# Ohms Calc vs SolarWise

The clearest difference is price: SolarWise at Free against Ohms Calc's $0.99. Ohms Calc's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

SolarWise is free to download; Ohms Calc costs $0.99 up front. SolarWise sells 1 one-off in-app purchase. Ohms Calc asks for nothing beyond the download.

## The numbers

| Metric | Ohms Calc | SolarWise |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/solarwise-solar-calculator/id6761774468/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 28 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CHRISTOPHER GEORGE RUSTAGE](https://appshunter.io/developer/1602304843) | [Froggy Eye Ltd](https://appshunter.io/developer/1861347154) |

## What reviewers say

### Ohms Calc

[App page](https://appshunter.io/ios/app/ohms-calc/id1602304841)

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

**In-app purchases:** none


### SolarWise

[App page](https://appshunter.io/ios/app/solarwise-solar-calculator/id6761774468)

This app helps homeowners plan solar panel installations by providing personalized system recommendations and financial projections. It uses satellite data for accurate energy generation estimates and offers multiple configuration options. Users can track savings, CO₂ offsets, and export professional reports.

**Highlights:** Personalized system recommendations, Realistic financial projections, NASA satellite irradiance data, Multiple configuration options, Battery storage sizing, CO₂ offset tracking, Professional PDF report export

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SolarWise Pro | $9.99 | one-time |


## Frequently asked questions

### Is Ohms Calc free?

Ohms Calc costs $0.99, with no in-app purchases.

### Is SolarWise free?

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

### Do Ohms Calc or SolarWise have ads?

Neither Ohms Calc nor SolarWise shows ads.

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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.*