# iSolergo vs PV Calculator Lite Version

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.

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

## The numbers

| Metric | iSolergo | PV Calculator Lite Version |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pv-calculator-lite-version/id6459019012/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 63 MB | 38 MB |
| Requires iOS | **11.0** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Electro Graphics Srl](https://appshunter.io/developer/542354467) | [Sven Schwertner](https://appshunter.io/developer/1700478261) |

## What reviewers say

### iSolergo

[App page](https://appshunter.io/ios/app/isolergo/id542354464)

**Features:** macOS Compatibility

**In-app purchases:** none


### PV Calculator Lite Version

[App page](https://appshunter.io/ios/app/pv-calculator-lite-version/id6459019012)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*