# Merdvakt — Vessel watch for fish farms

> Vessel watch for fish farms (iPhone/iPad app by Andrey Lee Tsyplakov.)

- Source: https://appshunter.io/ios/app/merdvakt/id6786506063 (this page in markdown: same URL + `.md`)
- Developer: [Andrey Lee Tsyplakov](https://appshunter.io/developer/1896742109)
- Category: Navigation, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: American English, Norwegian Bokmål
- Released: 2026-07-12
- Data updated: 2026-07-26
- User reviews in markdown: https://appshunter.io/ios/app/merdvakt/id6786506063/reviews.md

## What is Merdvakt?

Merdvakt keeps an eye on the waters around Norwegian aquaculture sites.

It combines official salmon-farm locations (BarentsWatch Fish Health) with live
vessel positions (BarentsWatch AIS) on one satellite map, so you can see at a
glance which boats are near your sea pens — and get a push the moment one is.

FEATURES
• Farm + vessel map — every salmon locality shown as a net-pen ring, with live
  AIS traffic colored by type (cargo, tanker, passenger, fishing, high-speed…).
• Watch a farm — tap a farm and set an alarm. Choose the trigger: on arrival
  (a boat enters the perimeter), activity (anything nearby), or on leaving.
• Approaching alerts — a push notification when a vessel comes within your set
  distance of a watched farm.
• See what a boat did — tap any vessel for its last-24-hour track. Trigger the
  alarm to draw the 24-hour paths of every boat near your farms, classified as
  passing through, circling the farm, or came-and-stayed.
• Watch tab — the vessels that have been near each farm in the last 24 hours,
  split into passing-by and stationary, with how long ago each passed.
• Analytics — live ship counts, breakdown by type and by flag, and the busiest
  and cleanest farms by traffic.
• Cut false alarms — exclude vessel types, and mute specific boats (e.g. the
  farm's own service vessel) so they never alert you.
• Norwegian time — a live 24-hour Oslo clock.

Exploring is always free: the map, live vessel traffic, 24-hour tracks, and an
alarm on one farm (up to 500 m), with positions refreshing as snapshots roughly
every five minutes.

MERDVAKT LIVE (optional subscription — US$2.99/month, auto-renewing) adds:
• Continuous live position updates (about every 25 seconds).
• Alarms on unlimited farms, and an alert distance up to 2 km.
• Per-farm visitor history — which vessels have passed a farm, how often, and when.
• Weekly and monthly traffic trends across all farms.
• Fine-grained alert exclusions by vessel MMSI, IMO, flag, or size.

Subscription terms: payment is charged to your Apple Account at purchase; it
renews automatically for US$2.99/month unless cancelled at least 24 hours before
the period ends. Manage or cancel anytime in your Apple Account settings. See the
Terms of Use and Privacy Policy linked in the app and on the App Store page.

Data is sourced from BarentsWatch / the Norwegian Coastal Administration and is
provided for information only — Merdvakt is not a navigation, safety, or security
system.

Terms of Use (EULA): https://leetsyplakov.github.io/Merdvakt-policies/terms.html
Privacy Policy: https://leetsyplakov.github.io/Merdvakt-policies/privacy.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Merdvakt Live | $2.99 | per month |



## Version history (last 1 release)

### 1.0 — 2026-07-13

No release notes.

## More apps by Andrey Lee Tsyplakov

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- [DopaEats](https://appshunter.io/ios/app/dopaeats/id6790622321)

All apps by Andrey Lee Tsyplakov: https://appshunter.io/developer/1896742109

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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 2026-07-26.*