# Light Meter vs SANlight

The clearest difference is in-app purchases: SANlight at none against Light Meter's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Light Meter sells 4 in-app purchases, starting at $3.99 per month. SANlight asks for nothing beyond the download.

Light Meter ships an update every 10 months, SANlight every 6 months. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Light Meter | SANlight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (116 ratings)](https://appshunter.io/ios/app/light-meter-lux-525-pro/id1636117065/reviews)** | — |
| Number of ratings | **116** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 6 months** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 32 MB |
| Requires iOS | 15.5 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andrey Ivankin](https://appshunter.io/developer/1615973131) | [Martin Anker](https://appshunter.io/developer/1658513710) |

## What reviewers say

### Light Meter

[App page](https://appshunter.io/ios/app/light-meter-lux-525-pro/id1636117065)

This app functions as a precise and user-friendly light meter using your phone's built-in sensors. It measures illuminance, color temperature, PPFD/PAR, DLI, and luminous flux in real-time. It also includes a calculator for various illumination parameters and allows sharing or saving of measurements.

**Highlights:** Real-time illuminance measurement, Color temperature measurement, PPFD/PAR and DLI calculation, Built-in illumination calculator, Share and save measurements, No additional equipment needed

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Subscription | $3.99 | per month |
| Premium Monthly Subscription | $4.99 | per month |
| Premium Lifetime Subscription | $19.99 | one-time |
| Premium Lifetime Subscription | $29.99 | one-time |


### SANlight

[App page](https://appshunter.io/ios/app/sanlight/id1658513708)

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

**In-app purchases:** none


## Frequently asked questions

### Is Light Meter free?

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

### Is SANlight free?

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

### Do Light Meter or SANlight have ads?

Neither Light Meter nor SANlight shows ads.

### Which is updated more often, Light Meter or SANlight?

Light Meter ships an update every 10 months, and SANlight every 6 months. Most recently, Light Meter was updated on October 8, 2026 and SANlight on October 9, 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.*