Comparison

LinknLink vs SEM

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

Head to head
About

LinknLink

This app enables seamless interaction and interconnection between smart hardware devices via your mobile phone. It offers features like customized smart scenes, intelligent linkage, and time-based automation for a connected lifestyle.

Highlights
  • Customized smart scenes
  • Intelligent linkage
  • Time plan settings
  • Account sharing
  • Hierarchical management
  • Multi-language support
Features
Read full description

LinknLink is more than a smart home control app. Powered by a built-in AI Agent, it brings 1,500+ device brands, Home Assistant, and everyday lifestyle services into one unified experience. Control devices, create automations, manage your home, and get help using natural language. LinknLink works with Alexa, Google Home, Apple Home, Matter, SmartThings, and other major smart home platforms. KEY FEATURES 1. Control 1,500+ Device Brands Manage lights, air conditioners, curtains, locks, sensors, cameras, and more across different brands, protocols, and ecosystems — all from one app. • 20+ popular brands can be added directly without an extra gateway • More third-party brands can be connected through HomeClaw • No Home Assistant knowledge is required 2. Built-in AI Agent Simply tell LinknLink what you want to do. The built-in AI Agent can help you: • Control devices • Create scenes and automations • Schedule tasks • Answer setup and usage questions • Diagnose device and system issues • Assist with general everyday tasks No separate AI service or complicated setup is required. 3. Create Automations with Natural Language Forget complex rule builders. Just say: “Turn off the living room lights and lower the AC at 10 PM every night.” LinknLink understands your intent and creates the corresponding scene, schedule, or automation automatically. 4. Fast Local Control and Free Remote Access Connected devices can be controlled locally for faster and more reliable response. You can also access and manage your home remotely without an additional subscription. • Third-party devices require HomeClaw for free remote access 5. A Home That Learns Your Routine LinknLink can gradually understand your habits, preferences, and daily routines, then suggest useful automations to make your home more comfortable, efficient, and responsive. 6. Clean and Customizable Interface The modern card-based interface makes devices, rooms, and functions easy to understand and control. Customize card layouts and room styles to create an experience that fits your home. 7. Native Home Assistant Integration Connect LinknLink to your Home Assistant instance and import existing devices without adding them again. Home Assistant users can enjoy simpler mobile control, remote access, and AI Agent features. • Devices in Home Assistant on HomeClaw can support free remote access after being imported into LinknLink 8. Bridge Devices Across Platforms Bridge connected devices, including devices imported from Home Assistant, to Matter, Apple Home, or Samsung SmartThings. Continue controlling and automating them in the ecosystem you already use. 9. More Than Smart Home Control LinknLink also supports useful lifestyle services, including sports updates, radio, shopping lists, and more. It is not only a smart home app, but an AI assistant designed around everyday home life. 10. Built for the Connected Future Future support for CarPlay will help connect your car, phone, and home. Prepare lights, curtains, and air conditioning before you arrive, making every return home more comfortable. Bring your devices, automations, platforms, and everyday services together with LinknLink — one app for a smarter, simpler, and more connected home. 11.Terms of Use (EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 12. Service Agreement: https://app-service-chn-566c4736.linklinkiot.com/appfront/v1/webui/app-h5-subscribe_agreement_linklink-1036/ Privacy Policy:https://app-service-chn-566c4736.linklinkiot.com/appfront/v1/webui/app-h5-privacy_policy_linklink-1675/

About

SEM

This utility app monitors your household power consumption in real-time, providing historical data and comparisons to help you save on electricity bills. It supports managing multiple devices and customizing electricity fee calculations.

Highlights
  • Real-time power usage monitoring
  • Historical energy use tracking
  • Second-to-second, day-to-day, week-to-week, month-to-month, and year-to-year comparisons
  • Electricity fee gradient calculation
  • Customizable fee templates
  • Multiple device management
Read full description

SEM‑Meter is a smart energy monitor that installs directly in your power distribution box. It continuously tracks your household electricity consumption and delivers real‑time usage data straight to you—so you always know exactly what’s drawing power. Beyond live monitoring, SEM‑Meter offers powerful insights to help you manage energy more intelligently: Historical analysis – Review past usage patterns and identify conservation opportunities. Multi‑timeframe comparisons – Compare consumption second by second, day by day, week by week, month by month, and year over year. Bill savings – With clear visibility into your habits, you can make informed changes that lower your monthly electricity costs. Customizable tariff calculator – Includes a built‑in electricity fee gradient template, fully adjustable to match your local rate structure. Multi‑device management – Add and bind multiple SEM‑Meters to a single account, enabling unified monitoring and control across multiple properties or expanded setups. Whether you're an eco‑conscious homeowner or managing a growing portfolio, SEM‑Meter gives you the data and flexibility to take full command of your energy future.

