# Marine Survey Assistant — Marine Survey

> Marine survey and calculation tools for seafarers and maritime professionals. (iPhone/iPad app by Stanislav Soroka.)

- Source: https://appshunter.io/ios/app/marine-survey-assistant/id6475769290 (this page in markdown: same URL + `.md`)
- Developer: [Stanislav Soroka](https://appshunter.io/developer/1701402639)
- Category: Education
- Price: Free with in-app purchases
- Rating: 3.00/5 from 2 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 143 MB
- Languages: American English
- Released: 2024-01-26
- Data updated: 2026-06-11
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/marine-survey-assistant/id6475769290/reviews.md

## What is Marine Survey Assistant?

***This is a Free Offline version of Marine Survey with some Paid features but a lot of Free content and calculators. If you want to use the Full version (all included), please download Marine Survey Pro

- Marine News
- My Documents
- MARGRAM
- Contract Tracker
- Trusted Crewing Companies
- Draft Survey Calculator (manual / auto)
- Ballast Calculator (manual / auto)
- Oil Calculator (manual / auto)
- Cargo Trimming Calculator (manual / auto)
- Stowage Plan Calculator (auto)
- ETA Calculator
- Slip Calculator
- Main Engine Power Calculator
- Unit Converter
- Humidity Calculator
- List Calculator
- Interpolation Calculator
- Squat & UKC Calculator
- Changing Draft and GM Calculator
- Port Log Book
- IALA Buoyage System
- Country Flags
- Video Courses
- Theory for any crew member 

Marine Calculators:

- Draft Survey Calculator: Manual and automatic calculation of loaded / unloaded cargo.
- Ballast Calculator: Easy auto / manual calculation quantity of ballast water on board. Just add Vessel - Ballast tanks - Tank Tables and calculate quantity of ballast in tanks in a seconds
- Stowage Plan Calculator: Auto calculation of cargo by holds, using SF' of cargo as well as the necessary entries in the port for arrival and departure.
- Slip Calculator: Calculator for engineers. Slip of the propeller in water, i.e. the difference between the actual speed of the ship and the one it would have if the propeller didn't rotate in water, but was screwed into a solid body
- Main Engine Power Calculator: Calculation of Main Engine Power for Engineers
- ETA Calculator: Quick calculation of the date and time of the ship's arrival, as well as calculation of speed you have to keep to arrive at a given time
- Cargo Trimming Calculator: Easy auto / manual Trimming at the end of loading. Calculation quantity of cargo to be loaded in Cargo Holds at the end of loading and get an even keel or requested trim.
- Unit Convetrer: Quickly conversion of units such as Stowage Factor, Volume, Length, Speed, Temperature
- Humidity Calculator: Relative Humidity Calculation.
- Oil Calculator: Easy and fast manual and auto calculation of Oil and Fuel on board.
- List Calculator: Calculation of heel in degrees for navigators.
- Interpolation Calculator: Liner and Bilinear Calculator
- Squat & UKC Calculator: Calculation of Squat and Under Keel Clearance
- Changing Draft and GM Calculator: Change in ship’s draft and GM when entering water with different density.
- Theory and Useful content for any crew member.

Crewing Companies:

- Application Form sending
- Brief Company information page
- Vacancies for seamen

Partners:

- Video Cources for seafarers

Marine News:

- All important news for seamen
- Always be aware of what is happening at sea

Weather Condition:

- Weather tracking at sea (material from open source PassageWeather)

My Documents:

Keep all your Marine Documents in one place
- Unlimited Documents
- Upload pdf and images
- 3 month notification before expiry date

Port Log Book:

- Fast entries in Port
- Entries for mooring / unmooring
- Daily port entries

Video Courses (Russian language):

- Draft Survey
- Program Draft Survey
- Grain Stability

Theory and Useful content:

- Draft Survey
- Grain Stability
- Helicopter Operations
- Fire Control and LSA
- Medical First Aid, and more.
Content will be constantly updated

IALA Buoyage System:

- IALA Buoyage System for Mariners
- Pictures of buoys and rules 
- Location by regions A and B

Country Flags:

- Countries and their flags graphically

We are constantly adding new features for your convenience.

