App Store
Navigational marks
8 Oct 2026launched yesterday
–No ratings yetRead reviews
n/aApple doesn’t publish installs
Limited release · 4 countriesGermany, Denmark, Norway, Sweden
1.0latest version · today
Estimated downloads
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About
Sea Marks (Merimerkit / Sjömärken) is a learning app for the marks you meet on Finnish waters: buoys and beacons, chart symbols, waterway signs, lock and bridge lights, and international signal flags. Study at your own pace, then test yourself in a practice quiz. Wrong answers cost a life. Correct answers earn nautical miles and new ranks. Work in Finnish, English or Swedish. WHAT YOU CAN LEARN • Cardinal and lateral marks (IALA A) • Isolated danger, safe-water and special marks • Chart symbols used on Finnish nautical charts • Waterway signs: prohibitions, restrictions and information • Lock and bridge light signals • International Code of Signals flags QUIZ • Choose the topics you want to practise • Picture and name matching • Three lives per round • Watch an optional video for an extra life if you run out • Free play uses a small number of rounds that refill over time; ad-free play is unlimited MADE FOR STUDY, NOT FOR STEERING This app is a learning tool. Always check official charts, the List of Lights and local notices before you navigate. Languages: Finnish, English, Swedish. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://antavglobal.com/merimerkit-privacy-policyRead more
Sea Marks (Merimerkit / Sjömärken) is a learning app for the marks you meet on Finnish waters: buoys and beacons, chart symbols, waterway signs, lock and bridge lights, and international signal flags.
Study at your own pace, then test yourself in a practice quiz. Wrong answers cost a life. Correct answers earn nautical miles and new ranks. Work in Finnish, English or Swedish.
WHAT YOU CAN LEARN • Cardinal and lateral marks (IALA A) • Isolated danger, safe-water and special marks • Chart symbols used on Finnish nautical charts • Waterway signs: prohibitions, restrictions and information • Lock and bridge light signals • International Code of Signals flags
QUIZ • Choose the topics you want to practise • Picture and name matching • Three lives per round • Watch an optional video for an extra life if you run out • Free play uses a small number of rounds that refill over time; ad-free play is unlimited
MADE FOR STUDY, NOT FOR STEERING This app is a learning tool. Always check official charts, the List of Lights and local notices before you navigate.
Languages: Finnish, English, Swedish.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://antavglobal.com/merimerkit-privacy-policy
Store page changes
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Versions
- Version 1.0First seen · 9 Oct 2026
Countries
Limited release · 4 countries Soft launch
Apple lists this app in a small set of storefronts, a typical sign of a test or regional launch.
GermanyDenmarkNorwaySweden
Chart positions
Not seen in the charts we track yet.
