# Sunset Predictions vs Sunio

The clearest difference is in-app purchases: Sunio at none against Sunset Predictions's 3. Sunio also leads on update cadence (every 5 days vs fortnightly). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Sunset Predictions sells 3 in-app purchases, starting at $5.99 per 7 days. Sunio asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Sunset Predictions against 4.4 for Sunio. Both are backed by a comparable volume of ratings — 18 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Sunset Predictions ships an update fortnightly, Sunio every 5 days. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Sunset Predictions | Sunio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (18 ratings)](https://appshunter.io/ios/app/sunset-predictions-sunix/id6743409543/reviews)** | [4.4 (9 ratings)](https://appshunter.io/ios/app/sunio-sun-tracker-3d-shadow/id6753144445/reviews) |
| Number of ratings | **18** | 9 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Freemium | **Free** |
| Size | 33 MB | 34 MB |
| Requires iOS | **17.0** | 18 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nadiia Martyniuk](https://appshunter.io/developer/1757187452) | [Daniel Slave](https://appshunter.io/developer/1126366753) |

## What reviewers say

### Sunset Predictions

[App page](https://appshunter.io/ios/app/sunset-predictions-sunix/id6743409543)

This app provides precise sunrise and sunset times, along with quality forecasts for golden and blue hours. Plan your photography, nature outings, or daily routines with customizable alerts and global location support.

**Highlights:** Sunrise and sunset times for any location, Sunrise and sunset quality forecast, Golden hour and blue hour information, Customizable reminders and notifications, Widgets for home screen access, Sun position and direction map

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $5.99 | per 7 days |
| Yearly Plan | $18.99 | per year |
| Lifetime Plan | $59.99 | one-time |


### Sunio

[App page](https://appshunter.io/ios/app/sunio-sun-tracker-3d-shadow/id6753144445)

Visualize the sun's path and its impact on terrain in 3D. Plan photography, evaluate property sunlight, and optimize solar panel placement with accurate, animated lighting and shadow simulations.

**Highlights:** 3D animated sunlight and shadow simulation, Augmented Reality sun path overlay, Precise golden hour and twilight times, Property sun exposure analysis, Solar panel optimization tools, Interactive time scrubbing

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

**In-app purchases:** none


## Frequently asked questions

### Is Sunset Predictions free?

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

### Is Sunio free?

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

### Which has better reviews, Sunset Predictions or Sunio?

Sunset Predictions is rated higher. Sunset Predictions averages 4.5 out of 5 from 18 ratings, while Sunio averages 4.4 from 9 ratings.

### Do Sunset Predictions or Sunio have ads?

Neither Sunset Predictions nor Sunio shows ads.

### Which is updated more often, Sunset Predictions or Sunio?

Sunset Predictions ships an update fortnightly, and Sunio every 5 days. Most recently, Sunset Predictions was updated on October 8, 2026 and Sunio on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*