# PV Calculator. vs Mr. Solar Doc

The clearest difference is ads: PV Calculator. at none against Mr. Solar Doc's shown. PV Calculator. also leads on iOS requirement (13.0 vs 15.0). Mr. Solar Doc's advantage is update cadence (every 4 days vs every 7 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. PV Calculator. sells 1 one-off in-app purchase and Mr. Solar Doc sells 2 in-app purchases, starting at $14.99 per year. Whichever you choose, the download price is not the number that matters.

PV Calculator. ships an update every 7 months, Mr. Solar Doc every 4 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | PV Calculator. | Mr. Solar Doc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pv-calculator/id6758427564/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 14 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nanjibhai Gorasiya](https://appshunter.io/developer/1834066312) | [Simon Petersson](https://appshunter.io/developer/1896477085) |

## What reviewers say

### PV Calculator.

[App page](https://appshunter.io/ios/app/pv-calculator/id6758427564)

This tool simplifies solar photovoltaic system design and analysis for professionals and students. It offers a comprehensive Energy Hub with multiple calculators, providing instant results, visual charts, and clear insights for efficient PV system planning and optimization.

**Highlights:** Energy Hub with multiple solar calculators, Calculate solar panel power output, Analyze energy generation (daily, monthly, yearly), Design solar array size, Calculate system voltage and configuration, Instant calculation results, Visual charts and performance summaries

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $9.99 | one-time |


### Mr. Solar Doc

[App page](https://appshunter.io/ios/app/mr-solar-doc/id6806979141)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Yearly | $14.99 | per year |
| Solar Energy Calculation | $3.99 | one-time |


## Frequently asked questions

### Is PV Calculator. free?

PV Calculator. is free to download, with in-app purchases available.

### Is Mr. Solar Doc free?

Mr. Solar Doc is free to download, with in-app purchases available.

### Do PV Calculator. or Mr. Solar Doc have ads?

Mr. Solar Doc shows ads; PV Calculator. does not.

### Which is updated more often, PV Calculator. or Mr. Solar Doc?

PV Calculator. ships an update every 7 months, and Mr. Solar Doc every 4 days. Most recently, PV Calculator. was updated on November 5, 2026 and Mr. Solar Doc on November 6, 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.*