# Anchor Alarm: ZENKOU PRO — Boat Monitor Onboard & Ashore

> Real-time anchor alarm and remote boat monitoring for boaters. (iPhone/iPad app by Unitio A.)

- Source: https://appshunter.io/ios/app/anchor-alarm-zenkou-pro/id1568849324 (this page in markdown: same URL + `.md`)
- Developer: [Unitio A](https://appshunter.io/developer/1566586314)
- Category: Navigation, Sports
- Price: Free with in-app purchases
- Rating: 4.50/5 from 174 App Store ratings · 46 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 310 MB
- Languages: American English, Arabic, Catalan, Croatian, Dutch, French (France), German (Germany), Greek, Italian, Japanese and 5 more
- Released: 2021-05-25
- Data updated: 2026-08-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/anchor-alarm-zenkou-pro/id1568849324/reviews.md

## What is Anchor Alarm?

With cutting-edge features that keep you connected both onboard and ashore, ZENkou ensures you stay safe and informed—no matter where you are.

INSTANT LIVE ALERTS & REMOTE MONITORING
Zenkou instantly notifies preconfigured mobile devices when a dragging anchor is detected, empowering timely action.

With LIVE technology, boat owners can remotely track their vessel’s location, monitor progress, and receive anchor drifting alarm from ashore.

FLOTILLA MANAGEMENT
Zenkou LIVE N2N offers the flexibility to receive alerts from multiple boats and share them with unlimited followers.

ALWAYS ON WATCH (24/7)
Enable Zenkou to run in the background, even when your iPhone is locked or you're using other apps.

GUARANTEED THROUGH EXTENSIVE TESTING
Over 10,000 boaters trust Zenkou. They've enjoyed more peaceful sleep and saved their boats by responding to an anchor watch alarm. We conduct over 100 anchoring test days annually in diverse weather conditions.

EFFICIENT POWER USAGE
Maximized security at anchor, optimized battery life.

NAVIONICS®*, SATELLITE, ONLINE AND OFFLINE MAPS
Wide selection of maps featuring essential safety details and depth contours.

WINDY® WEATHER FORECASTS: Stay Safe, Stay Comfy*
Customized for Anchoring, Providing Accurate Predictions for Wind and Swell.

MARINE BAROMETER*
Detect rapid changes in weather conditions well before they become visible. Because when it comes to the sea, knowledge isn't just power, it's protection.

AI ANCHOR WATCH
Customized anchor watch experience to suit your specific boat.

SOCIAL ANCHOR
Prioritize safety and build camaraderie during your anchor watch with Zenkou anchor alarm. Encourage your neighbors to use the app and effortlessly share your anchor points and swing circles, fostering mutual awareness, a strong community, and a safer anchoring experience for all.

ANCHOR ALARM SETTING OPTIONS 
Basic: Set the anchor location with a single tap when the device is directly above the anchor point.

Long-Press Gesture: Easily navigate the map to your desired anchor location and set it with a long press.

Bearing/ Distance: Simply point the iPhone to the anchor guaranteeing precise anchor alarm based on your preferred direction and distance from your location.

Manual Entry: Input the coordinates of your current anchor position.

Heat map: Drop the anchor and adjust the anchor rode length to your preference, allowing the boat to swing freely for a few minutes. Monitor the boat's progression on the map, and with a convenient long tap, set the anchor point and effortlessly fine-tune the anchor alarm settings to seamlessly align with the unique behavior of your boat and the surrounding environment.

Share: Receive and Validate anchor alarm settings from other Zenkou users on the same boat via messaging or email.

ANCHORING MASTERY, EXCLUSION ZONES 
Mark exclusion zones by drawing them with your finger. Ideal for tight anchorages and advanced anchoring techniques like shore lines, bow-stern anchoring, etc.

HEAT MAPS
Gain valuable insights by visually tracking your boat's progression at anchor, revealing patterns, trends, and concentrations.

NMEA WIFI ACCESS
Get real-time boat data like depth and wind speed on your iPhone, available anytime, anywhere.

AIS
Stay informed about nearby vessels during your anchor watch without needing to step on deck.

