# [solidcore] vs RFRM.

The clearest difference is ads: RFRM. at none against [solidcore]'s shown. [solidcore]'s advantage is update cadence (every 6 weeks vs every 6 months) and chart position (#182 vs unranked). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

[solidcore] ships an update every 6 weeks, RFRM. every 6 months. The most recent releases landed on October 15, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | [solidcore] | RFRM. |
| --- | --- | --- |
| 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 | **No** |
| Update frequency | **Every 6 weeks** | Every 6 months |
| Monetization | Free | — |
| Best chart rank | **#182** | — |
| Size | 43 MB | 31 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [solidcore](https://appshunter.io/developer/1437422851) | [REFORM PILATES STUDIOS LTD](https://appshunter.io/developer/1811323592) |

## What reviewers say

### [solidcore]

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

**Currently charting:** #182 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


### RFRM.

[App page](https://appshunter.io/ios/app/rfrm/id6745216255)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is [solidcore] free?

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

### Is RFRM. free?

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

### Do [solidcore] or RFRM. have ads?

[solidcore] shows ads; RFRM. does not.

### Which is updated more often, [solidcore] or RFRM.?

[solidcore] ships an update every 6 weeks, and RFRM. every 6 months. Most recently, [solidcore] was updated on October 15, 2026 and RFRM. on October 1, 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.*