# Desay ESS vs SUNBOOSTER

The clearest difference is update cadence: SUNBOOSTER at every 9 months against Desay ESS's every 18 months. 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.

Desay ESS ships an update every 18 months, SUNBOOSTER every 9 months. The most recent releases landed on September 17, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Desay ESS | SUNBOOSTER |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 42.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 9 months** |
| Monetization | — | Free |
| Size | 64 MB | 53 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Desai](https://appshunter.io/developer/1727485268) | [SUNBOOSTER GmbH](https://appshunter.io/developer/1754104957) |

## What reviewers say

### Desay ESS

[App page](https://appshunter.io/ios/app/desay-ess/id6476649107)

**Features:** macOS Compatibility

**In-app purchases:** none


### SUNBOOSTER

[App page](https://appshunter.io/ios/app/sunbooster/id6504853739)

Manage your Sunbooster POWERSTATION GRID with this intuitive application. It offers efficient control and a user-friendly interface for managing your power station.

**Highlights:** Efficient grid control, User-friendly interface, Power station management, Intuitive operation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Desay ESS free?

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

### Is SUNBOOSTER free?

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

### Do Desay ESS or SUNBOOSTER have ads?

Neither Desay ESS nor SUNBOOSTER shows ads.

### Which is updated more often, Desay ESS or SUNBOOSTER?

Desay ESS ships an update every 18 months, and SUNBOOSTER every 9 months. Most recently, Desay ESS was updated on September 17, 2026 and SUNBOOSTER on June 1, 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.*