Comparison

GMI Connect vs Bell TechPubs

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

Head to head
About

GMI Connect

Features
Read full description

Guardian Mobility's GMI Connect APP enables communication with the Guardian Mobility G4MX/G4 device via Bluetooth to support aircraft tracking, events and Alert reporting, to interchange device information, GPS and iridium connection status, send Mark position and Alert reporting messages, send and receive two-way free-form and pilot editable pre-formed text messages over the Iridium Satellite network. The APP also provides enhanced support for Automated Telemetry Unit (ATU) operations, aircraft triggered mapping events, Flight Data Monitoring System(FDMS) support and general device Alert and Event reporting configuration. The APP supports the User editing the pre-formed message list for personnel and operational reasons. The APP can be installed and operated in one of two modes: • Aircrew mode – This mode provides GPS/iridium/Bluetooth and G4MX Status, Text Messaging, Automatic Flight Following (AFF) tracking with configurable update rates, Mark Current Position and Alert report generation functionality and some basic configuration options. • Admin/Maint mode – This password protected mode provides the Aircrew functionality plus support for ATU operations configuration, ATU load cell calibration, External aircraft Discrete I/O configuration and trigger mapping event configuration.

About

Bell TechPubs

Access technical manuals and interactive documents for mission-critical operations. Supports online and offline viewing, with features like hyper-linking and interactive figures for easy navigation and troubleshooting.

Highlights
  • Online and offline manual access
  • Interactive PDF and S1000D IETM formats
  • Integrated hyper-linking between documents
  • Update notifications for new revisions
  • Zoomable interactive figures
  • Fault isolation and wiring diagrams
Features
Read full description

Access your Bell Technical Publications libraries anytime, anywhere with the Bell Technical Publications iOS app, designed exclusively for iPadOS. Whether you’re on the flightline, in the field, or mid-flight, this app is built to support your mission-critical operations. Key Features: • Online and Offline Access: View technical manuals while online or download individual manuals or entire libraries for offline use. • Interactive Manuals: Access fully interactive manuals in PDF and S1000D Interactive Electronic Technical Manual (IETM) formats. • Integrated Hyper-Linking: Seamlessly navigate between manuals, chapters, and data modules, including maintenance and flight manuals, