# Sunline vs Deye ESS

The clearest difference is rating: Deye ESS at 5.0 against Sunline's 4.0. Deye ESS also leads on update cadence (every 10 days vs every 4 months). Sunline's advantage is ratings volume (4 vs 1) and 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.

Deye ESS holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Sunline ships an update every 4 months, Deye ESS every 10 days. The most recent releases landed on September 10, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Sunline | Deye ESS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/sunline/id1494807667/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/deye-ess/id6746040947/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | Free | Free |
| Size | 7 MB | 103 MB |
| Requires iOS | **11.1** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Drift Innovation Ltd](https://appshunter.io/developer/579007701) | [Cuiji Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1738188942) |

## 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


### 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


## Frequently asked questions

### Is Sunline free?

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

### Is Deye ESS free?

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

### Which has better reviews, Sunline or Deye ESS?

Deye ESS is rated higher. Sunline averages 4.0 out of 5 from 4 ratings, while Deye ESS averages 5.0 from 1 ratings.

### Do Sunline or Deye ESS have ads?

Neither Sunline nor Deye ESS shows ads.

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

Sunline ships an update every 4 months, and Deye ESS every 10 days. Most recently, Sunline was updated on September 10, 2026 and Deye ESS on October 17, 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.*