Comparison

iSolergo vs PV Calculator Lite Version

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iSolergo

Features
Read full description

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.

About

PV Calculator Lite Version

Estimate the potential of solar energy generation at your location. This tool offers detailed calculations for electricity fed into the grid, purchased electricity, annual savings, and payback time. It features site-specific solar irradiance and hourly resolution for accurate production and storage planning.

Highlights
  • Calculate electricity fed into grid and purchased
  • Estimate annual savings and payback time
  • Site-specific solar irradiance data
  • Hourly resolution for production and storage
  • Define PV modules, inverters, and load profiles
  • Automatic optimal orientation determination
  • Roof area measurement and panel positioning
Features
Read full description

It is important to present the potential of renewable energy generation in a simple and clear way for everyone. Get an idea of the potential of photovoltaic power generation at your site. languages: english, german What makes this app stand out from others * Typical meteorological year (TMY) as radiation data at your site * Hourly resolution allows an accurate view of production and battery storage throughout the day * Individual load profiles allow a design adapted to your consumer behavior * Roof area measurement and panel positioning allow realistic planning PV Calculator Lite Features - Calculate the amount of electricity fed into the grid and purchased - Calculate your annual savings and payback time - Site specific solar irradiance - Hourly resolution - Define your PV-Modules and power inverter - Automatic determination of optimal orientation - Define your energy demand and daily load profile - Sizing of your battery storage - Roof area measurement and panel positioning This app is Ad-free. Premium Version Features - Historical radiation data from 2005-2021 - Create multiple projects - Import/ export projects or share with friends - Consider Snowfall - Consider shading - Create your own individual load profile - Create an unlimited number of PV arrays - Export your results as Excel sheet

Screenshots

iSolergo4 screens
PV Calculator Lite Version4 screens

Verdict

The call

The clearest difference is update cadence: PV Calculator Lite Version at every 10 days against iSolergo's every 9 months. iSolergo's advantage is iOS requirement (11.0 vs 13.4). 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

iSolergo ships an update every 9 months, PV Calculator Lite Version every 10 days. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
iSolergo versus PV Calculator Lite Version: the parameters behind the verdict, then further details
ParameteriSolergoPV Calculator Lite Version
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 9 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better13.4
Further details — not scored
Size63 MB38 MB
Age rating4+4+
DeveloperElectro Graphics SrlSven Schwertner

In-app purchases

None

iSolergo

No in-app purchases

None

PV Calculator Lite Version

No in-app purchases

Questions

Is iSolergo free?
iSolergo is free to download, with no in-app purchases.
Is PV Calculator Lite Version free?
PV Calculator Lite Version is free to download, with no in-app purchases.
Do iSolergo or PV Calculator Lite Version have ads?
Neither iSolergo nor PV Calculator Lite Version shows ads.
Which is updated more often, iSolergo or PV Calculator Lite Version?
iSolergo ships an update every 9 months, and PV Calculator Lite Version every 10 days. Most recently, iSolergo was updated on October 9, 2026 and PV Calculator Lite Version on October 24, 2026.

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