# SunOnTrack vs EG4 EX

The clearest difference is price: EG4 EX at Free against SunOnTrack's $9.99. EG4 EX also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (11.0 vs 16.0). SunOnTrack's advantage is rating (4.6 vs 2.3) and ratings volume (151 vs 3). On ads, in-app purchases and device support there is nothing between them.

EG4 EX is free to download; SunOnTrack costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SunOnTrack holds the better App Store score, 4.6 against 2.3. That said, the two scores are not equally well evidenced: SunOnTrack has 151 ratings behind it against 3, so its average is the more settled of the two.

SunOnTrack ships an update every 2 months, EG4 EX every 2 weeks. The most recent releases landed on November 12, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | SunOnTrack | EG4 EX |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.6 (151 ratings)](https://appshunter.io/ios/app/sunontrack-sun-path-and-shadows/id1610305853/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/eg4-ex/id6449516447/reviews) |
| Number of ratings | **151** | 3 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 11 MB | 91 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Moder](https://appshunter.io/developer/1610305855) | [Naveen Tera](https://appshunter.io/developer/1683496893) |

## What reviewers say

### SunOnTrack

[App page](https://appshunter.io/ios/app/sunontrack-sun-path-and-shadows/id1610305853)

Plan sunlight, sun position, and shadows accurately on a map or in AR. Visualize sun paths, elevation, and shadow lengths for photography, real estate, gardening, and photovoltaics.

**Highlights:** Sun path and position calculation, Shadow simulation and length calculation, Augmented Reality (AR) visualization, Map-based planning, Sunlight amount estimation, Seasonal shadow differences

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and intuitive
- ☀️ Accurate sun path simulation
- 💡 Useful for solar planning
- 🚀 Saves time and effort
- ✅ Works as described

**What reviewers complain about**

- 🐛 Shadows are static
- 🤔 No trial version available
- 🗺️ Outdated map data
- 🤷 No clear instructions or tutorial
- 📱 AR not working on some devices

**Reported bugs**

- Shadows are static and don’t change with time of day
- AR 3D error required sensor failed on iPhone 13 Pro
- Map is outdated
- Timeline overlaps the angle circle
- Cannot select future dates in the calendar on iPhone 13

**Requested features**

- Add wind data
- Allow account creation and sharing simulations online
- Improve precision of element placement
- Add a tutorial or user tips
- Enable future date selection in calendar


### EG4 EX

[App page](https://appshunter.io/ios/app/eg4-ex/id6449516447)

Monitor your energy storage machine's status in real-time with this mobile application. It offers convenient and quick access to data, featuring clear visualizations of both current and historical information. The software is designed for efficient data transfer, minimizing internet traffic.

**Highlights:** Real-time status monitoring, Historical data display, Data visualization charts, Low internet traffic usage, Multi-dimensional data display

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SunOnTrack free?

SunOnTrack costs $9.99, with no in-app purchases.

### Is EG4 EX free?

EG4 EX is free to download, with no in-app purchases.

### Which has better reviews, SunOnTrack or EG4 EX?

SunOnTrack is rated higher. SunOnTrack averages 4.6 out of 5 from 151 ratings, while EG4 EX averages 2.3 from 3 ratings.

### Do SunOnTrack or EG4 EX have ads?

Neither SunOnTrack nor EG4 EX shows ads.

### Which is updated more often, SunOnTrack or EG4 EX?

SunOnTrack ships an update every 2 months, and EG4 EX every 2 weeks. Most recently, SunOnTrack was updated on November 12, 2026 and EG4 EX on November 3, 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.*