CSI Cloud vs TSUN Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CSI Cloud
Monitor your Canadian Solar plant's performance remotely. Access real-time and historical data on energy production, revenue, and device status. Stay informed about your solar assets from anywhere.
- Real-time data access
- Historical data analysis
- Production energy tracking
- Revenue monitoring
- Device status checks
- Remote network access
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This is the software of client part for surveillance system for Canadian Solar plants, which enables obtain running parameters (production energy, production revenue, device status and etc,) from Canadian Solar Data Center. Furthermore, customers can check real-time data and historical data via remote network.
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.
- 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
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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.
Screenshots
Verdict
The clearest difference is rating: TSUN Smart at 5.0 against CSI Cloud's 1.5. CSI Cloud's advantage is iOS requirement (11.0 vs 15.6). On price, review sentiment, ratings volume 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TSUN Smart holds the better App Store score, 5.0 against 1.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 14% of CSI Cloud's written reviews are positive against 18% of TSUN Smart's.
CSI Cloud ships an update every 2 months, TSUN Smart every 6 weeks. The most recent releases landed on September 16, 2026 and September 20, 2026 respectively.
| Parameter | CSI Cloud | TSUN Smart |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 14.3% of reviews | 18.1% of reviews — better |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 38 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Canadian Solar Inc. | TSUNESS Co., Ltd |
Customer experience
CSI Cloud
TSUN Smart
Bugs and requests
CSI Cloud
Not enough reviews yet to summarise bugs or 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
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- 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
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- 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
In-app purchases
CSI Cloud
No in-app purchases
TSUN Smart
No in-app purchases
