Comparison

Seafarers App vs Mariner's Draft Survey

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

Head to head
About

Seafarers App

Features
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The Seafarers App is designed to bring seafarers worldwide together on one platform. Key Features: β€’ Seatime Calculation: Effortlessly calculate your total seatime and rank-specific seatime. β€’ Professional CV Generator: Generate a professional CV recognized by over 50 manning agencies globally. β€’ Document Expiry Alerts: Stay updated about your document expirations with timely notifications. β€’ Upcoming Duty-Free Online Shop: Soon, enjoy an exclusive duty-free shopping experience designed for seafarers worldwide. Seafarers are the backbone of global trade. Let’s unite and thrive together on one platform!

About

Mariner's Draft Survey

Features
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Mariner's Draft Survey is the draft survey and cargo planning app for bulk carrier officers. Built by a Chief Officer, it works from your own ship's tables and shows the working behind every figure, so you can check the calculation, not just trust it. DRAFT SURVEY β€’ Six drafts, forward, midships and aft, port and starboard, on a ship diagram β€’ Corrections to the perpendiculars, mean of means, trim, list and hog or sag β€’ Hydrostatic interpolation from your vessel's own table β€’ First and second trim corrections, and the dock water density correction β€’ Ballast, fresh water, fuel and other deductibles from your sounding tables, with trim and list corrections β€’ Net cargo by difference, with lightship and constant β€’ Tap any figure for its formula and the numbers that went into it β€’ A signed PDF report with your company's name and logo STOWAGE AND LOADING β€’ Stowage Plan: share the cargo between the holds for the trim you want, loading or discharging, with a second cargo or on top of cargo already aboard β€’ Sequence Plan: pours and ballast steps the terminal can work, with trim checked at every step β€’ Manual Stowage: when the stow is already decided and you just want the sheet β€’ Trimming Calculator and Grab Counter: the last tonnes for the final trim, counted grab by grab, with an ETA for each hold β€’ Hatch by Hatch: a fair figure per hold when the shore figures don't add up to your survey CARGO VOYAGE PLANNER β€’ How much she can lift, and which limit sets it β€’ Every limit on the passage in one answer: load line zones and seasons, channel depths with your under-keel clearance, berth drafts and air draft under bridges β€’ Load lines checked by displacement and at the mark amidships, using your certificate FWA β€’ Fuel, water and endurance to every waypoint, with ECA and port rates β€’ Enter the drafts and figures measured at any port, and the rest of the voyage is worked from them β€’ A passage plan report to print or share AT THE SHIP'S SIDE β€’ Draft Reader: read the marks off a photo when you can't read them by eye β€’ Heel Meter: work out the seaside draft you can't read from the heel and the side you can β€’ Ballast Watch: live pumping progress from your soundings, with finish times and alarms β€’ Conditions: drafts in new water, and the most she may load in any zone YOUR VESSEL, YOUR DATA β€’ Import hydrostatic and tank tables from Excel or CSV, and keep a profile for each ship β€’ Each ship keeps her own survey and plans; history is listed by vessel β€’ Back up everything to one file, and restore it on a new phone β€’ No account, no sign-up, no ads and no tracking. Works fully offline, and nothing leaves your phone. A full user manual is built in, and at marinershandapp.com/draftsurvey. Planning tools are an aid to the officer's own calculation and judgement: check every figure before loading.

Screenshots

Seafarers App3 screens
Mariner's Draft Survey4 screens

Verdict

The call

Seafarers App and Mariner's Draft Survey are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Seafarers App ships an update every 6 days, Mariner's Draft Survey every 4 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
Seafarers App versus Mariner's Draft Survey: the parameters behind the verdict, then further details
ParameterSeafarers AppMariner's Draft Survey
PriceFreeFree
Update frequencyEvery 6 daysEvery 4 days β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod β€” betteriPhone, iPod
Requires iOS15.0 β€” better15.5
Further details β€” not scored
Size42 MB75 MB
Age rating17+4+
DeveloperHasan Raza AnjumBurak Yesilirmak

In-app purchases

None

Seafarers App

No in-app purchases

None

Mariner's Draft Survey

No in-app purchases

Questions

Is Seafarers App free?
Seafarers App is free to download, with no in-app purchases.
Is Mariner's Draft Survey free?
Mariner's Draft Survey is free to download, with no in-app purchases.
Do Seafarers App or Mariner's Draft Survey have ads?
Neither Seafarers App nor Mariner's Draft Survey shows ads.
Which is updated more often, Seafarers App or Mariner's Draft Survey?
Seafarers App ships an update every 6 days, and Mariner's Draft Survey every 4 days. Most recently, Seafarers App was updated on November 8, 2026 and Mariner's Draft Survey on October 31, 2026.

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