Comparison

TSUN Smart vs KSTAR Sync

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

Head to head
About

TSUN Smart

Monitor your solar power plants and devices from your mobile. Track real-time and historical generation data, calculate yield, and visualize individual panel performance with a custom layout.

Highlights
  • Manage multiple solar plants
  • Add and configure devices
  • View real-time generation data
  • Review historical generation data
  • Calculate solar yield
  • Build solar panel layouts
  • Monitor individual panel performance
Features
Read full description

TSUN Smart is a solar plant mornitoring application used by endusers or installers for TSUN products. You are able to manage different plants, add devices, configure the devices in batch, review real-time and historic generation data as well calculate your yield on your mobile phone. In addition, you are able to build a layout of your solar panels and mornitor the perfomance of each panel individually.

About

KSTAR Sync

Features
Read full description

Designed for energy system managers, O&M engineers, and power users, our app simplifies the complexities of power station monitoring and maintenance. Stay seamlessly connected to your assets and take full control, no matter where you are. Key Features: Comprehensive Real-Time Monitoring All-in-One Dashboard: Get a complete overview of all critical data, including power generation, energy storage status, charging power, and load consumption in one place. Intuitive Visualizations: Instantly understand energy dynamics and operational efficiency with clear trend graphs and power flow diagrams. Smart Alarm Center: Your First Line of Defense Multi-Level Push Alerts: Receive real-time notifications categorized by severity (Emergency, Major, Minor), ensuring you never miss a critical event. Closed-Loop Management: Track the entire lifecycle of an alarm, from detection to resolution, creating a complete and reliable maintenance archive. Historical Analysis: Easily query past alarm records to analyze system weak points and prevent future incidents. Efficient Remote Operations & Control Remote Start/Stop: Control your power station or specific equipment from anywhere, eliminating the need for on-site visits. Flexible Strategy Switching: Instantly switch between operational strategies like "Self-Consumption" or "Time-of-Use Control" with a single tap to maximize your economic returns.

Screenshots

TSUN Smart4 screens
KSTAR Sync4 screens

Verdict

The call

The clearest difference is update cadence: KSTAR Sync at every 2 weeks against TSUN Smart's every 6 weeks. 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

TSUN Smart ships an update every 6 weeks, KSTAR Sync every 2 weeks. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

Scorecard1 real difference · 9 level
TSUN Smart versus KSTAR Sync: the parameters behind the verdict, then further details
ParameterTSUN SmartKSTAR Sync
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews18.1% of reviews—
Number of ratings1 — better—
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size69 MB74 MB
Age rating4+4+
DeveloperTSUNESS Co., LtdShenzhen Kstar Science & Technology Co., Ltd.

Bugs and requests

TSUN Smart

Reported bugs

15 issues
  • Server connection failures preventing data display
  • Missing daily energy data in monthly summaries
  • Incorrect total energy calculations
  • Data frozen or not updating in real-time
  • App crashes or fails to load
Show 10 more
  • Verification code not sent during registration
  • Inverter configuration mode issues
  • Smart Meter integration causing system type changes
  • Synchronization problems with multiple micro-inverters
  • Daily counter resets losing historical data
  • Inconsistent power readings between panels on same roof
  • Connection drops between 12-13 hours daily
  • Data not recorded after app updates
  • Inverter shows offline despite active production
  • Micro-inverter pairing failures

Requested features

12 requests
  • Display daily peak power values consistently
  • Real-time data updates on demand (pull-to-refresh)
  • Export data in CSV format
  • Show maximum inverter capacity information
  • Email and push notifications for alerts
Show 7 more
  • Ability to adjust power limits directly in app
  • Display current firmware version
  • Monthly and yearly energy generation summaries
  • Larger chart labels and improved layout
  • Support for 5GHz WiFi networks
  • Improved German language translation
  • Better error messages and user guidance

KSTAR Sync

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

TSUN Smart

No in-app purchases

None

KSTAR Sync

No in-app purchases

Questions

Is TSUN Smart free?
TSUN Smart is free to download, with no in-app purchases.
Is KSTAR Sync free?
KSTAR Sync is free to download, with no in-app purchases.
Do TSUN Smart or KSTAR Sync have ads?
Neither TSUN Smart nor KSTAR Sync shows ads.
Which is updated more often, TSUN Smart or KSTAR Sync?
TSUN Smart ships an update every 6 weeks, and KSTAR Sync every 2 weeks. Most recently, TSUN Smart was updated on October 9, 2026 and KSTAR Sync on October 2, 2026.

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