Emoncms 1.2.3

OpenEnergyMonitor ❘ Freeware ❘
Android iOS
out of 5 votes

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Open-source Emoncms dashboard viewer.

Access MyElectric Emoncms dashboards from http://emoncms.org or any other Emoncms server.

Emoncms is a web application that is open-source, designed for processing, logging, and visualizing energy, temperature, and other environmental data. It was created as part of the OpenEnergyMonitor project.

OpenEnergyMonitor is a project aimed at developing open-source energy monitoring tools to aid in understanding our energy consumption, the functioning of our energy systems, and the quest for sustainable energy solutions.

https://github.com/emoncms/emoncms-ios

For assistance or to participate in the development process, please communicate via the forum: https://community.openenergymonitor.org/c/emoncms/mobile-app

Overview

Emoncms is a Freeware software in the category System Utilities developed by OpenEnergyMonitor.

The latest version of Emoncms is 1.2.3, released on 09/18/2024. It was initially added to our database on 09/18/2024.

Emoncms runs on the following operating systems: Android/iOS.

Users of Emoncms gave it a rating of 4 out of 5 stars.

Pros

Open-source and free — Emoncms is open-source (code on GitHub) allowing inspection, customization and self-hosting.
Local hosting option — can run on a Raspberry Pi (emonSD) or your own server for full data ownership and offline operation.
Strong community and support forum — active OpenEnergyMonitor community forum for help, integrations, and development discussion.
Focused on energy and environmental data — built specifically for processing, logging and visualising energy, temperature and related sensor data (good for solar, heat pumps, building monitoring).
Modular architecture and integrations — supports feeds, input APIs, apps (MyElectric/MySolar), dashboards and integrations with tools like Node-RED, Home Assistant, ESPHome, etc.
Mobile apps available — official iOS app (and Android client) to view dashboards and feeds, with widget support, dark mode and multi-account support.
Privacy-friendly — developer states the mobile app doesn’t collect user data; local hosting keeps your raw data private.
Lightweight and low-cost hardware requirements — runs comfortably on inexpensive hardware (e.g. Raspberry Pi) for small installations.
Customisability of dashboards and myApp views — users can create tailored views for generation, consumption and other datasets.
Active documentation and project resources — project website and docs provide setup guides, hardware pairing and software configuration details.

Cons

Steeper setup and maintenance — self-hosting (emonSD, Raspberry Pi, server) requires some technical knowledge and ongoing maintenance (updates, backups).
UI/UX can feel dated and inconsistent — web interface and some apps/plugins may look or behave less polished than commercial, modern SaaS alternatives.
Mobile apps less frequently updated — iOS app changelog shows last notable update in 2022; feature parity and active development for mobile clients may lag server features.
Limited advanced analytics out of the box — while powerful for logging/visualisation, advanced analytics, forecasting or automated insights may require additional tooling or custom development.
Community-based support, limited commercial SLA — support is primarily via forums and community; no guaranteed commercial support or SLAs unless purchasing third-party services.
Scalability concerns for large deployments — while suitable for home and small-site use, very large numbers of feeds/users may need more robust architecture and tuning.
Plugin and integration complexity — many integrations exist but can require custom setup (APIs, credentials, MQTT, Node-RED), which increases complexity.
Documentation gaps and fragmentation — overall docs are good but some advanced features or edge cases rely on forum threads or community-contributed guides.
Dependency on hardware ecosystem — the broader OpenEnergyMonitor ecosystem (sensors, emonPi, emonTx) is helpful but can create vendor-lock-like expectations if you prefer other hardware.
Mobile feature limitations — mobile apps focus on viewing dashboards and widgets; advanced configuration and data management are usually done in the web UI rather than the apps.

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Latest Version
1.2.3

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