Comparison

SUNSATHI SOLAR vs Grid Zero

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

Head to head

About

SUNSATHI SOLAR

Features

Read full description

This app is used to remotely view the operation data of photovoltaic and energy storage equipment. Users can easily know the operation information of photovoltaic and energy storage equipment, and maintenance personnel can also conveniently carry out after-sales maintenance.

About

Grid Zero

Features

Read full description

GridZero helps EPC teams go from concept to client-ready solar proposals - faster and with precision. Combining 3D layouts, system optimization, financial analysis, and proposal generation into one continuous workflow. Designed for solar EPC professionals. GridZero is evolving to support the full solar project lifecycle. This app is exclusively available to existing GridZero B2B client organizations. Access is provisioned by GridZero for authorized team members.

Screenshots

SUNSATHI SOLAR4 screens

Grid Zero4 screens

Verdict

The call

The clearest difference is update cadence: Grid Zero at weekly against SUNSATHI SOLAR's monthly. 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

SUNSATHI SOLAR ships an update monthly, Grid Zero weekly. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

Scorecard1 real difference · 5 level

SUNSATHI SOLAR versus Grid Zero: the parameters behind the verdict, then further details
Parameter	SUNSATHI SOLAR	Grid Zero
Price	Free	Free
Update frequency	Monthly	Weekly — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	15.6	15.1 — better
Further details — not scored
Size	37 MB	55 MB
Age rating	4+	4+
Developer	无锡乐伏网络科技有限公司	Gridzero

In-app purchases

None

SUNSATHI SOLAR

No in-app purchases

None

Grid Zero

No in-app purchases

Questions

Is SUNSATHI SOLAR free?

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

Is Grid Zero free?

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

Do SUNSATHI SOLAR or Grid Zero have ads?

Neither SUNSATHI SOLAR nor Grid Zero shows ads.

Which is updated more often, SUNSATHI SOLAR or Grid Zero?

SUNSATHI SOLAR ships an update monthly, and Grid Zero weekly. Most recently, SUNSATHI SOLAR was updated on October 14, 2026 and Grid Zero on October 10, 2026.