RCT RESS vs Voltha
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RCT RESS
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.
- Monitor inverters
- Manage energy storage systems
- Household energy solutions
- Industrial energy solutions
- Grid energy solutions
- System monitoring
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RCT RSS is developed by RCT Power, which is convenient for users to use and monitor inverters and energy storage systems. RCT Power is an energy storage system company integrating R&D, production and sales. The products and technologies come from Lake Constance in Germany, and the products cover household, industrial and grid energy storage. In terms of household energy storage, we are one of the few providers of overall system solutions in the world. The three major architectures of energy storage, battery modules, inverter modules and energy management, are all developed and produced by the company itself.
Voltha
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Mobile and PC-based application for energy flows control and monitoring, software updates, setting up programmable features of the energy storage device and controlling external devices like water cylinder, EV chargers and PV plants. The application allows the users to get the best performance from their energy storage system and therefore achieve the best economical results.
Screenshots
Verdict
The clearest difference is iOS requirement: Voltha at 12.0 against RCT RESS's 15.6. On price, update cadence, ads and in-app purchases 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.
RCT RESS ships an update monthly, Voltha every 3 weeks. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.
| Parameter | RCT RESS | Voltha |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 39 MB | 71 MB |
| Age rating | 12+ | 4+ |
| Developer | Jiangsu RCT Power Energy Technology Co., Ltd | Aton Green Energy |
In-app purchases
RCT RESS
No in-app purchases
Voltha
No in-app purchases
