# SunOnTrack vs Overkill Solar

The clearest difference is price: Overkill Solar at Free against SunOnTrack's $9.99. Overkill Solar also leads on review sentiment (100% vs 83%) and iOS requirement (13.4 vs 16.0). SunOnTrack's advantage is ratings volume (148 vs 16). On rating, update cadence, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.6 for SunOnTrack against 4.7 for Overkill Solar. That said, the two scores are not equally well evidenced: SunOnTrack has 148 ratings behind it against 16, so its average is the more settled of the two. Written reviews are what separate them: 83% of SunOnTrack's written reviews are positive against 100% of Overkill Solar's.

SunOnTrack ships an update every 2 months, Overkill Solar every 4 months. The most recent releases landed on September 23, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | SunOnTrack | Overkill Solar |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.6 (148 ratings)](https://appshunter.io/ios/app/sunontrack-sun-path-and-shadows/id1610305853/reviews) | **[4.7 (16 ratings)](https://appshunter.io/ios/app/overkill-solar/id6444233824/reviews)** |
| Number of ratings | **148** | 16 |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Paid | **Free** |
| Size | 11 MB | 21 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Moder](https://appshunter.io/developer/1610305855) | [Overkill Solar LLC](https://appshunter.io/developer/1653276724) |

## 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


### Overkill Solar

[App page](https://appshunter.io/ios/app/overkill-solar/id6444233824)

This app connects to a solar battery management system to provide detailed monitoring and control. Users can track cell voltage, capacity, current, and manage charging/discharging ports. It also offers advanced configuration options for calibration, balancing, and protection settings.

**Highlights:** Monitor cell voltage and capacity, Control charging and discharging ports, Calibrate voltage and current, Configure balancer and protection values, Log voltage, current, and power, Monitor BMS alarms and temperature

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SunOnTrack free?

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

### Is Overkill Solar free?

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

### Which has better reviews, SunOnTrack or Overkill Solar?

Overkill Solar is rated higher. SunOnTrack averages 4.6 out of 5 from 148 ratings, while Overkill Solar averages 4.7 from 16 ratings.

### Do SunOnTrack or Overkill Solar have ads?

Neither SunOnTrack nor Overkill Solar shows ads.

### Which is updated more often, SunOnTrack or Overkill Solar?

SunOnTrack ships an update every 2 months, and Overkill Solar every 4 months. Most recently, SunOnTrack was updated on September 23, 2026 and Overkill Solar on August 18, 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.*