# Suntain vs Light Junkie

The clearest difference is in-app purchases: Suntain at none against Light Junkie's 1. Suntain also leads on iOS requirement (12.0 vs 26.2). Light Junkie's advantage is update cadence (every 2 weeks vs every 4 months). On price, review sentiment, ads and monetization model there is nothing between them.

Both are free to download. Light Junkie sells 1 one-off in-app purchase. Suntain asks for nothing beyond the download.

Suntain ships an update every 4 months, Light Junkie every 2 weeks. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Suntain | Light Junkie |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/light-junkie/id6756667343/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 54 MB | 6 MB |
| Requires iOS | **12.0** | 26.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Jacques DUMAREST](https://appshunter.io/developer/1748816172) | [Krystian Kozerawski](https://appshunter.io/developer/1316602430) |

## What reviewers say

### Suntain

[App page](https://appshunter.io/ios/app/suntain/id6737068522)

Visualize the sun's position and trajectory based on your location and date. Get sunrise and sunset times, including when the sun appears or disappears behind terrain. Access annual data on daylight and sunshine duration.

**Highlights:** Sun position and trajectory visualization, Horizon sunrise and sunset times, Sunrise/sunset behind terrain, Annual sunrise/sunset data, Daylight and sunshine duration, Sunshine duration analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### Light Junkie

[App page](https://appshunter.io/ios/app/light-junkie/id6756667343)

Track sunrise, sunset, dawn, and dusk times with a visual arc and daylight duration. Plan outdoor activities with a 7-day forecast and manage multiple locations. Features home screen widgets and iCloud syncing.

**Highlights:** Sunrise and sunset times, Dawn and dusk times, Daylight duration tracking, 7-day forecast, Multiple location support, Home screen widgets, iCloud syncing

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add more locations | $1.99 | one-time |


## Frequently asked questions

### Is Suntain free?

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

### Is Light Junkie free?

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

### Do Suntain or Light Junkie have ads?

Neither Suntain nor Light Junkie shows ads.

### Which is updated more often, Suntain or Light Junkie?

Suntain ships an update every 4 months, and Light Junkie every 2 weeks. Most recently, Suntain was updated on October 19, 2026 and Light Junkie on October 24, 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.*