# Sunline vs K12 Class

The clearest difference is update cadence: K12 Class at every 2 months against Sunline's every 4 months. Sunline's advantage is iOS requirement (11.1 vs 13.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Sunline ships an update every 4 months, K12 Class every 2 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Sunline | K12 Class |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (6 ratings)](https://appshunter.io/ios/app/sunline/id1494807667/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 7 MB | 20 MB |
| Requires iOS | **11.1** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Drift Innovation Ltd](https://appshunter.io/developer/579007701) | [ShenZhen Netinfo Technology Co., Ltd.](https://appshunter.io/developer/1439296368) |

## What reviewers say

### Sunline

[App page](https://appshunter.io/ios/app/sunline/id1494807667)

This device combines inverter, solar charger, and battery charger functions for portable, uninterruptible power. Its LCD display allows easy configuration of charging current, power source priority, and input voltage.

**Highlights:** Multi-function inverter/charger, Solar charger capability, Battery charger capability, Uninterruptible power support, Comprehensive LCD display, User-configurable settings

**Features:** macOS Compatibility

**In-app purchases:** none


### K12 Class

[App page](https://appshunter.io/ios/app/k12-class/id6471573229)

Facilitates cross-platform screen mirroring and interaction between devices. Enables enhanced interactivity and can be used alongside other collaboration tools.

**Highlights:** Cross-platform connectivity, Two-way screen mirroring, Enhanced interactivity, Simultaneous use with IdeaHub

**In-app purchases:** none


## Frequently asked questions

### Is Sunline free?

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

### Is K12 Class free?

K12 Class is free to download, with no in-app purchases.

### Do Sunline or K12 Class have ads?

Neither Sunline nor K12 Class shows ads.

### Which is updated more often, Sunline or K12 Class?

Sunline ships an update every 4 months, and K12 Class every 2 months. Most recently, Sunline was updated on November 3, 2026 and K12 Class on November 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.*