# Luminous vs Halcyon Forecast

The clearest difference is price: Luminous at Free against Halcyon Forecast's $0.99. Luminous also leads on rating (3.5 vs 3.0). Halcyon Forecast's advantage is in-app purchases (none vs 3) and update cadence (every 3 days vs every 10 days). On review sentiment, ratings volume, ads and device support there is nothing between them.

Luminous is free to download; Halcyon Forecast costs $0.99 up front. Luminous sells 3 in-app purchases, starting at $2.99 per month. Halcyon Forecast asks for nothing beyond the download.

Luminous holds the better App Store score, 3.5 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

Luminous ships an update every 10 days, Halcyon Forecast every 3 days. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Luminous | Halcyon Forecast |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/luminous-uv-index-tracking/id6746096003/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/halcyon-forecast/id6801256233/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 3 days** |
| Monetization | **Freemium** | Paid |
| Best chart rank | — | **#74** |
| Size | 15 MB | 29 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Trevor Grady](https://appshunter.io/developer/1441211990) | [Cory Baxter](https://appshunter.io/developer/6791256394) |

## 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 |


### Halcyon Forecast

[App page](https://appshunter.io/ios/app/halcyon-forecast/id6801256233)

**Currently charting:** #74 Top Paid · Weather (US App Store)

Experience weather forecasts with a nostalgic twist. This app offers classic, skeuomorphic widgets for your iOS Home Screen, combined with a visually immersive weather app that reflects current conditions.

**Highlights:** Skeuomorphic clock and weather widgets, Dynamic, atmospheric weather backgrounds, Immersive weather centerpiece with animations, Hyper-local forecasting with timeline, Severe weather and rain alerts, Detailed metric cards, Dark mode optimization

**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 Halcyon Forecast free?

Halcyon Forecast costs $0.99, with no in-app purchases.

### Which has better reviews, Luminous or Halcyon Forecast?

Luminous is rated higher. Luminous averages 3.5 out of 5 from 2 ratings, while Halcyon Forecast averages 3.0 from 2 ratings.

### Do Luminous or Halcyon Forecast have ads?

Neither Luminous nor Halcyon Forecast shows ads.

### Which is updated more often, Luminous or Halcyon Forecast?

Luminous ships an update every 10 days, and Halcyon Forecast every 3 days. Most recently, Luminous was updated on October 30, 2026 and Halcyon Forecast on November 8, 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.*