# Lighting Calculations vs JoSchool

The clearest difference is in-app purchases: JoSchool at none against Lighting Calculations's 3. JoSchool also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Lighting Calculations sells 3 in-app purchases, starting at $1.99 per 3 months. JoSchool asks for nothing beyond the download.

Lighting Calculations ships an update every 5 weeks, JoSchool every 2 months. The most recent releases landed on November 9, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Lighting Calculations | JoSchool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/lighting-calculations/id1021580336/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 15 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) | [Sama Telecom](https://appshunter.io/developer/844282163) |

## What reviewers say

### Lighting Calculations

[App page](https://appshunter.io/ios/app/lighting-calculations/id1021580336)

This app provides a comprehensive suite of tools for lighting calculations, conversions, and technical guides. It helps users design lighting systems, analyze LEDs, and ensure compliance with lighting standards, saving time and reducing design errors.

**Highlights:** Room lighting design calculations, LED analysis and power supply calculations, Light efficiency and power factor compensation, Photometric code decoding, Lumen, Lux, Candela, Watt conversions, Color temperature conversion (Kelvin to RGB), Normative requirements and technical guides

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Version (3 months) | $1.99 | per 3 months |
| PRO Version (1 year) | $2.99 | per year |
| PRO Version (Lifetime) | $14.99 | one-time |


### JoSchool

[App page](https://appshunter.io/ios/app/joschool/id1279393394)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lighting Calculations free?

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

### Is JoSchool free?

JoSchool is free to download, with no in-app purchases.

### Do Lighting Calculations or JoSchool have ads?

Lighting Calculations shows ads; JoSchool does not.

### Which is updated more often, Lighting Calculations or JoSchool?

Lighting Calculations ships an update every 5 weeks, and JoSchool every 2 months. Most recently, Lighting Calculations was updated on November 9, 2026 and JoSchool on October 8, 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.*