# Emoncms vs Planet Devices

The clearest difference is update cadence: Planet Devices at every 2 months against Emoncms's every 17 months. Emoncms's advantage is iOS requirement (13.0 vs 15.6). On price, ads, 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.

Emoncms ships an update every 17 months, Planet Devices every 2 months. The most recent releases landed on September 27, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Emoncms | Planet Devices |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/emoncms/id1169483587/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 36 MB | 31 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Megni](https://appshunter.io/developer/1169190655) | [Planet Devices](https://appshunter.io/developer/1719289827) |

## What reviewers say

### Emoncms

[App page](https://appshunter.io/ios/app/emoncms/id1169483587)

This application allows users to view energy, temperature, and environmental data dashboards from Emoncms servers. It is an open-source tool designed for processing, logging, and visualizing environmental information.

**Highlights:** View Emoncms dashboards, Supports MyElectric dashboards, Connects to emoncms.org, Connects to custom Emoncms servers, Open-source application, Visualizes energy data, Visualizes environmental data

**Features:** macOS Compatibility

**In-app purchases:** none


### Planet Devices

[App page](https://appshunter.io/ios/app/planet-devices/id6473628556)

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

**In-app purchases:** none


## Frequently asked questions

### Is Emoncms free?

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

### Is Planet Devices free?

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

### Do Emoncms or Planet Devices have ads?

Neither Emoncms nor Planet Devices shows ads.

### Which is updated more often, Emoncms or Planet Devices?

Emoncms ships an update every 17 months, and Planet Devices every 2 months. Most recently, Emoncms was updated on September 27, 2026 and Planet Devices on October 10, 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.*