Comparison

Marina4 vs Sit Connect

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

Head to head

About

Marina4

Access historical, current, and future tide information. Features a sophisticated forecasting system that also displays a countdown for port closures.

Highlights

Past tide consultation
Current day tide information
Tomorrow tide forecast
Sophisticated forecasting system
Port closure countdown

Features

Read full description

The Marina4 app allows you to consult the past tides, the current day tides and a forecast for tomorrow tides. With the sophisticated forecasting system, the app also exposes a countdown for the port closure.

About

Sit Connect

Features

Read full description

Sit Connect is a power device management application launched by Chengdu Sit New Energy Technology Co.,Ltd. It can connect power devices or data collectors through Bluetooth or WiFi, view various real-time data of power devices, control or set power devices, and download operation and fault records from power devices. The supported equipment includes: photovoltaic inverter, data collector and data acquisition rod.

Screenshots

Marina44 screens

Sit Connect3 screens

Verdict

The call

The clearest difference is iOS requirement: Sit Connect at 13.0 against Marina4's 15.0. On price, update cadence, ads and in-app purchases 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

Marina4 ships an update fortnightly, Sit Connect monthly. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 7 level

Marina4 versus Sit Connect: the parameters behind the verdict, then further details
Parameter	Marina4	Sit Connect
Price	Free	Free
Positive reviews	0.0% of reviews	—
Update frequency	Fortnightly — better	Monthly
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	15.0	13.0 — better
Further details — not scored
Size	33 MB	67 MB
Age rating	4+	4+
Developer	MARINA 4 SRL	Chengdu Sit New Energy Technology Co.,Ltd

In-app purchases

None

Marina4

No in-app purchases

None

Sit Connect

No in-app purchases

Questions

Is Marina4 free?

Marina4 is free to download, with no in-app purchases.

Is Sit Connect free?

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

Do Marina4 or Sit Connect have ads?

Neither Marina4 nor Sit Connect shows ads.

Which is updated more often, Marina4 or Sit Connect?

Marina4 ships an update fortnightly, and Sit Connect monthly. Most recently, Marina4 was updated on October 8, 2026 and Sit Connect on October 24, 2026.