Emoncms vs MAP Energy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Emoncms
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.
- View Emoncms dashboards
- Supports MyElectric dashboards
- Connects to emoncms.org
- Connects to custom Emoncms servers
- Open-source application
- Visualizes energy data
- Visualizes environmental data
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Open-source Emoncms dashboard viewer. View MyElectric Emoncms dashboards from http://emoncms.org or any other Emoncms server. Emoncms is an open-source web application for processing, logging and visualising energy, temperature and other environmental data developed as part of the http://openenergymonitor.org project. OpenEnergyMonitor is a project to develop open-source energy monitoring tools to help us relate to our use of energy, our energy systems and the challenge of sustainable energy. https://github.com/emoncms/emoncms-ios For support or to get involved with development please post on the forum: https://community.openenergymonitor.org/c/emoncms/mobile-app
MAP Energy
Monitor and control your Tesla Powerwall energy usage with real-time data and historical performance tracking. Automate backup reserves and export behavior using intelligent tools.
- Live energy flow monitoring
- Historical performance tracking
- Automated backup reserve control
- Intelligent export behavior automation
- Tesla Powerwall integration
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MapEnergy helps you monitor and control your Tesla Powerwall energy usage. View live energy flow, track historical performance, and automate your backup reserve and export behaviour using intelligent automation tools. Terms of Use : - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: MAP Energy at 100% against Emoncms's 56%. MAP Energy also leads on rating (5.0 vs 4.4) and update cadence (every 8 days vs every 17 months). Emoncms's advantage is in-app purchases (none vs 2) and ratings volume (5 vs 1). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MAP Energy sells 2 in-app purchases, starting at $3.99 per month. Emoncms asks for nothing beyond the download.
MAP Energy holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Emoncms has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 56% of Emoncms's written reviews are positive against 100% of MAP Energy's.
Emoncms ships an update every 17 months, MAP Energy every 8 days. The most recent releases landed on September 27, 2026 and October 5, 2026 respectively.
| Parameter | Emoncms | MAP Energy |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 55.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 17 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 36 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Megni | Aptica Limited |
Customer experience
Emoncms
MAP Energy
In-app purchases
Emoncms
No in-app purchases
MAP Energy
- Premium Monthly14 Days trial$3.991 Month
- Premium Yearly14 Days trial$39.991 Year
