Comparison

SolarViewer vs Solar.on

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

About

SolarViewer

Features

Read full description

PV interverter monitoring APP to monitor PV plant and PV inverter meter/parameters, provide local/remote setting.

About

Solar.on

Features

Read full description

Solar.on App is a PV monitoring product that integrates real-time monitoring, accurate message push, intelligent alarm, efficient operation and maintenance, remote upgrade control, large visual screen, and statistical analysis. It can monitor the operating status of PV inverters and other device in real time. Automatically calculate the energy and efficiency of device and plant dimensions, and quickly locate faulty plants, assisting operation and maintenance personnel to quickly complete on-site defect elimination work.

Screenshots

SolarViewer2 screens

Solar.on4 screens

Verdict

The call

The clearest difference is update cadence: SolarViewer at every 5 weeks against Solar.on's every 4 months. SolarViewer also leads on iOS requirement (8.0 vs 12.0). 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

SolarViewer ships an update every 5 weeks, Solar.on every 4 months. The most recent releases landed on September 6, 2026 and September 22, 2026 respectively.

Scorecard2 real differences · 4 level

SolarViewer versus Solar.on: the parameters behind the verdict, then further details
Parameter	SolarViewer	Solar.on
Price	Free	Free
Update frequency	Every 5 weeks — better	Every 4 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	8.0 — better	12.0
Further details — not scored
Size	36 MB	98 MB
Age rating	4+	17+
Developer	AsianPowerDevicesInc	鑫俞

In-app purchases

None

SolarViewer

No in-app purchases

None

Solar.on

No in-app purchases

Questions

Is SolarViewer free?

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

Is Solar.on free?

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

Do SolarViewer or Solar.on have ads?

Neither SolarViewer nor Solar.on shows ads.

Which is updated more often, SolarViewer or Solar.on?

SolarViewer ships an update every 5 weeks, and Solar.on every 4 months. Most recently, SolarViewer was updated on September 6, 2026 and Solar.on on September 22, 2026.