# Polysthenics vs Spark (598450)

The clearest difference is ads: Spark (598450) at none against Polysthenics's shown. On price, update cadence, 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.

Polysthenics ships an update monthly, Spark (598450) every 3 weeks. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Polysthenics | Spark (598450) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/polysthenics/id6476512037/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 155 MB | 186 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Polysthenics LLC](https://appshunter.io/developer/1726948651) | [Dianna Dick](https://appshunter.io/developer/6797124144) |

## What reviewers say

### Polysthenics

[App page](https://appshunter.io/ios/app/polysthenics/id6476512037)

Easily plan and schedule your fitness classes directly from your mobile device. View class schedules, sign up for sessions, and access studio location details. Optimize your time and enjoy the convenience of managing your fitness activities on the go.

**Highlights:** View class schedules, Sign up for classes, Access studio location, Optimize time management, Convenient mobile access

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Spark (598450)

[App page](https://appshunter.io/ios/app/spark-598450/id6797124142)

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

**In-app purchases:** none


## Frequently asked questions

### Is Polysthenics free?

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

### Is Spark (598450) free?

Spark (598450) is free to download, with no in-app purchases.

### Do Polysthenics or Spark (598450) have ads?

Polysthenics shows ads; Spark (598450) does not.

### Which is updated more often, Polysthenics or Spark (598450)?

Polysthenics ships an update monthly, and Spark (598450) every 3 weeks. Most recently, Polysthenics was updated on October 8, 2026 and Spark (598450) on October 9, 2026.

---

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