# EMA App vs RENAC SEC

The clearest difference is rating: EMA App at 2.5 against RENAC SEC's 1.0. EMA App also leads on ratings volume (112 vs 1) and update cadence (every 2 weeks vs every 5 weeks). 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.

EMA App holds the better App Store score, 2.5 against 1.0. That said, the two scores are not equally well evidenced: EMA App has 112 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 27% of EMA App's written reviews are positive against 17% of RENAC SEC's.

EMA App ships an update every 2 weeks, RENAC SEC every 5 weeks. The most recent releases landed on September 25, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | EMA App | RENAC SEC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (112 ratings)](https://appshunter.io/ios/app/ema-app/id984843541/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/renac-sec/id1568028954/reviews) |
| Number of ratings | **112** | 1 |
| Positive reviews | **26.8% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 251 MB | 35 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Altenergy Power System,Inc.](https://appshunter.io/developer/906598006) | [无锡乐伏网络科技有限公司](https://appshunter.io/developer/1197246083) |

## What reviewers say

### EMA App

[App page](https://appshunter.io/ios/app/ema-app/id984843541)

Monitor your solar energy system's performance in real-time and review historical data. Track power output, environmental benefits, and system details for APsystems microinverter users.

**Highlights:** Real-time output power display, Historical power output tracking, Environmental benefits monitoring, Daily, monthly, yearly, and lifetime output review, System registration and equipment profile, Installer contact information

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ✅ Accurate solar panel energy production tracking
- 📊 Clear and easy-to-understand data visualization
- 🌍 CO2 reduction metrics display
- ⚡ Reliable hardware performance
- 📱 Basic functionality works when operational

**What reviewers complain about**

- 🐛 Frequent app crashes and freezes
- 🔌 Unreliable connectivity and offline issues
- ⏰ Data consistently 10-15 minutes to hours behind real-time
- 🌙 Night mode/dark mode won't persist after closing app
- ⚙️ Settings not retained between sessions

**Reported bugs**

- App won't open on iPad after recent updates
- Night/dark mode doesn't persist when app is closed
- Login screen infinite loading circle
- App crashes regularly and becomes unusable
- Data page requires manual selection every time to display information

**Requested features**

- iOS widgets for home screen and lock screen
- Apple Watch app and watch face widgets
- iPad app with landscape mode support
- Auto-refresh functionality for live data updates
- Persistent login credentials


### RENAC SEC

[App page](https://appshunter.io/ios/app/renac-sec/id1568028954)

Monitor and intelligently control your Renac inverter with this advanced energy management system. It offers solutions for distributed generation and microgrid systems, leveraging cloud computing and big data for efficient solar plant operations.

**Highlights:** String inverter monitoring, Hybrid inverter control, Intelligent energy management, Distributed generation solutions, Microgrid system management, Solar plant operations platform

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is EMA App free?

EMA App is free to download, with no in-app purchases.

### Is RENAC SEC free?

RENAC SEC is free to download, with no in-app purchases.

### Which has better reviews, EMA App or RENAC SEC?

EMA App is rated higher. EMA App averages 2.5 out of 5 from 112 ratings, while RENAC SEC averages 1.0 from 1 ratings.

### Do EMA App or RENAC SEC have ads?

Neither EMA App nor RENAC SEC shows ads.

### Which is updated more often, EMA App or RENAC SEC?

EMA App ships an update every 2 weeks, and RENAC SEC every 5 weeks. Most recently, EMA App was updated on September 25, 2026 and RENAC SEC on September 6, 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.*