# Deye ESS vs ScanAI

The clearest difference is in-app purchases: Deye ESS at none against ScanAI's 3. Deye ESS also leads on ads (none vs shown) and update cadence (weekly vs monthly). On price and device support there is nothing between them.

Both are free to download. ScanAI sells 3 in-app purchases, starting at $6.99 per 7 days. Deye ESS asks for nothing beyond the download.

Deye ESS ships an update weekly, ScanAI monthly. The most recent releases landed on September 12, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Deye ESS | ScanAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/deye-ess/id6746040947/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free | — |
| Size | 84 MB | 20 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [萃绩科技(上海)有限公司](https://appshunter.io/developer/1738188942) | [Artem Kutukov](https://appshunter.io/developer/1879046531) |

## What reviewers say

### Deye ESS

[App page](https://appshunter.io/ios/app/deye-ess/id6746040947)

Manage your power station equipment throughout its lifecycle with smart, scenario-based energy storage. Features include real-time monitoring, efficient O&M, fault diagnosis, and a smart revenue calculator. Access nationwide electricity prices to optimize operations and maximize ROI.

**Highlights:** Full lifecycle equipment management, All-in-one O&M with fault diagnosis, AI-powered maintenance scheduling, Real-time equipment monitoring, Smart revenue calculator, Nationwide electricity price lookup

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

**In-app purchases:** none


### ScanAI

[App page](https://appshunter.io/ios/app/scanai-pdf-and-document-scanner/id6759494672)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $6.99 | per 7 days |
| Annual Premium | $59.99 | per year |
| Premium Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Deye ESS free?

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

### Is ScanAI free?

ScanAI is free to download, with in-app purchases available.

### Do Deye ESS or ScanAI have ads?

ScanAI shows ads; Deye ESS does not.

### Which is updated more often, Deye ESS or ScanAI?

Deye ESS ships an update weekly, and ScanAI monthly. Most recently, Deye ESS was updated on September 12, 2026 and ScanAI on September 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*