# RCT RESS vs eVARMO

The clearest difference is update cadence: RCT RESS at monthly against eVARMO's every 7 months. eVARMO's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RCT RESS ships an update monthly, eVARMO every 7 months. The most recent releases landed on October 15, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | RCT RESS | eVARMO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rct-ress/id1577284760/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Monetization | Free | — |
| Size | 39 MB | 40 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Jiangsu RCT Power Energy Technology Co., Ltd](https://appshunter.io/developer/1577284762) | [Lucht LHZ Elektroheizung GmbH & Co. KG](https://appshunter.io/developer/1194100934) |

## What reviewers say

### RCT RESS

[App page](https://appshunter.io/ios/app/rct-ress/id1577284760)

Monitor and manage inverters and energy storage systems. Developed by an energy storage company, this app offers convenient control over household, industrial, and grid energy solutions.

**Highlights:** Monitor inverters, Manage energy storage systems, Household energy solutions, Industrial energy solutions, Grid energy solutions, System monitoring

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

**In-app purchases:** none


### eVARMO

[App page](https://appshunter.io/ios/app/evarmo/id6446863717)

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

**In-app purchases:** none


## Frequently asked questions

### Is RCT RESS free?

RCT RESS is free to download, with no in-app purchases.

### Is eVARMO free?

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

### Do RCT RESS or eVARMO have ads?

Neither RCT RESS nor eVARMO shows ads.

### Which is updated more often, RCT RESS or eVARMO?

RCT RESS ships an update monthly, and eVARMO every 7 months. Most recently, RCT RESS was updated on October 15, 2026 and eVARMO on October 28, 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.*