Comparison

inDTSmobile vs SeaTime Tracker

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

Head to head
About

inDTSmobile

Features
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*** PLEASE NOTE: To use inDTSmobile, it is necessary to be connected to the backend of an inVTS system provided by in-innovative navigation GmbH. *** This app serves as frontend of an inVTS system. inDTSmobile provides view and management of real-time martime traffic. It displays real-time positions of vessels along river sections or coastal waters on top of a nautical chart. Additionally, it presents all available information about the vessels in a table view. This app is suited to be used by port, water police and waterway authorities. Features: * view vessels on a live map and in a table view * get extended vessel and voyage data from inVTS database * notice alarms and warnings generated by inVTS Traffic Analysis System (TAS) * request detailed information about traffic signs and other map elements * display routes, warning areas and corridors * examine depth contours and tide forecasts * use on portable pilot units (PPUs) * follow planned voyages through difficult waterway sections * discover traffic picture in 3-D view

About

SeaTime Tracker

Features
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Track your sea time automatically, and walk into your CoC application with the testimonials your verifier expects. SeaTime Tracker is built for yacht crew, commercial crews and merchant officers working towards OOW, Master and other CoC qualifications. Add your vessel and we log your days at sea from real AIS data, then produce signature-ready PDF testimonials laid out for MCA, PYA and Nautilus verification. Automatic tracking needs your vessel to transmit AIS. No AIS on board? You can log your sea time manually instead. WHY CREW CHOOSE SEATIME TRACKER • Automatic sea time: pick the vessel and we fill in the dates from its AIS movements • Import past sea time: add passages from your vessel's AIS history for the periods you were aboard before you joined the app (free check first, one-off purchase) • Your progress at a glance: confirmed sea days on Home, matching the report you submit • Testimonial PDFs laid out for PYA, Nautilus and MCA sign-off • Sign in the app: add your signature, then send the PDF to the master to stamp and sign • MCA and USCG pathways, each counted the way that authority counts a sea day, including every MCA yacht ticket from Yacht Rating to Master (Yachts) Unlimited • Commercial crews: clock in and out of a shift so only the hours you worked count • Rotational crew: switch Off board when you go on leave and tracking pauses until you're back • Every service type: watchkeeping, standby, yard and service in port • Night watch hours, trade area and rank recorded on every entry • Certificate expiry reminders at 90, 60, 30 and 7 days • iPhone, iPad and Mac BUILT FOR THE TICKETS YOU'RE WORKING TOWARDS Whether you're a deckhand building time towards OOW (Yachts), a watchkeeper going for Chief Mate or Master 3000gt, a US mariner working towards a USCG credential, or a cadet logging sea phases, SeaTime captures what the verifiers ask for: dates, vessel, tonnage, role, watchkeeping hours, trade area and master sign-off. NEVER LOSE A DAY OF SEA TIME Paper logbooks get lost. Spreadsheets break. SeaTime Tracker backs up every entry to your account, so when you apply your whole history exports in seconds, already laid out. CERTIFICATES THAT WON'T CATCH YOU OUT Keep track of every ticket, medical, visa and STCW course. Reminders arrive well before each expiry date, so your next contract never slips on a lapsed ENG1. For your privacy the app keeps only the details and dates, never a copy of the certificate. ABOUT FORELAND MARINE SeaTime Tracker is made by Foreland Marine, a UK consultancy run by working mariners. Every feature is shaped by feedback from yacht crew, officers and training schools. Got a suggestion? We read every email. SUBSCRIPTION Your first month is free for new subscribers. After the free month: • Monthly: GBP 4.99 • Annual: GBP 49.99 (save 17%) Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage in App Store settings. PRIVACY & SUPPORT Your sea time is yours. We never sell your data and you can export or delete everything at any time. Privacy policy: forelandmarine.com/privacy-policy Terms of use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

inDTSmobile4 screens
SeaTime Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: inDTSmobile at none against SeaTime Tracker's 4. SeaTime Tracker's advantage is update cadence (weekly vs every 2 months) and iOS requirement (15.1 vs 18.6). On price, ads 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. SeaTime Tracker sells 4 in-app purchases, starting at $5.99 per month. inDTSmobile asks for nothing beyond the download.

UpkeepUpdate frequency

inDTSmobile ships an update every 2 months, SeaTime Tracker weekly. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 3 level
inDTSmobile versus SeaTime Tracker: the parameters behind the verdict, then further details
ParameterinDTSmobileSeaTime Tracker
PriceFreeFree
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.615.1 — better
Further details — not scored
Size71 MB45 MB
Age rating4+4+
Developerin-innovative-navigation GmbHForeland Marine Consultancy Ltd.

In-app purchases

None

inDTSmobile

No in-app purchases

4 purchases

SeaTime Tracker

Subscriptions2
  • Monthly Subscription1 Month trial$5.991 Month
  • Annual Subscription1 Month trial$49.991 Year
One-time2
  • Up to 6 months of history$9.39
  • Up to 12 months of history$19.99

Questions

Is inDTSmobile free?
inDTSmobile is free to download, with no in-app purchases.
Is SeaTime Tracker free?
SeaTime Tracker is free to download, with in-app purchases available.
Do inDTSmobile or SeaTime Tracker have ads?
Neither inDTSmobile nor SeaTime Tracker shows ads.
Which is updated more often, inDTSmobile or SeaTime Tracker?
inDTSmobile ships an update every 2 months, and SeaTime Tracker weekly. Most recently, inDTSmobile was updated on October 29, 2026 and SeaTime Tracker on October 31, 2026.

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