# SunOnTrack vs mySigen

The clearest difference is price: mySigen at Free against SunOnTrack's $9.99. mySigen also leads on update cadence (every 2 weeks vs every 2 months). SunOnTrack's advantage is rating (4.6 vs 3.8) and review sentiment (80% vs 45%). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

mySigen 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 3.8. That said, the two scores are not equally well evidenced: SunOnTrack has 151 ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 80% of SunOnTrack's written reviews are positive against 45% of mySigen's.

SunOnTrack ships an update every 2 months, mySigen every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | SunOnTrack | mySigen |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.6 (151 ratings)](https://appshunter.io/ios/app/sunontrack-sun-path-and-shadows/id1610305853/reviews)** | [3.8 (22 ratings)](https://appshunter.io/ios/app/mysigen/id6446836171/reviews) |
| Number of ratings | **151** | 22 |
| Positive reviews | **80.0% of reviews** | 44.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 11 MB | 415 MB |
| Requires iOS | 16.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Moder](https://appshunter.io/developer/1610305855) | [Sigenergy Technology Co., Ltd.](https://appshunter.io/developer/1696875419) |

## 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


### mySigen

[App page](https://appshunter.io/ios/app/mysigen/id6446836171)

Manage your Sigenergy System with this app. It offers real-time energy monitoring, data graphs, and control over your home's energy flow. Installers can benefit from efficient commissioning and system management tools.

**Highlights:** Real-time energy monitoring, Device control, Data graphs, System configuration, Installer features, System commissioning

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is SunOnTrack free?

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

### Is mySigen free?

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

### Which has better reviews, SunOnTrack or mySigen?

SunOnTrack is rated higher. SunOnTrack averages 4.6 out of 5 from 151 ratings, while mySigen averages 3.8 from 22 ratings.

### Do SunOnTrack or mySigen have ads?

Neither SunOnTrack nor mySigen shows ads.

### Which is updated more often, SunOnTrack or mySigen?

SunOnTrack ships an update every 2 months, and mySigen every 2 weeks. Most recently, SunOnTrack was updated on October 24, 2026 and mySigen 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.*