Best Z alternatives: apps like Z-SOS

8+ similar apps compared and reviewed

3.5 avg rating
8 free apps
Updated October 2026

Looking for something like Z? We've analyzed 8+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to Z

SailFreeGPS#1

SailFreeGPS by Frederic BRO

Sailing navigation intruments
Editor's Choice
🗺️ Navigation
4.2(11 ratings)
FreeAdsIn-App Purchases
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This app provides sailing navigation tools, displaying real-time location, speed, course, and historical data. It assists with MOB situations, regattas, and waypoint management, offering advanced features in its premium version.

Wärtsilä iSailor#2

Wärtsilä iSailor by Wartsila Voyage Sweden AB

World's leading sailing app
Strong Contender
🗺️ Navigation
3.3😐(12 ratings)
FreeIn-App Purchases
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This marine navigation app offers clear presentation of navigational information and electronic charts for amateur seafarers. It supports accurate TX-97 vector charts and provides various optional services like weather and AIS data.

What We Love

  • ✨ Excellent app for navigation
  • 🗺️ Accurate and detailed charts
  • 💰 Good value for money
  • 🛳️ Reliable for offshore sailing
  • 🔍 Helpful features like anchor alarm

Room to Improve

  • 🐛 Crashes and bugs after updates
  • 🔄 Issues with restoring purchased charts
  • 💰 Expensive subscription model for chart updates
  • 🗺️ Missing or incomplete chart data in some regions
  • 🔧 Poor customer support and lack of communication
3.8😞(17 ratings)
FreeIn-App Purchases
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Access worldwide tidal information for over 8,000 locations without an internet connection. Features include tidal graphs, weekly tables, sunrise/sunset times, and moon phases. Advanced tools help calculate optimal time windows for various water activities.

What We Love

  • 🚀 Accurate tide data
  • 💡 Detailed tidal information
  • 👍 Useful for sailing/fishing
  • 🚢 Great for commercial/recreational boating

Room to Improve

  • 🐛 Frequent crashes and bugs
  • 🚫 Unreliable map/location features
  • 💸 Expensive annual subscription
  • 👎 Confusing and unintuitive interface
  • 🕰️ Unable to view future tide data without paid upgrade

More apps like Z

4
Imray Navigator
Imray Navigator
Imray Navigator
by FB Imray Laurie Norie & Wilson GmbH
Free

This marine chart plotter provides nautical charts for various sea activities. Plan passages, create routes, and share tracks. Offers GPS, tides, and AIS integration for comprehensive navigation.

Nautical charts from Imray and other publishersPassage planning and route creationShare tracks and waypoints
🗺️ Navigation
(7)
subscription
5
Share Location: Mobile Tracker
Share Location: Mobile Tracker
Share Location: Mobile Tracker
Find My Friends & Lost Phone
Free

Stay connected with loved ones by sharing real-time locations on an interactive map. Set up safety zones for instant notifications and access location history for peace of mind. Includes an emergency SOS button for immediate alerts.

24/7 real-time location sharingPrivate group creationCustomizable safety zones with notifications
🗺️ Navigation
(15)
free with in-app purchases
6
AIS Maps: Marine & Lake charts
AIS Maps: Marine & Lake charts
AIS Maps: Marine & Lake charts
Detailed nautical & topo maps
Free

Explore detailed nautical, lake, and park maps with live vessel tracking. Offers offline map access, route planning, and weather forecasts for safe and informed navigation on water and trails.

Live AIS vessel trackingDetailed nautical chartsOffline map downloads
🗺️ Navigation
(32)
free with in-app purchases
7
GPS Elevation
GPS Elevation
GPS Elevation
Altimeter & Barometer
Free

This navigation app provides hikers and explorers with precise altitude, GPS coordinates, and barometric pressure data. It also calculates water boiling points based on elevation, enhancing outdoor safety and preparedness.

Precise altitude dataGPS coordinatesBarometric pressure readings
🗺️ Navigation
(4)
freemium
8
Distance Measurement
Distance Measurement
Distance Measurement
Measure distance by tracing
Free

Measure distances on a map by simply tracing with your finger. Supports both kilometers and miles, with search and current location features. This straightforward app is designed for ease of use.

Measure distance by tracing on mapSupports km and milesSearch functionality
🗺️ Navigation
(7)
ad-supported