Comparison

Garmin Messenger™ vs TDB+

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

Head to head
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.

About

TDB+

A physician-backed community offering evidence-based guidance and real-life support for parents from conception through the toddler years. Connect with others, access expert advice, and find resources to navigate the challenges of growing your family.

Highlights
  • Physician-backed guidance
  • Community support for parents
  • Stages: conception to toddler
  • Live sessions with doctors
  • Structured courses
  • Access to trusted information
Features
Read full description

Parenthood doesn’t come with a manual—and for many, it doesn’t come with a village either. TDB+ is a physician-backed and real-life tested community designed to support you through every stage of growing your family—from trying to conceive to pregnancy, newborn life, and the toddler years. Created by Dr. Sarah Bjorkman (OB/GYN) and Dr. Kurt Bjorkman (pediatrician), this is where evidence-based medical guidance meets real-life parenting support. Inside, you’ll find a space built for modern parents who want more than quick appointments and endless internet searches. Whether you're navigating IVF, preparing for birth, or adjusting to life with a newborn, you’ll have access to trusted information and a community that understands what you're going through. In TDB+, you can connect with other parents in the same stage of life, learn through structured courses, join live sessions and Q&As with doctors you trust, and access resources that simplify complex medical topics. This is more than content—it’s a place to belong. Many members join during one life transition, but stay as their family grows—because the challenges evolve, and so does the support you need. If you’ve ever felt like a 10-minute doctor’s visit wasn’t enough, this is where you’ll find answers, connection, and confidence in your parenting journey. *Dr. Kurt and Dr. Sarah are doctors, but not YOUR doctors. All content within TDB+—including posts, guides, videos, comments, and live sessions—is provided for educational and informational purposes only (and sometimes a little entertainment, too).

Screenshots

Garmin Messenger™4 screens
TDB+4 screens

Verdict

The call

The clearest difference is rating: TDB+ at 5.0 against Garmin Messenger™'s 4.6. TDB+ also leads on iOS requirement (16.4 vs 18.0). Garmin Messenger™'s advantage is ratings volume (14K vs 4) and chart position (#86 vs unranked). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

TDB+ holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Garmin Messenger™ has 14K ratings behind it against 4, so its average is the more settled of the two.

Scorecard4 real differences · 7 level
Garmin Messenger™ versus TDB+: the parameters behind the verdict, then further details
ParameterGarmin Messenger™TDB+
PriceFreeFree
Rating4.6 (14K ratings)5.0 (4 ratings) — better
Positive reviews19.5% of reviews—
Number of ratings14K — better4
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#86 — better—
DevicesiPhoneiPhone, iPad — better
Requires iOS18.016.4 — better
Further details — not scored
Size107 MB81 MB
Age rating12+17+
DeveloperGarmin InternationalTDB Productions LLC

Bugs and 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

TDB+

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Garmin Messenger™

No in-app purchases

None

TDB+

No in-app purchases

Questions

Is Garmin Messenger™ free?
Garmin Messenger™ is free to download, with no in-app purchases.
Is TDB+ free?
TDB+ is free to download, with no in-app purchases.
Which has better reviews, Garmin Messenger™ or TDB+?
TDB+ is rated higher. Garmin Messenger™ averages 4.6 out of 5 from 14K ratings, while TDB+ averages 5.0 from 4 ratings.
Do Garmin Messenger™ or TDB+ have ads?
Neither Garmin Messenger™ nor TDB+ shows ads.

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