Comparison

Sermatec vs Udan HESS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

Sermatec Cloud

About

Sermatec

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

Read full description

Support to check the status of the optical storage integrated machine, one time can view the overall power station status. Support to view the data status chart, you can view real-time device data information. Support equipment power generation efficiency prediction and improve equipment power generation efficiency. View historical alarms and monitor device status at all times. Supports multiple power station management, facilitating the management of multiple power stations by individuals or enterprises. Supports multiple all-in-one devices for home or business installation or viewing of multiple sets of devices. Supports online configuration to facilitate equipment installation and debugging. Support multiple account login. Support cloud data platform, storage device status information, etc.

About

Udan HESS

Features

Read full description

Udan ESS App is for household energy storage users to view power generation data. It has convenient functions such as real-time status monitoring and operation and maintenance management. Udan ESS App is the battery application at your fingertips

Screenshots

Sermatec4 screens

Udan HESS4 screens

Verdict

The call

The clearest difference is update cadence: Sermatec at every 3 weeks against Udan HESS's every 3 months. Udan HESS's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Sermatec ships an update every 3 weeks, Udan HESS every 3 months. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 6 level

Sermatec versus Udan HESS: the parameters behind the verdict, then further details
Parameter	Sermatec	Udan HESS
Price	Free	Free
Positive reviews	0.0% of reviews	—
Update frequency	Every 3 weeks — better	Every 3 months
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	15.6	13.0 — better
Further details — not scored
Size	62 MB	33 MB
Age rating	4+	4+
Developer	Shanghai Sermatec Energy Technology CO.,LTD	Anhui Udan Technology Co., Ltd.

In-app purchases

None

Sermatec

No in-app purchases

None

Udan HESS

No in-app purchases

Questions

Is Sermatec free?

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

Is Udan HESS free?

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

Do Sermatec or Udan HESS have ads?

Neither Sermatec nor Udan HESS shows ads.

Which is updated more often, Sermatec or Udan HESS?

Sermatec ships an update every 3 weeks, and Udan HESS every 3 months. Most recently, Sermatec was updated on September 23, 2026 and Udan HESS on September 10, 2026.