# SmartBeam® Luminance Camera vs Digital_Diary

The clearest difference is update cadence: Digital_Diary at every 2 days against SmartBeam® Luminance Camera's every 3 weeks. Digital_Diary also leads on device support (4 vs 2) and iOS requirement (13.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. SmartBeam® Luminance Camera sells 3 in-app purchases, starting at $1.99 per month and Digital_Diary sells 2 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

SmartBeam® Luminance Camera ships an update every 3 weeks, Digital_Diary every 2 days. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | SmartBeam® Luminance Camera | Digital_Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (6 ratings)](https://appshunter.io/ios/app/smartbeam-luminance-camera/id1449237565/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 9 MB | 3 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [TEYEO LLC](https://appshunter.io/developer/1620037156) | [Shabbir Ahmed](https://appshunter.io/developer/1083166021) |

## What reviewers say

### SmartBeam® Luminance Camera

[App page](https://appshunter.io/ios/app/smartbeam-luminance-camera/id1449237565)

This app transforms your iOS device into a professional luminance camera, enabling quick assessments of surface brightness. It uses a calibrated false-color filter to visualize light variations, aiding lighting designers, architects, and engineers. The tool also allows for saving and sharing images for reports and collaboration.

**Highlights:** Surface and point luminance measurement, Live false color display, Luminance selfie mode, Multiple luminance scales (Cd/m2, cd/ft2, fl), Auto and manual exposure control, Image sharing and saving

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Annual Subscription | $19.99 | per year |
| Pro Version | $14.99 | one-time |


### Digital_Diary

[App page](https://appshunter.io/ios/app/digital-diary/id6478133027)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Auto-Renewing Subs | $19.99 | per month |
| Annual Auto-Renewing Subs | $24.99 | per year |


## Frequently asked questions

### Is SmartBeam® Luminance Camera free?

SmartBeam® Luminance Camera is free to download, with in-app purchases available.

### Is Digital_Diary free?

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

### Do SmartBeam® Luminance Camera or Digital_Diary have ads?

Neither SmartBeam® Luminance Camera nor Digital_Diary shows ads.

### Which is updated more often, SmartBeam® Luminance Camera or Digital_Diary?

SmartBeam® Luminance Camera ships an update every 3 weeks, and Digital_Diary every 2 days. Most recently, SmartBeam® Luminance Camera was updated on October 1, 2026 and Digital_Diary on October 10, 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.*