# SUNVEC vs RAPD Inverter

The clearest difference is update cadence: RAPD Inverter at every 6 weeks against SUNVEC's every 3 months. SUNVEC's advantage is iOS requirement (8.0 vs 13.4). 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.

SUNVEC ships an update every 3 months, RAPD Inverter every 6 weeks. The most recent releases landed on June 26, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SUNVEC | RAPD Inverter |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 57 MB | 41 MB |
| Requires iOS | **8.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [VECTOR ENERGY GLOBAL SLU](https://appshunter.io/developer/1646905645) | [AsianPowerDevicesInc](https://appshunter.io/developer/1214788661) |

## What reviewers say

### SUNVEC

[App page](https://appshunter.io/ios/app/sunvec/id1591897652)

Monitor your photovoltaic plant and inverter parameters locally or remotely. This application allows for setting adjustments and provides real-time data for your solar energy system.

**Highlights:** PV plant monitoring, PV inverter parameter tracking, Local setting, Remote setting, Real-time data

**Features:** macOS Compatibility

**In-app purchases:** none


### RAPD Inverter

[App page](https://appshunter.io/ios/app/rapd-inverter/id6758372051)

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

**In-app purchases:** none


## Frequently asked questions

### Is SUNVEC free?

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

### Is RAPD Inverter free?

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

### Do SUNVEC or RAPD Inverter have ads?

Neither SUNVEC nor RAPD Inverter shows ads.

### Which is updated more often, SUNVEC or RAPD Inverter?

SUNVEC ships an update every 3 months, and RAPD Inverter every 6 weeks. Most recently, SUNVEC was updated on June 26, 2026 and RAPD Inverter on September 10, 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.*