Comparison

VesselAware vs CH16

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

VesselAware

Features
Read full description

VesselAware™ transforms marine VHF voice communications into real-time, geospatial intelligence. VesselAware™ delivers transcribed and translated radio traffic, detected locations, vessel information, and categorized maritime events alongside existing AIS and operational data. VesselAware™ identifies distress calls, hazards, hails, security events, and other activity as it happens, turning previously isolated voice communications into structured, location-aware data. The result is a richer Common Operating Picture that gives watchstanders and decision-makers a more complete understanding of maritime activity across their area of responsibility. VesselAware™ makes boating safer and less stressful by transforming VHF radio communications into easy-to-understand alerts and information. Get notified about urgent calls, nearby hazards, and hails to your boat while seeing relevant vessel activity on a clear map.

About

CH16

This maritime safety app provides instant access to global rescue coordination centers and features tools for generating distress messages and planning voyages. It offers real-time location tracking for man overboard situations and works offline, ensuring safety at sea.

Highlights
  • Global maritime rescue center directory
  • Interactive SRR zone map
  • GMDSS-compliant distress message generator
  • Man Overboard (MOB) mode with GPS tracking
  • Passage Plan for voyage declaration
  • Offline functionality
  • Multilingual support
Features
Read full description

CH16 by Global SAR Hub is the essential maritime safety app for every seafarer. Instantly access contact details for over 350 maritime rescue coordination centers (MRCC, MRSC, JRCC, JRSC) worldwide. View Search and Rescue Regions (SRR) on an interactive map and identify the center responsible for your current position in real time. Generate IMO/GMDSS-compliant MAYDAY and PAN PAN distress messages with audio playback. Activate Man Overboard (MOB) mode to record a GPS position and guide you back to the drop point. NEW - Passage Plan: declare your route and automatically notify all rescue centers along your way, in their own language. An essential step for your safety at sea. Get notifications when you cross into a new SRR zone. Save your vessel and captain information to automatically include them in your messages and passage plans. Available in 6 languages. Works offline. Key features: • Global directory of 350+ maritime rescue centers • Interactive SRR zone map with automatic detection • GMDSS-compliant MAYDAY / PAN PAN message generator • Audio playback of distress messages • Man Overboard mode with GPS tracking and DMD format • Real-time MOB map view • Passage Plan: multilingual voyage declaration to RCCs • Persistent vessel and captain profiles • Voice recording of vessel name • SRR zone change notifications • Multilingual country search • 6 languages: EN, FR, ES, PT, IT, DE • Full offline mode Terms of Use (EULA): https://www.globalsarhub.com/terms-of-use.html Privacy Policy: https://www.globalsarhub.com/privacy-policy.html

Screenshots

VesselAware1 screens
CH163 screens

Verdict

The call

The clearest difference is in-app purchases: VesselAware at none against CH16's 2. VesselAware also leads on ads (none vs shown) and update cadence (daily vs every 2 months). CH16's advantage is iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CH16 sells 2 in-app purchases, starting at $0.99 per month. VesselAware asks for nothing beyond the download.

UpkeepUpdate frequency

VesselAware ships an update daily, CH16 every 2 months. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.

Scorecard4 real differences · 4 level
VesselAware versus CH16: the parameters behind the verdict, then further details
ParameterVesselAwareCH16
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyDaily — betterEvery 2 months
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size43 MB80 MB
Age rating12+4+
DeveloperAltamar Technologies IncGlobal SAR Hub

In-app purchases

None

VesselAware

No in-app purchases

2 purchases

CH16

Subscriptions1
  • CH16 Pro7 Days trial$0.991 Month
One-time1
  • CH16 Pro Lifetime$4.99

Questions

Is VesselAware free?
VesselAware is free to download, with no in-app purchases.
Is CH16 free?
CH16 is free to download, with in-app purchases available.
Do VesselAware or CH16 have ads?
CH16 shows ads; VesselAware does not.
Which is updated more often, VesselAware or CH16?
VesselAware ships an update daily, and CH16 every 2 months. Most recently, VesselAware was updated on September 29, 2026 and CH16 on October 2, 2026.

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