## Key features

- Draft Survey Calculator
- Ballast Calculator
- Oil & Cargo Calculators
- ETA & Slip Calculators
- Unit Converter
- Port Log Book
- Marine News & Documents

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Draft Survey Calculator | $17.99 | one-time |
| Remove Ads | $4.99 | one-time |
| Ballast Calculator | $14.99 | one-time |
| Video Courses | $9.99 | one-time |
| Сargo Trimming Calculator | $14.99 | one-time |
| Oil Calculator | $14.99 | one-time |
| Draft & GM Calculator | $7.99 | one-time |
| ME Power Calculator | $6.99 | one-time |
| Squat & UKC Calculator | $5.99 | one-time |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/marine-survey-assistant/id6475769290/reviews.md

### 5/5 — Perfect

*2026-02-20*

Gets the job done. Very good app. Will be getting the pro version next. Thanks!!

### 1/5 — Scammer

*2025-07-08*

Scam

### 5/5 — Perfect

*2025-04-23*

Gets the job done. Very good app. Will be getting the pro version next. Thanks!!

## Frequently asked questions about Marine Survey Assistant

### Does Marine Survey Assistant have ads?

Yes, Marine Survey Assistant contains advertisements. This is common for free applications that offer a wide range of features and content.

### What is the price of Marine Survey Assistant?

Marine Survey Assistant is available for free. While there are paid features, a significant amount of content and calculators are accessible without charge.

### What devices does Marine Survey Assistant support?

Marine Survey Assistant is supported on iPhone and iPod devices. It is designed for Apple's mobile operating system.

### How often is Marine Survey Assistant updated?

The latest version of Marine Survey Assistant was released on September 22, 2025. Updates are provided to ensure the app remains functional and current.

### What is the age rating for Marine Survey Assistant?

Marine Survey Assistant has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger individuals.

### Can I track my progress with Marine Survey Assistant?

While the app offers educational content and video courses, it does not explicitly mention progress tracking features for these materials. Users can manage their documents and contracts within the app.

### What kind of learning methodology does Marine Survey Assistant use?

Marine Survey Assistant provides theoretical content and video courses for crew members, covering various aspects of marine operations and calculations. It aims to educate users through practical tools and informational resources.

### Does Marine Survey Assistant offer certifications?

The provided information does not indicate that Marine Survey Assistant offers any certifications. Its focus is on providing tools, information, and educational resources for marine professionals.

## Version history (last 5 releases)

### 3.5.4 — 2025-09-22

Ver. 3.5.4
1. Updated contact details for better communication
2. Improved in-app message submission form for faster and easier support
Stay tuned for more improvements!

### 3.5.1 — 2025-06-06

Ver. 3.5.1
We’ve fixed the backup functionality for the calculators.
Thank you for your feedback and support!

### 3.5.0 — 2025-05-30

Ver.3.5.0
- Added Contract Tracker: Track seafarer contracts with reminders, notes, and visual time progress

### 3.3.6 — 2025-01-04

What's New i Version 3.3.6
- Keyboard Bug Fixed:
You can now seamlessly input decimal numbers
- Performance Enhancements:
Optimized app performance for a faster and smoother experiance

### 3.3.5 — 2024-12-07

We’ve updated the Privacy Policy link in the app to reflect recent changes and improvements to our website. This update ensures seamless access to the latest policy details. Thank you for staying with us!

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## More apps by Stanislav Soroka

- [Marine Survey Pro](https://appshunter.io/ios/app/marine-survey-pro/id6458737068)
- [Українці в Греції](https://appshunter.io/ios/app/id6503212247)
- [Bridge Calc: Draft & Ballast](https://appshunter.io/ios/app/bridge-calc-draft-and-ballast/id6745449412)
- [Engine Calc: Fuel & Slip](https://appshunter.io/ios/app/engine-calc-fuel-and-slip/id6745450059)
- [ETA Calculator](https://appshunter.io/ios/app/eta-calculator/id6747178906)

All apps by Stanislav Soroka: https://appshunter.io/developer/1701402639

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*