APPLE WATCH
Receive iPhone alerts on your Watch or monitor your yacht in real time with the Anchor Watch LIVE app* by Zenkou

SERVICES
Enjoy essential features of ZENkou Anchor Pro at no cost! Services with an asterisk (*), such as Premium*, LIVE*, Barometer*, Anchor watch live app* and Navionics*, require a separate paid subscription. Navionics® is a Garmin trademark.

CUSTOMIZABLE UNITS

MULTILINGUAL

ONLINE SUPPORT 24/7

Revolutionize your experience at anchor. Stay safer and better informed than ever before.
Crafted by sailors, for sailors.

GET IT FOR FREE NOW!

## Key features

- Instant live alerts
- Remote vessel tracking
- Flotilla management
- 24/7 background operation
- AI anchor watch customization
- Social anchor sharing
- Exclusion zone marking

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Remote LIVE Alerts- 1 week | $17.49 | per month |
| Remote LIVE Alerts - 1 week | $8.49 | per 7 days |
| Remote LIVE Alerts - 1 Year | $25.49 | per year |
| Premium Features - 1 month | $9.99 | per month |
| Premium Features - 1 year | $29.99 | per year |
| Marine Barometer - 1 month | $7.99 | per month |
| Marine Barometer - 1 year | $27.99 | per year |
| Premium Features - 1 month | $8.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium Features - Lifetime | $99.99 | one-time |
| Barometer Lifetime | $49.99 | one-time |
| LIVE Features - Lifetime | $99.99 | one-time |


## What do users think of Anchor Alarm?

Overall sentiment: negative

**Pros**

- 👍 Easy to use anchor alarm
- 👍 Good for peace of mind
- 👍 Remote monitoring useful
- 👍 Works with Navionics
- 👍 Accurate and effective
- 👍 Good customer support response
- 👍 Precise alarm function
- 👍 Weather forecast accuracy
- 👍 Works well with Apple Watch
- 👍 Intuitive interface
- 👍 Great for checking position
- 👍 Reliable functions
- 👍 Good for long anchorages
- 👍 Swift WhatsApp support

**Cons**

- 💰 Too expensive
- 💸 High purchase prices
- 💸 Subscription is expensive
- 🐛 False alarms
- 🐛 App crashes
- 🐛 Subscription not working
- 🐛 Cannot unlock premium features
- 🐛 No response from support
- 🐛 Misleading advertising
- 🐛 Remote monitoring not possible
- 🐛 No free trial
- 🐛 Signal disappears after 24h
- 🐛 Not intuitive
- 🐛 Charged without permission
- 🐛 No way to cancel
- 🐛 Paid for lifetime, still needs subscription
- 🐛 Live monitoring costs extra
- 🐛 Annoying personalized data collection
- 🐛 Tracking always on
- 🐛 Not usable
- 🐛 Double charged
- 🐛 Subscription messages are annoying
- 🐛 Screen taken by ads
- 🐛 Does not work easily
- 🐛 License issues
- 🐛 App forgets licenses
- 🐛 Money grab
- 🐛 Scam app
- 🐛 Initial difficulties with app
- 🐛 Waiting for support
- 🐛 Misunderstanding subscriptions
- 🐛 Requires registering and paying twice for remote use
- 🐛 Remote function requires another subscription
- 🐛 Live monitoring not included in lifetime
- 🐛 Ads appear after subscription

**Commonly reported bugs**

- Premium features not unlocking
- Customer support unresponsive
- Remote monitoring not working
- App crashes on opening
- Alarm triggers without reason
- Signal disappears after 24 hours
- Charged without permission
- Subscription not working
- Paid for lifetime, still requires subscription
- Live monitoring not included in lifetime subscription
- Licenses not working consistently
- App forgets purchased licenses
- Double charging for app/features
- Remote monitoring requires additional payment
- Annoying subscription pop-ups after purchase
- App does not work easily after payment

**Most requested features**

- Clarification on double payment for remote use
- Instantaneous start-up without ads
- Option to disable personalized data collection
- Ability to hide tracking prompts
- Make remote monitoring functional
- Provide a free trial

## Recent user reviews (10 of 46)

All indexed reviews: https://appshunter.io/ios/app/anchor-alarm-zenkou-pro/id1568849324/reviews.md

### 2/5 — App ist viel zu teuer

*2026-06-07*

Kaufpreise: 60€ für die „Premium“ App Funktionen, 99€ für die „live“ Funktion, 55€ für das Barometer. Wer ist bereit über 200€ für eine Anker-App auszugeben??? Als Abo würden die Funktionen 100€ pro Jahr kosten; das ist Wucher. Funktionen sind ok aber der Preis ist lächerlich.

