TSUN Smart vs REFUview
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
REFUview
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The REFUview app for iOS allows you to monitor your solar system with REFU inverters in real time directly on your iPhone or iPad. The cloud-based application meets highest and latest security standards to ensure the protection of your data.
Screenshots
Verdict
TSUN Smart and REFUview are too close to call on the numbers: across 6 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.
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 ships an update every 6 weeks, REFUview every 2 months. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.
| Parameter | TSUN Smart | REFUview |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 18.1% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 69 MB | 13 MB |
| Age rating | 4+ | 17+ |
| Developer | TSUNESS Co., Ltd | REFU Elektronik GmbH |
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
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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
REFUview
Not enough reviews yet to summarise bugs or requests.
In-app purchases
TSUN Smart
No in-app purchases
REFUview
No in-app purchases
