# Sermatec vs WEESS

Sermatec and WEESS are too close to call on the numbers: across 7 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sermatec ships an update every 3 weeks, WEESS monthly. The most recent releases landed on September 23, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Sermatec | WEESS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/weess/id6470615837/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 62 MB | 93 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Sermatec Energy Technology CO.,LTD](https://appshunter.io/developer/1503982937) | [Weyland Innovations Co., Ltd](https://appshunter.io/developer/1713883757) |

## What reviewers say

### Sermatec

[App page](https://appshunter.io/ios/app/sermatec/id1503982938)

Monitor the status of integrated optical storage machines and view overall power station performance. Access real-time data charts, predict power generation efficiency, and manage historical alarms. Supports multiple power station and device management with online configuration and multi-account login.

**Highlights:** View overall power station status, Real-time data status charts, Equipment power generation efficiency prediction, Historical alarm monitoring, Multiple power station management, Online configuration

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

**In-app purchases:** none


### WEESS

[App page](https://appshunter.io/ios/app/weess/id6470615837)

This app offers intelligent energy management for your home, optimizing storage and usage based on your patterns. It provides real-time data, personalized efficiency suggestions, and emergency backup power. Connect with others in an energy sharing community for greater flexibility and benefits.

**Highlights:** Intelligent energy optimization, Real-time data and analytics, Smart energy efficiency reminders, Emergency backup power, Energy sharing community

**In-app purchases:** none


## Frequently asked questions

### Is Sermatec free?

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

### Is WEESS free?

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

### Do Sermatec or WEESS have ads?

Neither Sermatec nor WEESS shows ads.

### Which is updated more often, Sermatec or WEESS?

Sermatec ships an update every 3 weeks, and WEESS monthly. Most recently, Sermatec was updated on September 23, 2026 and WEESS on September 13, 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.*