# Lighting Calculations vs Notes Manager

The clearest difference is in-app purchases: Notes Manager at none against Lighting Calculations's 3. Notes Manager also leads on ads (none vs shown). Lighting Calculations's advantage is update cadence (every 5 weeks vs every 14 months). On price, 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. Notes Manager asks for nothing beyond the download.

Lighting Calculations ships an update every 5 weeks, Notes Manager every 14 months. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Lighting Calculations | Notes Manager |
| --- | --- | --- |
| 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 14 months |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 26 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) | [Facundo Frastas](https://appshunter.io/developer/1690477133) |

## What reviewers say

### Lighting Calculations

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

This app transforms your smartphone into a comprehensive lighting design tool. It offers advanced calculations for room lighting, LED analysis, and efficiency, alongside quick conversions and essential technical resources. Ensure your lighting projects meet all standards and optimize energy usage.

**Highlights:** Room lighting design calculations, LED analysis (lifespan, photobiological risk), Energy efficiency calculations, Photometric code decoding, Lumen, Lux, Candela, Watt conversions, Normative requirements and technical guides, Light quality metrics (CRI, UGR)

**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 |


### Notes Manager

[App page](https://appshunter.io/ios/app/notes-manager/id6449952639)

**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 Notes Manager free?

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

### Do Lighting Calculations or Notes Manager have ads?

Lighting Calculations shows ads; Notes Manager does not.

### Which is updated more often, Lighting Calculations or Notes Manager?

Lighting Calculations ships an update every 5 weeks, and Notes Manager every 14 months. Most recently, Lighting Calculations was updated on November 1, 2026 and Notes Manager on October 25, 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.*