# MarsES vs WattSeek

The clearest difference is update cadence: WattSeek at every 3 weeks against MarsES's every 4 months. MarsES's advantage is iOS requirement (12.0 vs 15.1). 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.

MarsES ships an update every 4 months, WattSeek every 3 weeks. The most recent releases landed on September 10, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | MarsES | WattSeek |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 192 MB | 43 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [卓文 梁](https://appshunter.io/developer/1759304348) | [Guangzhou Shiyuan Electronics Co., Ltd.](https://appshunter.io/developer/542894088) |

## What reviewers say

### MarsES

[App page](https://appshunter.io/ios/app/marses/id6578447579)

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

**In-app purchases:** none


### WattSeek

[App page](https://appshunter.io/ios/app/wattseek/id6742482606)

An AI-powered platform for managing solar energy systems. It supports the entire lifecycle of solar plants, from setup to ongoing maintenance, enabling smart energy distribution and digital asset services.

**Highlights:** AI-driven photovoltaic management, Device commissioning, Predictive maintenance, Multi-device control, Smart energy dispatch, Digital asset services

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

**In-app purchases:** none


## Frequently asked questions

### Is MarsES free?

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

### Is WattSeek free?

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

### Do MarsES or WattSeek have ads?

Neither MarsES nor WattSeek shows ads.

### Which is updated more often, MarsES or WattSeek?

MarsES ships an update every 4 months, and WattSeek every 3 weeks. Most recently, MarsES was updated on September 10, 2026 and WattSeek on August 19, 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.*