Comparison

Solar Aircon vs EG4 BMS

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

Head to head

Solar Aircon

Free

🔧 Utilities

★ 4.059 ratingsView app →

About

Solar Aircon

Monitor your air conditioner's power saving capabilities, with potential savings of 50%-100% during daytime hours. Remotely control your AC unit from any location and set timers for automated operation.

Highlights

Check power saving status
Remote AC control
Set operational timers
Monitor daytime energy savings

Features

Read full description

1. Check power saving through APP, 50%-100% in day time 2. Control air conditioner whenever and wherever you are 3. Timer: set timer to perform multiple functions

About

EG4 BMS

Read full description

The EG4 BMS App is an application designed for battery management, suitable for both household and industrial power management, storage, and related functions. Compatible with EG4's 314Ah WallMount battery series

Screenshots

Solar Aircon4 screens

EG4 BMS3 screens

Verdict

The call

The clearest difference is update cadence: EG4 BMS at every 3 days against Solar Aircon's every 20 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

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

Solar Aircon ships an update every 20 months, EG4 BMS every 3 days. The most recent releases landed on November 7, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 9 level

Solar Aircon versus EG4 BMS: the parameters behind the verdict, then further details
Parameter	Solar Aircon	EG4 BMS
Price	Free	Free
Rating	4.0 (59 ratings) — better	—
Positive reviews	66.7% of reviews	—
Number of ratings	59 — better	—
Update frequency	Every 20 months	Every 3 days — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPod	iPhone, iPod
Requires iOS	11.0	11.0
Further details — not scored
Size	165 MB	44 MB
Age rating	4+	4+
Developer	Zhejiang Deye Electrical Appliances Co., Ltd.	eg4

In-app purchases

None

Solar Aircon

No in-app purchases

None

EG4 BMS

No in-app purchases

Questions

Is Solar Aircon free?

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

Is EG4 BMS free?

EG4 BMS is free to download, with no in-app purchases.

Do Solar Aircon or EG4 BMS have ads?

Neither Solar Aircon nor EG4 BMS shows ads.

Which is updated more often, Solar Aircon or EG4 BMS?

Solar Aircon ships an update every 20 months, and EG4 BMS every 3 days. Most recently, Solar Aircon was updated on November 7, 2026 and EG4 BMS on October 28, 2026.