# Luminous vs DayLength

The clearest difference is in-app purchases: DayLength at none against Luminous's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Luminous sells 3 in-app purchases, starting at $2.99 per month. DayLength asks for nothing beyond the download.

## The numbers

| Metric | Luminous | DayLength |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/luminous-uv-index-tracking/id6746096003/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | Freemium | — |
| Size | 15 MB | 2 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Trevor Grady](https://appshunter.io/developer/1441211990) | [PIERO BOZZOLO](https://appshunter.io/developer/6774726466) |

## What reviewers say

### Luminous

[App page](https://appshunter.io/ios/app/luminous-uv-index-tracking/id6746096003)

This app tracks real-time UV levels and your daily sun exposure to help you protect your skin and stay healthy. It offers smart notifications and integrates with Apple Health for comprehensive wellness tracking.

**Highlights:** Real-time UV measurement, Automatic exposure tracking, Smart UV notifications, Apple Health integration, Winter sun exposure tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $2.99 | per month |
| Luminous Plus Annual | $12.99 | per year |
| Annual | $12.99 | per year |


### DayLength

[App page](https://appshunter.io/ios/app/daylength/id6776148307)

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

**In-app purchases:** none


## Frequently asked questions

### Is Luminous free?

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

### Is DayLength free?

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

### Do Luminous or DayLength have ads?

Neither Luminous nor DayLength shows ads.

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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.*