# HOTWORX vs [solidcore]

The clearest difference is ads: HOTWORX at none against [solidcore]'s shown. HOTWORX also leads on update cadence (fortnightly vs every 6 weeks). [solidcore]'s advantage is review sentiment (21% vs 8%) and chart position (#163 vs unranked). On price, rating, ratings volume 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.

On the App Store both sit at effectively the same score — 4.8 for HOTWORX against 4.9 for [solidcore]. Both are backed by a comparable volume of ratings — 31K and 29K respectively. Written reviews are what separate them: 8% of HOTWORX's written reviews are positive against 21% of [solidcore]'s.

HOTWORX ships an update fortnightly, [solidcore] every 6 weeks. Both last shipped on September 27, 2026.

## The numbers

| Metric | HOTWORX | [solidcore] |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (31K ratings)](https://appshunter.io/ios/app/hotworx/id1182030612/reviews) | **[4.9 (29K ratings)](https://appshunter.io/ios/app/solidcore/id1452460311/reviews)** |
| Number of ratings | **31K** | 29K |
| Positive reviews | 8.2% of reviews | **21.1% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | Free | Free |
| Best chart rank | — | **#163** |
| Size | 159 MB | 43 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Planet Beach](https://appshunter.io/developer/1017284758) | [solidcore](https://appshunter.io/developer/1437422851) |

## What reviewers say

### HOTWORX

[App page](https://appshunter.io/ios/app/hotworx/id1182030612)

This app helps members of a specific fitness studio track calories burned during workouts and the subsequent "after-burn" period. It calculates total calorie expenditure over a 100-minute session and integrates with the Health app.

**Highlights:** Track calories burned, Monitor 1-hour after-burn, Calculate total session calories, Integrates with Health app

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🔥 Great workouts
- 🕰️ 24/7 accessibility
- 🧘‍♀️ Relaxing infrared sauna experience
- 🔥 Effective for fat loss and muscle toning
- 🧠 Positive mental health benefits

**What reviewers complain about**

- 🐛 Buggy and unreliable app
- 🤯 Complicated and frustrating app navigation
- 🔢 Too many steps to schedule a workout
- 🤖 Inaccurate calorie tracking and sync issues
- 🔍 Lack of app descriptions and class information

**Reported bugs**

- App crashes and freezes frequently
- Inability to record workouts and after-burn
- Inconsistent sync with Apple Watch and Fitbit
- Scheduled workouts disappearing from the app
- Incorrect calorie counting and data loss

**Requested features**

- Ability to book entire sauna room
- Seamless integration with fitness trackers
- Streamlined scheduling and booking process
- More detailed class descriptions in the app
- Automatic calorie tracking and recording


### [solidcore]

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

**Currently charting:** #163 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 HOTWORX free?

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

### Is [solidcore] free?

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

### Which has better reviews, HOTWORX or [solidcore]?

[solidcore] is rated higher. HOTWORX averages 4.8 out of 5 from 31K ratings, while [solidcore] averages 4.9 from 29K ratings.

### Do HOTWORX or [solidcore] have ads?

[solidcore] shows ads; HOTWORX does not.

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

HOTWORX ships an update fortnightly, and [solidcore] every 6 weeks. Most recently, HOTWORX was updated on September 27, 2026 and [solidcore] on September 27, 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.*