Anchor Sentry Downloads & RevenueAnchor Sentry · App Store
Anchor Sentry is #12 in Navigation Paid in Indonesia and charting in 2 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperMichael Dieter Konz
CategoryNavigation
Price3.99 USD
Released
Rating★ 4.0 (4)
Version2.12.2
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)1k+ worldwide
📈New best rank in the overall chart: #160📈Entered the top 10📦Updated to version 2.12.2🆕First spotted by AppInsider📦Version 2.12.1🆕Released on the App Store
Full timeline · 14 events
- 📈Anchor Sentry new best rank in the overall chart: #160Top Paid · All Apps · ID
- 📈Anchor Sentry entered the top 10Top Paid · Navigation · ID
- 📈Anchor Sentry charting in a new country in 2 chartsIndonesia · Turkey
- 📈Anchor Sentry entered the top 100Top Grossing · Navigation · ID
- 📈Anchor Sentry entered the top 100Top Paid · Navigation · GB
- 📈Anchor Sentry charting in a new countryUnited Kingdom
- 📈Anchor Sentry entered the top 10Top Paid · Navigation · DE
- 📈Anchor Sentry entered the top 100Top Paid · Navigation · US
- 📈Anchor Sentry charting in a new countryUnited States
- 📈Anchor Sentry entered the top 100Top Paid · Navigation · DE
- 📦Anchor Sentry updated to version 2.12.2• Fixed a possible freeze when starting the app.
• Fixed a rare crash while the proximity alert is active.
• New: at start, the app now lets you know when a newer version is available in the App Store. You can postpone the notice or skip that version, and it never appears while an anchor watch is running.… more - 🆕Anchor Sentry first spotted by AppInsider#14 in Top Paid · Navigation · Germany
- 📦Anchor Sentry version 2.12.1- Auf Geräten mit iOS 27 wird für die Positionsbestimmung jetzt der speziell für Boote eingeführte Aktivitätstyp verwendet, was die GPS-Genauigkeit verbessert und fehlerhafte Positionssprünge sowohl vor Anker als auch während der Fahrt reduziert.
- Ein Fehler wurde behoben, durch den auf iOS 27 nicht mehr alle Buttons der Werkzeugleiste auf der Kartenansicht angezeigt wurden und dadurch teilweise nicht mehr erreichbar waren.
- Die Einstellung "Leiste" für die Zoom-Buttons wurde entfernt (Einstellungen → Benutzeroberfläche → Zoom buttons); betroffene Geräte zeigen die Buttons stattdessen jetzt links an.… more - 🆕Anchor Sentry released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.0 ★
4 ratings
Measured
Best rank now
#12
Navigation PaidMeasured
Anchor Sentry at a glance
AI summary written from our chart and store data, 2026-11-06. It can be wrong: check the numbers above.
Anchor Sentry is a paid navigation tool for boaters that monitors vessel position at anchor, alerts users to dragging or proximity hazards, and supports multi-device synchronization. The app holds strong regional positions in Indonesia's paid Navigation charts (#5) and grossing rankings (#47), indicating solid monetization within its specific niche market despite limited global visibility.
Similar apps: Boating, Navionics Boating, iBoating
Anchor Sentry on the App Store
App details
App ID
1422478182
Publisher
Michael Dieter Konz
On the store since
Aug 2018
8 years on the store
Minimum OS
iOS 15+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN DE
Size
96 MB
Anchor Sentry downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Anchor Sentry's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Indonesia | NavigationPaid | #12 |
| Germany | NavigationPaid | #109 |
| Indonesia | NavigationGrossing | #87 |
| Indonesia | All AppsPaid | #160 |
Apps near Anchor Sentry on the chart
Navigation Paid, around #12.
Ratings
App Store, worldwide.
Rating
4.0 ★
4 ratings
Measured
Ratings
4
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.9★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Navigation apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about Anchor Sentry
From recent reviews.
About Anchor Sentry
Anchor Sentry is an app to monitor the ship's position at anchor and inform the skipper when the anchor is dragging and thus the ship leaves the setup perimeter.
Features:
- Show current position on GoogleMaps map or Navionics map (To gain
access to Navionics maps from this application, users with an active Navionics
subscription in the Navionics Boating application must register with their Navionics
credentials)
- Distance circles to help finding a good anchor position
- Drop anchor by tapping on map or by position or by bearing and distance
- Can be used for anchoring with shore lines by watching the heading rather than the position
- Tracks can be saves as GPX file for later processing
- Option to set up prohibited zones which will trigger an alert when entered. These can be used indepent of the anchor state
- Runs in the background even while other apps are used
- Unique sync functionality which allows to pair two or more devices together to see the ships position even while out to shore for dinner
- Barograph function included
- Display real echo sounder data from a providing NMEA server
- Optional compass overlay to help finding the bearing to the anchor
- Option to show current position visible to friends and family on the Anchor Sentry website
- Proximity alert between ships both using Anchor Sentry. To get warned when your neighbours anchor is dragging.
- Automatic anchoring feature
- Display maximum swinging circle
- Save favorite anchoring places with pictures
- Several setup options to customize your app
Features:
- Show current position on GoogleMaps map or Navionics map (To gain
access to Navionics maps from this application, users with an active Navionics
subscription in the Navionics Boating application must register with their Navionics
credentials)
- Distance circles to help finding a good anchor position
- Drop anchor by tapping on map or by position or by bearing and distance
- Can be used for anchoring with shore lines by watching the heading rather than the position
- Tracks can be saves as GPX file for later processing
- Option to set up prohibited zones which will trigger an alert when entered. These can be used indepent of the anchor state
- Runs in the background even while other apps are used
- Unique sync functionality which allows to pair two or more devices together to see the ships position even while out to shore for dinner
- Barograph function included
- Display real echo sounder data from a providing NMEA server
- Optional compass overlay to help finding the bearing to the anchor
- Option to show current position visible to friends and family on the Anchor Sentry website
- Proximity alert between ships both using Anchor Sentry. To get warned when your neighbours anchor is dragging.
- Automatic anchoring feature
- Display maximum swinging circle
- Save favorite anchoring places with pictures
- Several setup options to customize your app
Latest updates
2.12.2
• Fixed a possible freeze when starting the app.
• Fixed a rare crash while the proximity alert is active.
• New: at start, the app now lets you know when a newer version is available in the App Store. You can postpone the notice or skip that version, and it never appears while an anchor watch is running.
2.12.1
- Auf Geräten mit iOS 27 wird für die Positionsbestimmung jetzt der speziell für Boote eingeführte Aktivitätstyp verwendet, was die GPS-Genauigkeit verbessert und fehlerhafte Positionssprünge sowohl vor Anker als auch während der Fahrt reduziert.
- Ein Fehler wurde behoben, durch den auf iOS 27 nicht mehr alle Buttons der Werkzeugleiste auf der Kartenansicht angezeigt wurden und dadurch teilweise nicht mehr erreichbar waren.
- Die Einstellung "Leiste" für die Zoom-Buttons wurde entfernt (Einstellungen → Benutzeroberfläche → Zoom buttons); betroffene Geräte zeigen die Buttons stattdessen jetzt links an.