### 4/5 — Overall, great anchor alarm!

*2025-12-28*

We love this anchor app and really want to give it five stars. As full time cruisers that were at anchor for two years straight in the South Pacific this was our go to anchor alarm. It has as the bells and whistles that are important to us. 

In 90% of the cases we’re satisfied with the free version. In rare instances we want the premium features and at a price of $25 for the year we felt it was worth it. We subscribed in March, but unfortunately we have not been able to unlock the premium features. A couple times over the past nine months we wanted to access premium features, unable to do so we reached out to customer support (at least twice) and our message fell into a black hole and there was no response. It’s possible it’s user error on our part (what email did we use? It was so long ago!), but we can’t work that out without getting a response back from Zenkou.

Again, this is a fantastic anchor alarm, even at the fee base version. We just wish we could contact support.

### 1/5 — Inutile si vous voulez une « surveillance à distance »

*2025-10-28*

Annonce mensongère, vous ne pouvez pas suivre votre position a distance, sauf si vous êtes faite une demande ponctuelle de partage de position, mais pour cela il faut être sur le bateau… DONC INUTILE. Dommage qu il faille payer pour s apercevoir de cela..

### 5/5 — Superbe application, abonné à vie, me préviens sur mon tel en laissant ma tablette connectée à bord.

*2025-09-09*

Je recommande les yeux fermés

### 3/5 — Gut aber nervt.

*2025-08-25*

Benutze es das zweite Jahr in Folge. An sich tut das was es soll, ist überschaubar und ausreichend. Online sind auch die Landkonturen sichtbar. Leider wird das Bildschirm zu 1/3 von Nötigung eingenommen. Es geht um personalisierte Datensammlung. Das Tracking wollen sie am liebsten IMMER eingeschaltet, und sich registriert und angemeldet haben. Das lässt sich nicht ausblenden. Nötigung nervt!

### 1/5 — Erro/ problema

*2025-08-23*

Não funciona !!

### 1/5 — Application complètement inutile, pas aboutie, avec de nombreuses défaillances … à fuir !

*2025-07-22*

Pas d’essai gratuit, je comprends maintenant pourquoi ! Personne ne l’achèterait si on avait la possibilité de l’essayer gratuitement avant. L’alarme se déclenche sans raison, après 24h le signal disparaît donc pas possible de l’utiliser sur un mouillage long, pas intuitif, cher etc… rien à voir avec les bonnes applications existantes !
Je l’efface et ne l’utiliserai plus.

### 1/5 — Be careful - DO NOT TOUCH

*2025-06-17, version 2.4.32*

You charged me without permission. 60 euro. There is no way to access and there is no way to cancel. How can you be still in business? Please return my money back. You should not be on apple.

### 5/5 — A great app and a super service

*2025-06-07*

I am still discovering the app but I am confident the five stars is deserved! Combined with Navionics map, it has been extremely useful, allowing to set an alarm if you drag your anchor beyond a given radius. I found effective and accurate. The main challenge is manipulating your phone and the windlass at the same time when dropping the anchor. A matter of practice. And if you have questions the WhatsApp msg is swiftly answered and the problem I had was solved. On that basis seriously considering subscribing to support the app. Fabrice

**Developer response:** Hi Fabrice—thanks a ton for the five-star rating and for championing Zenkou Anchor Watch! We’re thrilled the app (paired with Navionics) is making your anchoring smoother, even with the windlass–phone juggle.

To everyone reading: our crew is available 24 / 7. Whether you’d like expert anchoring pointers, have feature ideas, or simply want to share a cool cruising story, message us on WhatsApp or email SUPPORT@ZENKOU.COM and you’ll get a speedy, real-human reply.
Happy sailing and safe anchoring!

### 1/5 — Suscription not works

*2025-04-07, version 2.4.29*

We paid two suscriptions and is not working. We cannot be a leader neither follower

## Frequently asked questions about Anchor Alarm

### What does the Anchor Alarm: ZENKOU PRO app do?

This app provides real-time anchor alerts and remote boat monitoring. It notifies users instantly if their anchor is dragging, allowing for timely action. The app also offers features for tracking vessel location, managing multiple boats, and customizing anchor watch settings.

