# ATSolar vs Knox Digital

The clearest difference is ads: Knox Digital at none against ATSolar's shown. ATSolar's advantage is iOS requirement (13.0 vs 15.5). On price, update cadence, 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.

ATSolar ships an update every 9 days, Knox Digital fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ATSolar | Knox Digital |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/atsolar/id1080077994/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Ad-supported | — |
| Size | 37 MB | 110 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shandong Aotai Electric Co. Ltd](https://appshunter.io/developer/973393830) | [Muhammad Aitizaz](https://appshunter.io/developer/1886262677) |

## What reviewers say

### ATSolar

[App page](https://appshunter.io/ios/app/atsolar/id1080077994)

Monitor power plant performance in real-time. Track key parameters and gain insights into your energy generation. Ideal for businesses and individuals managing solar energy systems.

**Highlights:** Real-time parameter monitoring, Power plant performance tracking, Energy generation insights, Business and individual use, Solar energy system management

**Features:** macOS Compatibility

**In-app purchases:** none


### Knox Digital

[App page](https://appshunter.io/ios/app/knox-digital/id6760792436)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ATSolar free?

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

### Is Knox Digital free?

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

### Do ATSolar or Knox Digital have ads?

ATSolar shows ads; Knox Digital does not.

### Which is updated more often, ATSolar or Knox Digital?

ATSolar ships an update every 9 days, and Knox Digital fortnightly. Most recently, ATSolar was updated on October 24, 2026 and Knox Digital on October 25, 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.*