# Proteus Sensor Cloud vs Notopium

The clearest difference is ads: Notopium at none against Proteus Sensor Cloud's shown. Proteus Sensor Cloud's advantage is update cadence (every 6 weeks vs every 4 months) and iOS requirement (12.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

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

Proteus Sensor Cloud ships an update every 6 weeks, Notopium every 4 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Proteus Sensor Cloud | Notopium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/proteus-sensor-cloud/id6599858572/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 45 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Avarachan Cherian](https://appshunter.io/developer/1760793132) | [Meisam Yousefzadeh](https://appshunter.io/developer/1854807801) |

## What reviewers say

### Proteus Sensor Cloud

[App page](https://appshunter.io/ios/app/proteus-sensor-cloud/id6599858572)

This utility app connects to and manages Proteus sensors. It allows users to monitor and control their sensor data. Designed for seamless integration with Proteus hardware.

**Highlights:** Connect to Proteus sensors, Monitor sensor data, Control sensor functions, Seamless hardware integration, Data management

**Features:** macOS Compatibility

**In-app purchases:** none


### Notopium

[App page](https://appshunter.io/ios/app/notopium/id6759302623)

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

**In-app purchases:** none


## Frequently asked questions

### Is Proteus Sensor Cloud free?

Proteus Sensor Cloud is free to download, with no in-app purchases.

### Is Notopium free?

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

### Do Proteus Sensor Cloud or Notopium have ads?

Proteus Sensor Cloud shows ads; Notopium does not.

### Which is updated more often, Proteus Sensor Cloud or Notopium?

Proteus Sensor Cloud ships an update every 6 weeks, and Notopium every 4 months. Most recently, Proteus Sensor Cloud was updated on October 27, 2026 and Notopium on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*