# SunGraph vs Luminos Pro

The clearest difference is rating: Luminos Pro at 4.7 against SunGraph's 3.1. Luminos Pro also leads on update cadence (every 4 weeks vs every 4 months) and ratings volume (251 vs 12). SunGraph's advantage is in-app purchases (none vs 5) and iOS requirement (13.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Luminos Pro sells 5 in-app purchases, starting at $1.99 per month. SunGraph asks for nothing beyond the download.

Luminos Pro holds the better App Store score, 4.7 against 3.1. That said, the two scores are not equally well evidenced: Luminos Pro has 251 ratings behind it against 12, 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 70% of Luminos Pro's.

SunGraph ships an update every 4 months, Luminos Pro every 4 weeks. The most recent releases landed on September 18, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | SunGraph | Luminos Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (12 ratings)](https://appshunter.io/ios/app/sungraph/id321534034/reviews) | **[4.7 (251 ratings)](https://appshunter.io/ios/app/luminos-pro/id1458648031/reviews)** |
| Number of ratings | 12 | **251** |
| Positive reviews | 56.8% of reviews | **69.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Monetization | **Free** | Freemium |
| Size | 11 MB | 1.8 GB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Tremont Air, LLC](https://appshunter.io/developer/309321587) | [Wobbleworks LLC](https://appshunter.io/developer/404664339) |

## 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


### Luminos Pro

[App page](https://appshunter.io/ios/app/luminos-pro/id1458648031)

Explore the cosmos with an all-in-one astronomy companion. Discover stars, planets, galaxies, and celestial events with extensive databases and interactive 3D models. Enhance your stargazing with augmented reality, virtual reality, and personalized viewing recommendations.

**Highlights:** Star gazing and 3D galaxy exploration, Extensive databases of celestial objects, On-device and custom recommendations, Motion tracking with AR and VR modes, 3D flight to satellites and spacecraft, Weather forecasts for stargazing, Telescope control and observation lists

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $1.99 | per month |
| Quarterly subscription | $3.99 | per 3 months |
| Yearly subscription | $12.99 | per year |
| Lifetime pass | $24.99 | one-time |
| Lifetime pass | $39.99 | one-time |

**What reviewers like**

- ✨ Comprehensive features
- 🌟 Beautifully implemented
- 🚀 Smooth and detailed map
- 👍 User-friendly interface
- ⭐ Excellent customer service

**What reviewers complain about**

- 💸 Features locked behind subscription
- 📉 App devolving over time
- 🔒 Lifetime memberships feel like a trap
- 🔄 Satellite updates not working
- 💸 Paid features now subscription only

**Reported bugs**

- Satellite updates don't work
- Deep sky objects not showing
- App crashes when adding notes
- Old notes disappeared after update
- App keeps going black during exploration

**Requested features**

- Discount for lifetime license
- Ability to transfer FOV and camera rotation to NINA
- Ability to add pictures of viewed places and store them
- Store and recall settings
- Update for iOS 16 compatibility


## Frequently asked questions

### Is SunGraph free?

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

### Is Luminos Pro free?

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

### Which has better reviews, SunGraph or Luminos Pro?

Luminos Pro is rated higher. SunGraph averages 3.1 out of 5 from 12 ratings, while Luminos Pro averages 4.7 from 251 ratings.

### Do SunGraph or Luminos Pro have ads?

Neither SunGraph nor Luminos Pro shows ads.

### Which is updated more often, SunGraph or Luminos Pro?

SunGraph ships an update every 4 months, and Luminos Pro every 4 weeks. Most recently, SunGraph was updated on September 18, 2026 and Luminos Pro on September 27, 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.*