SailFreeGPS
SailFreeGPS Summary
SailFreeGPS is a ad-supported, with in-app purchases Android app in Sports by FredB. Released in Jan 2019 (7 years ago). It has about 1.5M+ installs and 8.3K ratings with a 4.51★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 87K monthly active users and generates around $<10K monthly revenue (45% IAP / 55% ads). Store metadata: updated Mar 14, 2026, version 264.
Recent activity: 6.2K installs this week (24.1K over 4 weeks) showing steady growth , and 14 new ratings this week View trends →
Data tracking: SDKs and third-party integrations were last analyzed on Mar 1, 2026. The app's network data flows (API traffic to/from the app and its SDKs) were last crawled on Oct 18, 2025.
Store info: Last updated on Google Play on Mar 14, 2026 (version 264).
SailFreeGPS was last scanned for SDKs 2026-03-01. Below is the overview of third party companies detected in the app. The full list of raw SDKs, app permissions and unknown SDKs is available here.
ironSource
AppLovin
Unity
Google
Square
Bumptech
Kotlin
Firebase
AdMob4.51★
Ratings: 8.3K
Screenshots
App Description
Bring your own navigation instrument on your smartphone or tablet.
Hello,
✓ SailFreeGPS displays current location, course (COG), speed (SOG), max speed, Trip distance, speed average and magnetic compass.
✓ SailFreeGPS displays COG and SOG history (6h) to help you to see trim effect on your sails.
✓ SailFreeGPS filters GPS information for more accuracy (average of an amount of last measures you can set).
✓ SailFreeGPS can share your position, COG, SOG to your friends.
✓ SailFreeGPS helps you during Man OverBoard maneuver (MOB). It stores the location and lead you to it.
✓ SailFreeGPS displays your track on google map (48h).
✓ SailFreeGPS helps you during Regatta with its countdown timer and its departure line
✓ You can store up to 8 waypoints and activate a GOTO function with ETA (Estimated Time to Arrival computation)
✓ You can save/load track to/from GPX/KML file
✓ You can calculate distance and heading
✓ You can use it on every boat, motor or sail boat.
✓ You can now activate an anchor alarm or a course alarm.
I am an amateur sailor who has decided to create this app after a Transatlantic cruise.
I add periodically functionalities to this app when I have some spare time.
Do not forget to calibrate your compass for better results.
Please send me an email for any question or problem : contact@sailfreegps.com
Encourage me to continue by subscribing to premium version.
List of features of Premium Version
Premium version DOES NOT CONTAIN ADS.
GPS INFO Tab:
✓ Double click on SPEED will reset trip, max and ags speed
✓ Long click on COURSE to display compass
✓ Double click on coordinates to display/hide position
Graph Tab:
✓ Double click COG graph to switch to full screen mode
MOB Tab:
✓ Displays of relative bearing of the MOB
✓ Displays of tack angles
✓ Double click graph to switch to full screen mode
Waypoint Tab:
✓ Up to 200 Waypoints
✓ Displays of relative bearing of Waypoint
✓ Displays of tack angles
✓ Double click graph to switch to full screen mode
Map Tab:
✓ Displays of SOG and COG (speed & course)
✓ Your track segments are displayed according to your speed
Anchor alarm:
✓ Anchor area can be a polygon and you can adjust its shape
Regatta Tab:
✓ "Gun Button" allows to round seconds to nearest minute
Ex: 4:03 => 4:00 or 3:58 => 4:00
✓ Enter exact start time up to the second
✓ Displays of time to kill/save continuing the same way (speed and course)
✓ Displays of ideal speed to cross the line at 0:00 on the same course!!!
Settings Tab:
✓ Displays reverse color (white on black back)
✓ You can select Hybrid map
✓ Select on which duration is calculated the speed scale of your track: last 5min, 15 min or all the track
✓ Select your tack angle value. It will be displayed on MOB and WAYPOINT tabs
Exit:
✓ Ask to save the track before Exit
Note: SailFreeGPS uses a foreground service to get your location