# KG Serials vs Solar App

The clearest difference is rating: KG Serials at 3.6 against Solar App's 3.1. KG Serials also leads on iOS requirement (9.0 vs 12.0). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KG Serials holds the better App Store score, 3.6 against 3.1. Both are backed by a comparable volume of ratings — 8 and 14 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

KG Serials ships an update monthly, Solar App every 3 weeks. The most recent releases landed on October 24, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | KG Serials | Solar App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (8 ratings)](https://appshunter.io/ios/app/kg-serials/id1556594835/reviews)** | [3.1 (14 ratings)](https://appshunter.io/ios/app/solar-app/id6444056453/reviews) |
| Number of ratings | 8 | **14** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 30 MB | 90 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Hangzhou Junce Instruments Co., Ltd.](https://appshunter.io/developer/1535583983) | [疆 郭](https://appshunter.io/developer/1455940350) |

## What reviewers say

### KG Serials

[App page](https://appshunter.io/ios/app/kg-serials/id1556594835)

This utility measures electrical parameters like voltage, current, and power. It offers multiple protection functions and real-time battery monitoring on a color LCD. The app also supports data export and remote control via mobile or PC.

**Highlights:** Measures voltage, current, power, capacity, Multiple protection functions (over/under voltage, over current), Real-time battery monitoring, Color LCD display, Voltage and current curve display, Mobile app and PC control, Firmware updates

**Features:** macOS Compatibility

**In-app purchases:** none


### Solar App

[App page](https://appshunter.io/ios/app/solar-app/id6444056453)

Connect and manage your solar energy system components, including controllers, inverters, and lithium batteries. Monitor your system's performance and ensure optimal energy generation.

**Highlights:** Connects solar controllers, Connects inverters, Connects lithium batteries, Device management, System monitoring

**In-app purchases:** none


## Frequently asked questions

### Is KG Serials free?

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

### Is Solar App free?

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

### Which has better reviews, KG Serials or Solar App?

KG Serials is rated higher. KG Serials averages 3.6 out of 5 from 8 ratings, while Solar App averages 3.1 from 14 ratings.

### Do KG Serials or Solar App have ads?

Neither KG Serials nor Solar App shows ads.

### Which is updated more often, KG Serials or Solar App?

KG Serials ships an update monthly, and Solar App every 3 weeks. Most recently, KG Serials was updated on October 24, 2026 and Solar App on October 4, 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.*