Comparison

MySolArk vs EG4 BMS

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

Head to head

MySolArk

Sol-Ark

Free

🔧 Utilities

★ 2.0123 ratingsView app →

About

MySolArk

This application allows users to remotely customize and monitor their photovoltaic energy storage systems. It provides 7-day-a-week support to help optimize the system based on user goals.

Highlights

Remote system customization
Energy storage system monitoring
PV system optimization
7-day-a-week support
Anytime, anywhere access

Features

Read full description

The MySolArk app lets you customize and monitor your PV building energy storage system from anywhere, anytime. Our support staff will help you optimize your system to your goals 7 days a week. Visit Sol-Ark.com

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

MySolArk4 screens

EG4 BMS3 screens

Verdict

The call

The clearest difference is update cadence: EG4 BMS at every 3 days against MySolArk's every 5 weeks. 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

MySolArk ships an update every 5 weeks, EG4 BMS every 3 days. The most recent releases landed on September 26, 2026 and September 20, 2026 respectively.

Scorecard1 real difference · 9 level

MySolArk versus EG4 BMS: the parameters behind the verdict, then further details
Parameter	MySolArk	EG4 BMS
Price	Free	Free
Rating	2.0 (123 ratings) — better	—
Positive reviews	12.0% of reviews	—
Number of ratings	123 — better	—
Update frequency	Every 5 weeks	Every 3 days — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPod	iPhone, iPod
Requires iOS	12.0	11.0 — better
Further details — not scored
Size	34 MB	44 MB
Age rating	4+	4+
Developer	Sol-Ark	eg4

Bugs and requests

MySolArk

Reported bugs

19 issues

Constant logout requiring repeated authentication
Slow or delayed data updates from inverter
App shows system offline when it's actually online
Historical data (monthly/yearly) displays as zero or disappears
Data inconsistencies between overview and detailed screens

Show 14 more

Cannot save parameter changes (request timeout errors)
White blank screens blocking access to settings
Login page elements grayed out making input difficult
Battery level and household usage showing zero incorrectly
Graph colors too similar making data hard to distinguish
Pop-up windows appearing outside visible screen area
App hangs when loading historical data
Notifications toggle on but alerts don't trigger
Tab bar text hidden under system home indicator
QR code scanning for plant setup unclear/non-functional
Service errors preventing account setup
Data not syncing between app and inverter display
App incompatible with iPhone 16 Pro Max parameters section
Request timeout when pulling daily data

Requested features

14 requests

Keep user logged in with biometric authentication (Face ID/fingerprint)
Push notifications for grid outages and system status changes
Ability to control/modify inverter settings from app
Custom date range reporting (not just calendar months)
Daily summary view showing aggregated metrics

Show 9 more

24-hour load graph display even without PV generation
Weather information integration
Data export functionality (CSV/PDF reports)
Consistent color coding across all screens
Automatic data refresh without manual pull-down
Version number visibility in app settings
Support for select/cut/paste functionality
Subscription option for more frequent data updates
Megawatt display for large production values

EG4 BMS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

MySolArk

No in-app purchases

None

EG4 BMS

No in-app purchases

Questions

Is MySolArk free?

MySolArk 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 MySolArk or EG4 BMS have ads?

Neither MySolArk nor EG4 BMS shows ads.

Which is updated more often, MySolArk or EG4 BMS?

MySolArk ships an update every 5 weeks, and EG4 BMS every 3 days. Most recently, MySolArk was updated on September 26, 2026 and EG4 BMS on September 20, 2026.