# Lighting Calculations vs 9amla

The clearest difference is ads: 9amla at none against Lighting Calculations's shown. 9amla also leads on update cadence (every 11 days vs every 5 weeks) and rating (5.0 vs 4.8). Lighting Calculations's advantage is ratings volume (6 vs 1). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Lighting Calculations sells 3 in-app purchases, starting at $1.99 per 3 months and 9amla sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

9amla holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Lighting Calculations has 6 ratings behind it against 1, so its average is the more settled of the two.

Lighting Calculations ships an update every 5 weeks, 9amla every 11 days. The most recent releases landed on October 3, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Lighting Calculations | 9amla |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (6 ratings)](https://appshunter.io/ios/app/lighting-calculations/id1021580336/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/9amla/id1663019014/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 11 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 32 MB | 48 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Egal Net di Ettore Gallina](https://appshunter.io/developer/993232047) | [Fahad Alyaqoub](https://appshunter.io/developer/1604577535) |

## 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) | $89.99 | one-time |


### 9amla

[App page](https://appshunter.io/ios/app/9amla/id1663019014)

This platform allows users to organize and refine upcoming events, particularly those related to sports and gyms. It provides a space to manage and prepare for various activities.

**Highlights:** Event organization, Event refinement, Sports event management, Gym event planning, Upcoming event management

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gift Package 10 Ads | $2.99 | one-time |
| Bronze 5 Ads | $8.99 | one-time |
| Silver 10 Ads | $14.99 | one-time |
| Gold 20 Ads | $29.99 | one-time |
| Platinum 50 Ads | $59.99 | one-time |


## Frequently asked questions

### Is Lighting Calculations free?

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

### Is 9amla free?

9amla is free to download, with in-app purchases available.

### Which has better reviews, Lighting Calculations or 9amla?

9amla is rated higher. Lighting Calculations averages 4.8 out of 5 from 6 ratings, while 9amla averages 5.0 from 1 ratings.

### Do Lighting Calculations or 9amla have ads?

Lighting Calculations shows ads; 9amla does not.

### Which is updated more often, Lighting Calculations or 9amla?

Lighting Calculations ships an update every 5 weeks, and 9amla every 11 days. Most recently, Lighting Calculations was updated on October 3, 2026 and 9amla on September 29, 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.*