# PresentationOS vs Lux Meter

The clearest difference is rating: Lux Meter at 5.0 against PresentationOS's 4.0. Lux Meter also leads on ratings volume (9 vs 1). PresentationOS's advantage is in-app purchases (none vs 3) and update cadence (monthly vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lux Meter sells 3 in-app purchases, starting at $2.99 per 7 days. PresentationOS asks for nothing beyond the download.

Lux Meter holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Lux Meter has 9 ratings behind it against 1, so its average is the more settled of the two.

PresentationOS ships an update monthly, Lux Meter every 5 months. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | PresentationOS | Lux Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/presentationos/id1260906979/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/lux-meter-light-camera-cine/id6751212956/reviews)** |
| Number of ratings | 1 | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | **Free** | Freemium |
| Size | 164 MB | 38 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EMBLEM LLC](https://appshunter.io/developer/1084953360) | [CODIGITAL SOLUTIONS](https://appshunter.io/developer/1829802387) |

## What reviewers say

### PresentationOS

[App page](https://appshunter.io/ios/app/presentationos/id1260906979)

This platform centralizes sales and marketing materials, allowing businesses to engage audiences across various screens. It offers features like content search, file tagging, and usage analytics to optimize marketing efforts and sales processes.

**Highlights:** Content search and file tagging, Device assignment and group permissions, Usage analytics for marketing insights, Offline content access, 3D module for product showcase, Training module with courses and questionnaires, CRM integration for data sharing

**Features:** macOS Compatibility

**In-app purchases:** none


### Lux Meter

[App page](https://appshunter.io/ios/app/lux-meter-light-camera-cine/id6751212956)

This app transforms your iPhone into a professional light and exposure meter. It provides real-time light measurements with EV feedback, allowing photographers and filmmakers to achieve perfect exposure. Advanced features like spot metering and histograms offer professional-grade control.

**Highlights:** Real-time light measurement, Live EV feedback, Save and compare exposure history, Spot metering, Histograms and exposure zebras, Flexible subscription plans

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $2.99 | per 7 days |
| Monthly Pro | $4.99 | per month |
| Anual Pro | $29.99 | per year |


## Frequently asked questions

### Is PresentationOS free?

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

### Is Lux Meter free?

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

### Which has better reviews, PresentationOS or Lux Meter?

Lux Meter is rated higher. PresentationOS averages 4.0 out of 5 from 1 ratings, while Lux Meter averages 5.0 from 9 ratings.

### Do PresentationOS or Lux Meter have ads?

Neither PresentationOS nor Lux Meter shows ads.

### Which is updated more often, PresentationOS or Lux Meter?

PresentationOS ships an update monthly, and Lux Meter every 5 months. Most recently, PresentationOS was updated on October 24, 2026 and Lux Meter on October 18, 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.*