PrimeVolt vs EV
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrimeVolt
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Display PrimeVolt PVI power generation information data, simple and efficient
EV
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EV-WATCH is a H.264+H265 DVR remote viewer. It can be viewed in non-landscape or landscape mode after filling in IP, port, username, and password. Features: - Live view - Time search and play - Event search and play - PTZ control - Relay control - Backup files to device - Zoom View
Screenshots
Verdict
The clearest difference is update cadence: PrimeVolt at every 6 weeks against EV's every 10 months. On price, ads, in-app purchases and device support 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.
PrimeVolt ships an update every 6 weeks, EV every 10 months. The most recent releases landed on June 22, 2026 and September 8, 2026 respectively.
| Parameter | PrimeVolt | EV |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 9.0 |
| Further details — not scored | ||
| Size | 19 MB | 26 MB |
| Age rating | 17+ | 4+ |
| Developer | Asian Power Devices Inc | EnnoVision INC. |
In-app purchases
PrimeVolt
No in-app purchases
EV
No in-app purchases
