Comparison

Signal Flags Communicator vs Garmin Messenger™

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

Head to head
About

Signal Flags Communicator

Features
Read full description

Signal Flags Communicator enables a unique form of communication using flag images. It is both a training aid to those wanting to learn to recognize the flags of the International Code of Signals, and an app to support and ensure privacy of communications, immediately, for anyone, with or without knowledge of the flags. In operation, Signal Flags Communicator instantly translates written or spoken (via Siri) text into corresponding flag images, constructs a graphic representation of the text, and a proprietary FlagMessage file. Once the composition is complete, the graphic (PDF) image can be sent via email or text, and is printable on any AirPrint capable printer. The FlagMessage file, which is simultaneously created, is intended for peer-to-peer communications via AirDrop or email attachment. Recipients of the FlagMessage file, as peers, can use their own Signal Flags Communicator app to translate and interpret the message when received, and save it locally on their device. Since neither the PDF nor the FlagMessage file contain any scannable text, the communication is resistant to any text scanning by 3rd parties. When transmitted via AirDrop, communications are secure and directly from one device to another, with no 3rd party involvement. Features include: • composing, printing, and sending of flag images and message content via email, text and AirDrop • A “native” app; all data is self contained in a protected form on the device • can communicate securely peer-to-peer via AirDrop • email capability uses a text-free proprietary format that cannot be scanned for text by 3rd parties • text messaging support for transmission of flag image content via a text-free PDF file • AirPrint support for printing flag images on all capable printers, including roll printers • recipients without knowledge or access to the flags can read the messages via use of the app on their own device • includes all International Code, and USN/NATO flags and pennants • capability to setup a message book, searchable for message text or meaning

About

Garmin Messenger™

Communicate globally with friends and family, even without cell service. Pair with a compatible satellite communicator for secure messaging and SOS capabilities. Enjoy automatic network switching for reliable connectivity and real-time location sharing.

Highlights
  • Global messaging
  • Interactive SOS
  • Group messaging
  • Photo and voice messaging
  • Automatic network switching
  • Real-time location sharing (LiveTrack)
Features
Read full description

Stay in touch with friends and family. Enjoy the security and connectivity of global messaging with the Garmin Messenger™ app. Pair with your compatible inReach® satellite communicator for fast, easy direct messaging and interactive SOS that’s not limited to cellphone coverage areas (active satellite subscription required). The app supports group messaging as well as photo and voice messaging when paired with a compatible Garmin device (1). Automatic switching between internet, cellular, and satellite networks gives you the best connectivity and efficiency for all your messaging. When you have connectivity, the app will work seamlessly even if your inReach device is turned off. Invite your friends and family to download the app to stay connected and keep the conversation going on and off the trail. With the use of the LiveTrack™ feature, loved ones can follow your location in real time (2) and see data such as distance, time and elevation. (1) See compatible devices at garmin.com/p/893837#devices (2) When used with your compatible smartphone and the Garmin Earthmate® app or when used with your compatible inReach® technology-enabled Garmin device. Note: Some jurisdictions regulate or prohibit the use of satellite communication devices. It is the responsibility of the user to know and follow all applicable laws in the jurisdictions where the device is intended to be used.

Screenshots

Signal Flags Communicator4 screens
Garmin Messenger™4 screens

Verdict

The call

The clearest difference is price: Garmin Messenger™ at Free against Signal Flags Communicator's $4.99. Garmin Messenger™ also leads on update cadence (every 3 weeks vs every 17 months). Signal Flags Communicator's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 18.0). On ads, in-app purchases and chart position 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

Garmin Messenger™ is free to download; Signal Flags Communicator costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Signal Flags Communicator ships an update every 17 months, Garmin Messenger™ every 3 weeks. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 7 level
Signal Flags Communicator versus Garmin Messenger™: the parameters behind the verdict, then further details
ParameterSignal Flags CommunicatorGarmin Messenger™
Price$4.99Free — better
Rating—4.6 (14K ratings) — better
Positive reviews—19.5% of reviews
Number of ratings—14K — better
Update frequencyEvery 17 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
Best chart rank#145#87 — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better18.0
Further details — not scored
Size6 MB107 MB
Age rating4+12+
DeveloperGigs, Inc.Garmin

Bugs and requests

Signal Flags Communicator

Not enough reviews yet to summarise bugs or requests.

Garmin Messenger™

Reported bugs

4 issues
  • No verification code received
  • App freezes during activation
  • Inconsistent behavior between app and device
  • Messaging not working in areas with no cell coverage

Requested features

5 requests
  • Ability to message non-Messenger contacts
  • Improved contact management and syncing
  • Apple Watch compatibility
  • Ability to delete messages on paired devices
  • Better integration with Garmin Explore app

In-app purchases

None

Signal Flags Communicator

No in-app purchases

None

Garmin Messenger™

No in-app purchases

Questions

Is Signal Flags Communicator free?
Signal Flags Communicator costs $4.99, with no in-app purchases.
Is Garmin Messenger™ free?
Garmin Messenger™ is free to download, with no in-app purchases.
Do Signal Flags Communicator or Garmin Messenger™ have ads?
Neither Signal Flags Communicator nor Garmin Messenger™ shows ads.
Which is updated more often, Signal Flags Communicator or Garmin Messenger™?
Signal Flags Communicator ships an update every 17 months, and Garmin Messenger™ every 3 weeks. Most recently, Signal Flags Communicator was updated on October 29, 2026 and Garmin Messenger™ on October 31, 2026.
Which is more popular, Signal Flags Communicator or Garmin Messenger™?
Signal Flags Communicator currently peaks at #145 in the App Store charts, and Garmin Messenger™ at #87. Chart position reflects recent download velocity rather than total install base.

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