### What are the key features of ZENKOU PRO?

Key features include instant live alerts for anchor dragging, remote vessel tracking, flotilla management for multiple boats, 24/7 background operation, AI anchor watch customization, social sharing of anchor points, and the ability to mark exclusion zones on the map.

### Is Anchor Alarm: ZENKOU PRO free to use?

The app is free to download and use with in-app purchases. This means that while the core functionality is available, certain advanced features or services may require a purchase.

### What devices is ZENKOU PRO compatible with?

The app is designed to run on iPhones and can operate in the background even when the phone is locked or other apps are in use. It also integrates with various map services like Navionics® and provides weather forecasts.

### How can ZENKOU PRO help me with anchoring?

ZENKOU PRO enhances your anchoring experience by providing precise anchor alarm settings, including basic tap-to-set, long-press gestures, bearing/distance, and manual coordinate entry. It also allows for heat map visualization to fine-tune anchor rode length and offers social anchoring features for community safety.

## Version history (last 5 releases)

### 2.4.32 — 2025-06-04

Thanks for using Zenkou! We fixed user-reported issues and added new features to give you even more peace of mind while you're at anchor on your boat. If you're enjoying the app, please consider leaving a review or rating!

### 2.4.31 — 2025-05-16

Thanks for using Zenkou! We fixed user-reported issues and added new features to give you even more peace of mind while you're at anchor on your boat. If you're enjoying the app, please consider leaving a review or rating!

### 2.4.30 — 2025-04-09

Thanks for using Zenkou! We fixed user-reported issues and added new features to give you even more peace of mind while you're at anchor on your boat. If you're enjoying the app, please consider leaving a review or rating!

### 2.4.29 — 2025-04-03

Thanks for using Zenkou! We fixed user-reported issues and added new features to give you even more peace of mind while you're at anchor on your boat. If you're enjoying the app, please consider leaving a review or rating!

### 2.4.28 — 2025-03-28

Thanks for using Zenkou! We fixed user-reported issues and added new features to give you even more peace of mind while you're at anchor on your boat. If you're enjoying the app, please consider leaving a review or rating!

## Apps similar to Anchor Alarm

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Anchor! drag alarm](https://appshunter.io/ios/app/anchor-drag-alarm/id661180281) | 4.4 (275) | $4.99 | Navigation |
| [Aqua Map Boating](https://appshunter.io/ios/app/aqua-map-boating/id919552329) | 4.7 (13,587) | Free | Navigation |
| [Anchor Alarm with Late Set](https://appshunter.io/ios/app/anchor-alarm-with-late-set/id1292028990) | 4.6 (395) | Free | Navigation |
| [Anchor Alarm / Watch](https://appshunter.io/ios/app/anchor-alarm-watch/id1428485893) | 4.7 (801) | Free | Navigation |
| [iNavX: Marine Navigation](https://appshunter.io/ios/app/inavx-marine-navigation/id286616280) | 4.8 (21,564) | Free | Navigation |
| [Boating Logbook: Skipper](https://appshunter.io/ios/app/boating-logbook-skipper/id671764434) | 4.6 (35) | Free | Navigation |

## More apps by Unitio A

- [Travel Map Zenkou](https://appshunter.io/ios/app/travel-map-zenkou/id1670708909)
- [Anchor Watch LIVE Zenkou FOLWR](https://appshunter.io/ios/app/anchor-watch-live-zenkou-folwr/id6463221576)

All apps by Unitio A: https://appshunter.io/developer/1566586314

## Related topics

[anchor watch live zenkou folwr](https://appshunter.io/ios/topics/anchor-watch-live-zenkou-folwr) · [donia](https://appshunter.io/ios/topics/donia) · [boat watch pro](https://appshunter.io/ios/topics/boat-watch-pro) · [holdfast anchor alarm](https://appshunter.io/ios/topics/holdfast-anchor-alarm) · [anchor alarm](https://appshunter.io/ios/topics/anchor-alarm) · [anchor](https://appshunter.io/ios/topics/anchor) · [ankora](https://appshunter.io/ios/topics/ankora)

---

*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 2026-08-24.*