iSolergo vs Energy Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iSolergo
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iSolergo lets you make the preliminary design of a photovoltaic system in a few minutes, with the energy analysis, the configuration of photovoltaic modules and inverters and evaluation of plant profitability. In preliminary inspection, the App uses the resources of the device to automatically determine location, orientation and inclination of the modules, in order to obtain a complete energy evaluation of the site, using the global database climate. So, you can proceed by selecting PV modules and their better coupling with the inverter you want. The application verifies all the conditions of consistency (voltage, current and power) between the inverter and string combinations proposed and used. Solergo can handle systems with inverter with more trackers connected to strings with different exposures. The software contains an extensive and multi-brand modules and inverters database, with all the technical characteristics necessary for the calculation of the production system, considering the losses due to thermal drift of the modules, mismatching, losses in DC and efficiency of the inverter. In few steps, choosing the installation situation, the method of connection and tariff iSolergo calculates the resulting revenues. Adding the typical costs for installation and management, with the overall economic analysis, you can evaluate the profitability of the system and the cash flows resulting. All the calculations are shown on charts and tables easy to understand, to provide the potential customer all the information clearly and complete. All project data are stored on a file standard Solergo (software for the complete design of photovoltaic systems), and can be sent directly or via e-mail to your office computer.
Energy Viewer
Monitor your solar power system's output and home's energy consumption remotely. Track energy flows, manage your e-Car charging, and receive in-app notifications for plant status and updates.
- Remote solar system monitoring
- Home energy consumption tracking
- E-Car charging management
- In-app notifications
- Firmware updates
- PV plant performance monitoring
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Energy Viewer allows solar power plant owners to remotely monitor system's output and home's consumption*, with or without an energy storage system installed, for all FIMER inverter(s). Keep your energy usage and savings in check from anywhere you want: - Dynamically adaptable to any plant configuration; - Synoptic card for monitoring energy flows and performance of your PV plants;* - Energy monitoring card(s) for home's consumption tracking, with dedicated dashboards and KPIs;* - Compatible with FIMER FLEXA AC Wallbox: configure and manage your e-Car, remotely monitor charging process and trends; - Plant status in-App notifications, for monitoring active and closed events, and remote firmware updates; - Compatible with VSN 700-05 data-logger. Enhance your autonomy thanks to a smart and easy-to-use app, free for life, leveraging the power of the Aurora Vision® cloud-based platform. *Available only with a supported bi-directional meter installed (For more info please visit: https://www.fimer.com/sites/default/files/FIMER__Meters%20supported%20by%20FIMER_EN_Rev.B.pdf)
Screenshots
Verdict
The clearest difference is update cadence: Energy Viewer at every 2 months against iSolergo's every 9 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
iSolergo ships an update every 9 months, Energy Viewer every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | iSolergo | Energy Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.0 (4 ratings) — better |
| Positive reviews | — | 40.3% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 63 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Electro Graphics Srl | Fimer Spa |
In-app purchases
iSolergo
No in-app purchases
Energy Viewer
No in-app purchases
Questions
Is iSolergo free?
Is Energy Viewer free?
Do iSolergo or Energy Viewer have ads?
Which is updated more often, iSolergo or Energy Viewer?
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