# Function Online vs Core4Collective

The clearest difference is in-app purchases: Core4Collective at none against Function Online's 2. Core4Collective also leads on ratings volume (3 vs 1). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Function Online sells 2 in-app purchases, starting at $18.99 per month. Core4Collective asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Function Online against 5.0 for Core4Collective. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on September 22, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Function Online | Core4Collective |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/function-online/id1544747356/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/core4collective/id1636412746/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 50 MB | 121 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Function Online Inc.](https://appshunter.io/developer/1544747359) | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) |

## What reviewers say

### Function Online

[App page](https://appshunter.io/ios/app/function-online/id1544747356)

Engage in fun and effective workouts designed by women, accessible from anywhere. Strengthen, lengthen, and tone your body with follow-along classes suitable for all fitness levels. Join a supportive community and access a variety of workout programs and challenges.

**Highlights:** 100+ classes in diverse categories, 3-5 new classes weekly, Written workout programs, Fitness challenges, Expert instructor-led sessions, Suitable for all fitness levels

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Function Online Monthly | $18.99 | per month |
| Function Online Yearly | $189.99 | per year |


### Core4Collective

[App page](https://appshunter.io/ios/app/core4collective/id1636412746)

This fitness app offers a multi-practice studio experience with classes designed to strengthen and balance your body and mind. Access on-demand workouts, book in-studio sessions, track your progress, and connect with a community.

**Highlights:** On-demand workouts, In-studio class booking, Workout review, Community connection, Account management

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

**In-app purchases:** none


## Frequently asked questions

### Is Function Online free?

Function Online is free to download, with in-app purchases available.

### Is Core4Collective free?

Core4Collective is free to download, with no in-app purchases.

### Which has better reviews, Function Online or Core4Collective?

Function Online and Core4Collective are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Function Online or Core4Collective have ads?

Neither Function Online nor Core4Collective shows ads.

### Which is updated more often, Function Online or Core4Collective?

Function Online ships an update every 4 months, and Core4Collective every 4 months. Most recently, Function Online was updated on September 22, 2026 and Core4Collective on September 16, 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.*