# O3 vs Melt Focus

The clearest difference is in-app purchases: Melt Focus at none against O3's 1. Melt Focus also leads on review sentiment (100% vs 91%). O3's advantage is ratings volume (14 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. O3 sells 1 in-app purchase, starting at $6.00 per 7 days. Melt Focus asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for O3 against 5.0 for Melt Focus. That said, the two scores are not equally well evidenced: O3 has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 91% of O3's written reviews are positive against 100% of Melt Focus's.

O3 ships an update every 9 days, Melt Focus every 6 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | O3 | Melt Focus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (14 ratings)](https://appshunter.io/ios/app/o3-study-with-friends/id6730118317/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/melt-focus/id6777324300/reviews)** |
| Number of ratings | **14** | 1 |
| Positive reviews | 90.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 6 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 171 MB | 50 MB |
| Requires iOS | **16.0** | 16.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [O3 Platforms Limited](https://appshunter.io/developer/1850051015) | [CHRISTOPHER MICHAEL CORDERO](https://appshunter.io/developer/6777324302) |

## What reviewers say

### O3

[App page](https://appshunter.io/ios/app/o3-study-with-friends/id6730118317)

Discover and access 24/7 study cafes designed for focused work and social interaction. Book spaces, connect with others, and enhance your productivity in a unique cafe environment.

**Highlights:** Unlock 24/7 study cafes, Book study spaces, Work and study environments, Meet new people, Socialize in cafes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10HR COMBO | $6.00 | per 7 days |


### Melt Focus

[App page](https://appshunter.io/ios/app/melt-focus/id6777324300)

This app uses a unique visual metaphor of melting ice to help users track focus sessions. It offers customizable timers, progress tracking, and reflective journaling to build consistent habits without feeling overwhelming.

**Highlights:** Customizable focus sessions, Session history and progress statistics, Journal reflections, Home Screen widgets, Ambient focus sounds, Secure syncing across devices

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

**In-app purchases:** none


## Frequently asked questions

### Is O3 free?

O3 is free to download, with in-app purchases available.

### Is Melt Focus free?

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

### Which has better reviews, O3 or Melt Focus?

Melt Focus is rated higher. O3 averages 4.9 out of 5 from 14 ratings, while Melt Focus averages 5.0 from 1 ratings.

### Do O3 or Melt Focus have ads?

Neither O3 nor Melt Focus shows ads.

### Which is updated more often, O3 or Melt Focus?

O3 ships an update every 9 days, and Melt Focus every 6 days. Most recently, O3 was updated on November 8, 2026 and Melt Focus on October 31, 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.*