# 440 vs Explore Proteox

The clearest difference is device support: Explore Proteox at 3 against 440's 1. Explore Proteox also leads on iOS requirement (15.0 vs 18.0). On price, rating, ratings volume and update cadence 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 — 5.0 for 440 against 5.0 for Explore Proteox. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on October 10, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 440 | Explore Proteox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/440/id1540957172/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/explore-proteox/id6477702161/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | Free | Free |
| Size | 79 MB | 432 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [COUTTS & COMPANY](https://appshunter.io/developer/570181480) | [Holosphere](https://appshunter.io/developer/1635956235) |

## What reviewers say

### 440

[App page](https://appshunter.io/ios/app/440/id1540957172)

An invite-only social networking app for a specific community, designed to facilitate digital connections and networking among like-minded individuals. Users can join interest groups, access exclusive events, and engage with a curated content library.

**Highlights:** Connect with community members, Join interest-based groups, Access exclusive online events, Engage with content library, Private and group messaging, Newsfeed and connections

**In-app purchases:** none


### Explore Proteox

[App page](https://appshunter.io/ios/app/explore-proteox/id6477702161)

Visualize advanced cryogenic systems in augmented reality on your own device. Explore key features and details of modular dilution refrigerators to assess their suitability for your applications and lab space.

**Highlights:** Augmented reality system visualization, Life-size 3D models, Interactive component exploration, Lab space placement simulation, Customizable insert viewing, Detailed feature exploration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 440 free?

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

### Is Explore Proteox free?

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

### Which has better reviews, 440 or Explore Proteox?

440 and Explore Proteox are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do 440 or Explore Proteox have ads?

Neither 440 nor Explore Proteox shows ads.

### Which is updated more often, 440 or Explore Proteox?

440 ships an update every 6 months, and Explore Proteox every 6 months. Most recently, 440 was updated on October 10, 2026 and Explore Proteox on October 4, 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.*