# Studio 509 NJ vs [solidcore]

The clearest difference is update cadence: [solidcore] at every 6 weeks against Studio 509 NJ's every 6 months. [solidcore] also leads on chart position (#137 vs unranked). Studio 509 NJ's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.4). On price, 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.

Studio 509 NJ ships an update every 6 months, [solidcore] every 6 weeks. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Studio 509 NJ | [solidcore] |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (29K ratings)](https://appshunter.io/ios/app/solidcore/id1452460311/reviews)** |
| Number of ratings | — | **29K** |
| Positive reviews | — | 21.1% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Monetization | — | Free |
| Best chart rank | — | **#137** |
| Size | 118 MB | 70 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Studio 509](https://appshunter.io/developer/1614265545) | [solidcore](https://appshunter.io/developer/1437422851) |

## What reviewers say

### Studio 509 NJ

[App page](https://appshunter.io/ios/app/studio-509-nj/id1221636317)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### [solidcore]

[App page](https://appshunter.io/ios/app/solidcore/id1452460311)

**Currently charting:** #137 Top Free · Health & Fitness (US App Store)

This app allows members to find and book pay-as-you-go fitness classes. Users can connect with friends, see their class schedules, book them into classes, and share their own class activities. Track your fitness journey and stay motivated by seeing your class completion history.

**Highlights:** Find and book classes, Pay-as-you-go class sign-ups, Connect with friends, See friends' class schedules, Book friends into classes, Share class activities, Track class completion

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 👍 Efficient booking process
- ⭐ Great workout classes

**What reviewers complain about**

- 🐛 Glitchy and slow app
- 📆 Lack of class package management
- 🔍 Unclear waitlist information
- 🔒 Privacy concerns with calendar access

**Reported bugs**

- Inconsistent class credit tracking
- Unreliable class cancellation and refund process
- Frequent crashes and loading issues

**Requested features**

- Ability to see class package balances
- Waitlist position visibility
- Option to add classes to calendar without full access
- Improved app stability and performance


## Frequently asked questions

### Is Studio 509 NJ free?

Studio 509 NJ is free to download, with no in-app purchases.

### Is [solidcore] free?

[solidcore] is free to download, with no in-app purchases.

### Do Studio 509 NJ or [solidcore] have ads?

Both Studio 509 NJ and [solidcore] show ads.

### Which is updated more often, Studio 509 NJ or [solidcore]?

Studio 509 NJ ships an update every 6 months, and [solidcore] every 6 weeks. Most recently, Studio 509 NJ was updated on October 5, 2026 and [solidcore] on October 25, 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.*