression, playfulness, and compassion. It aims to foster personal growth through inward exploration in a judgment-free space.

**Highlights:** Supportive family-based yoga, Freedom of expression, Playfulness and compassion, Inward exploration, Judgment-free space

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

**In-app purchases:** none


### The Center Studio

[App page](https://appshunter.io/ios/app/the-center-studio/id6766676370)

Easily browse and purchase class packs or membership options. View the schedule, filter classes by 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, Track upcoming classes

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Spark SLO free?

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

### Is The Center Studio free?

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

### Which has better reviews, Spark SLO or The Center Studio?

Spark SLO is rated higher. Spark SLO averages 5.0 out of 5 from 554 ratings, while The Center Studio averages 4.9 from 37 ratings.

### Do Spark SLO or The Center Studio have ads?

Neither Spark SLO nor The Center Studio shows ads.

### Which is updated more often, Spark SLO or The Center Studio?

Spark SLO ships an update monthly, and The Center Studio every 3 weeks. Most recently, Spark SLO was updated on October 29, 2026 and The Center Studio on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*