Screenshots

LinknLink4 screens
SEM3 screens

Verdict

The call

The clearest difference is in-app purchases: SEM at none against LinknLink's 10. LinknLink's advantage is ratings volume (44 vs 11). On price, rating, review sentiment and update cadence 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. LinknLink sells 10 in-app purchases, starting at $0.99 per year. SEM asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SEM holds the better App Store score, 3.4 against 3.2. Both are backed by a comparable volume of ratings — 44 and 11 respectively. Written reviews complicate that: 42% of LinknLink's written reviews are positive against 38% of SEM's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

Scorecard3 real differences · 7 level
LinknLink versus SEM: the parameters behind the verdict, then further details
ParameterLinknLinkSEM
PriceFreeFree
Rating3.2 (44 ratings)3.4 (11 ratings) — better
Positive reviews42.3% of reviews — better37.5% of reviews
Number of ratings44 — better11
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.5 — better15.6
Further details — not scored
Size286 MB31 MB
Age rating9+4+
DeveloperHangzhou LinkLink Technology Co., Ltd.Hangzhou Dashi Wisdom Technology Co., Ltd.

Customer experience

LinknLink

All ratings44 ratings
Positive47.7%
Neutral11.4%
Negative40.9%
Written reviews52 reviews
Positive42.3%
Neutral9.6%
Negative48.1%

SEM

All ratings11 ratings
Positive54.5%
Neutral18.2%
Negative27.3%
Written reviews8 reviews
Positive37.5%
Neutral25.0%
Negative37.5%

Bugs and requests

LinknLink

Reported bugs

23 issues
  • Cannot complete account setup/home location
  • Firmware updates broke device functionality
  • App crashes when selecting county location
  • App crashes when clicking on any device
  • App stops working/controlling devices
Show 18 more
  • Servers are often down
  • Login issues
  • Registration process fails
  • Setup process is difficult and error-prone
  • Bug with Home Assistant firmware
  • Sensor detection range decreased after firmware update
  • Custom notification sound not possible
  • Submenus displayed in Chinese
  • Temperature gauge locked to Celsius
  • Sensors added via app don't show up on gateway
  • Devices stop reading sensors at random times
  • Gateway turns off randomly
  • Devices intermittently disconnect from WiFi
  • EHub sensitivity too high
  • IR controller features do not work
  • Repetitive notifications sent
  • Product reboots constantly
  • App broken with iOS 18 update

Requested features

5 requests
  • Ability to edit button icons and titles
  • Add custom notification sound
  • Add sensitivity adjustment for eHub
  • Improve location options for smaller cities
  • Fix IR controller features

SEM

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

LinknLink

Subscriptions10
  • 1 Screen$0.991 Year
  • 2 Screen$1.991 Year
  • ISG Monthly$1.991 Month
Show 7 more
  • 3 Screen$2.991 Year
  • 4 Screen$3.991 Year
  • 5 Screen$4.991 Year
  • 500MB$19.991 Year
  • ISG Year$19.991 Year
  • 1GB$29.991 Year
  • 3GB$59.991 Year
None

SEM

No in-app purchases

Questions

Is LinknLink free?
LinknLink is free to download, with in-app purchases available.
Is SEM free?
SEM is free to download, with no in-app purchases.
Which has better reviews, LinknLink or SEM?
SEM is rated higher. LinknLink averages 3.2 out of 5 from 44 ratings, while SEM averages 3.4 from 11 ratings.
Do LinknLink or SEM have ads?
Neither LinknLink nor SEM shows ads.
Which is updated more often, LinknLink or SEM?
LinknLink ships an update every 2 weeks, and SEM every 2 weeks. Most recently, LinknLink was updated on October 8, 2026 and SEM on October 2, 2026.

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