# W19 vs SolarAI Pro

The clearest difference is update cadence: SolarAI Pro at every 3 months against W19's every 7 months. W19's advantage is iOS requirement (8.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

W19 ships an update every 7 months, SolarAI Pro every 3 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | W19 | SolarAI Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/w19/id1115990407/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 69 MB | 43 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [传林 方](https://appshunter.io/developer/699727053) | [Solar AI Technologies LLC](https://appshunter.io/developer/1715776962) |

## What reviewers say

### W19

[App page](https://appshunter.io/ios/app/w19/id1115990407)

Control home appliances remotely using your smartphone. This application works in conjunction with specific hardware to provide comprehensive home automation.

**Highlights:** Remote appliance control, Works with W19 Alarmed hardware, Networked control from anywhere, Home appliance management

**Features:** macOS Compatibility

**In-app purchases:** none


### SolarAI Pro

[App page](https://appshunter.io/ios/app/solarai-pro/id6758371207)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is W19 free?

W19 is free to download, with no in-app purchases.

### Is SolarAI Pro free?

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

### Do W19 or SolarAI Pro have ads?

Neither W19 nor SolarAI Pro shows ads.

### Which is updated more often, W19 or SolarAI Pro?

W19 ships an update every 7 months, and SolarAI Pro every 3 months. Most recently, W19 was updated on November 2, 2026 and SolarAI Pro on October 31, 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.*