# TSUN Smart vs SEMS+

The clearest difference is rating: TSUN Smart at 5.0 against SEMS+'s 2.4. SEMS+'s advantage is update cadence (every 8 days vs every 6 weeks) and ratings volume (12 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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 2.4. That said, the two scores are not equally well evidenced: SEMS+ has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 18% of TSUN Smart's written reviews are positive against 29% of SEMS+'s, so the app with the better star average is not the one people write more warmly about.

TSUN Smart ships an update every 6 weeks, SEMS+ every 8 days. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | TSUN Smart | SEMS+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tsun-smart/id6468031219/reviews)** | [2.4 (12 ratings)](https://appshunter.io/ios/app/sems-plus/id6755710856/reviews) |
| Number of ratings | 1 | **12** |
| Positive reviews | 18.1% of reviews | **29.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Monetization | Free | Free |
| Size | 69 MB | 268 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TSUNESS Co., Ltd](https://appshunter.io/developer/1718029393) | [GoodWe Technologies Co., Ltd.](https://appshunter.io/developer/833350490) |

## What reviewers say

### TSUN Smart

[App page](https://appshunter.io/ios/app/tsun-smart/id6468031219)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy setup and installation process
- 📊 Clear and intuitive user interface
- 🔌 Simple WiFi connection to inverters
- ⚡ Real-time energy production monitoring
- 🎯 Straightforward configuration with serial numbers

**What reviewers complain about**

- 🐛 Frequent server outages and disconnections
- 🐛 Missing data and incomplete daily records
- 🌐 Poor German translation with numerous errors
- ⏱️ Slow app performance and sluggish updates
- 📉 Data synchronization delays (15-30 minutes)

**Reported bugs**

- 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

**Requested features**

- 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


### SEMS+

[App page](https://appshunter.io/ios/app/sems-plus/id6755710856)

This platform provides comprehensive energy system management for GoodWe devices. It offers real-time monitoring, energy flow visualization, and AI-driven health guidance. Users can remotely operate systems, receive smart alerts, and integrate multiple devices for efficient energy management and performance optimization.

**Highlights:** Real-time system and device monitoring, Energy flow visualization, AI health expert guidance, Remote operation, Smart alerts, Multi-device integration

**In-app purchases:** none


## Frequently asked questions

### Is TSUN Smart free?

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

### Is SEMS+ free?

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

### Which has better reviews, TSUN Smart or SEMS+?

TSUN Smart is rated higher. TSUN Smart averages 5.0 out of 5 from 1 ratings, while SEMS+ averages 2.4 from 12 ratings.

### Do TSUN Smart or SEMS+ have ads?

Neither TSUN Smart nor SEMS+ shows ads.

### Which is updated more often, TSUN Smart or SEMS+?

TSUN Smart ships an update every 6 weeks, and SEMS+ every 8 days. Most recently, TSUN Smart was updated on September 20, 2026 and SEMS+ on September 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*