# SunGraph vs Solar Watch

The clearest difference is rating: Solar Watch at 4.8 against SunGraph's 3.2. Solar Watch also leads on review sentiment (78% vs 57%) and ratings volume (117 vs 14). SunGraph's advantage is in-app purchases (none vs 2) and device support (4 vs 2). On price, update cadence and ads there is nothing between them.

Both are free to download. Solar Watch sells 2 in-app purchases, starting at $5.99 per 6 months. SunGraph asks for nothing beyond the download.

Solar Watch holds the better App Store score, 4.8 against 3.2. That said, the two scores are not equally well evidenced: Solar Watch has 117 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 57% of SunGraph's written reviews are positive against 78% of Solar Watch's.

SunGraph ships an update every 4 months, Solar Watch every 2 months. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | SunGraph | Solar Watch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (14 ratings)](https://appshunter.io/ios/app/sungraph/id321534034/reviews) | **[4.8 (117 ratings)](https://appshunter.io/ios/app/solar-watch/id1321127425/reviews)** |
| Number of ratings | 14 | **117** |
| Positive reviews | 56.8% of reviews | **78.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 39 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tremont Air, LLC](https://appshunter.io/developer/309321587) | [Zuzana Eskinasi](https://appshunter.io/developer/926491439) |

## What reviewers say

### SunGraph

[App page](https://appshunter.io/ios/app/sungraph/id321534034)

Calculate sunrise and sunset times for any location globally and any day of the year. Explore earliest/latest times, the equation of time, and sun inclination. Visualize the sun's position on Earth.

**Highlights:** Sunrise and sunset times worldwide, Earliest and latest sunrise/sunset, Equation of time display, Sun inclination at transit, World view of sun's position, User location database

**In-app purchases:** none


### Solar Watch

[App page](https://appshunter.io/ios/app/solar-watch/id1321127425)

Visualize the sun and moon's paths in augmented reality and on interactive 3D maps. Access detailed data tables for celestial events, shadow simulations, and more. Ideal for professionals and enthusiasts needing precise solar and lunar information.

**Highlights:** Augmented Reality solar and lunar path projection, Multifunctional 2D/3D map visualization, Comprehensive data tables for celestial events, Interactive 3D shadow simulator, Sunrise, sunset, golden hour, and dusk times, Lunar phases and moonrise/moonset times

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Version | $5.99 | per 6 months |
| Premium Version | $11.99 | one-time |


## Frequently asked questions

### Is SunGraph free?

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

### Is Solar Watch free?

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

### Which has better reviews, SunGraph or Solar Watch?

Solar Watch is rated higher. SunGraph averages 3.2 out of 5 from 14 ratings, while Solar Watch averages 4.8 from 117 ratings.

### Do SunGraph or Solar Watch have ads?

Neither SunGraph nor Solar Watch shows ads.

### Which is updated more often, SunGraph or Solar Watch?

SunGraph ships an update every 4 months, and Solar Watch every 2 months. Most recently, SunGraph was updated on October 23, 2026 and Solar Watch on October 21, 2026.

---

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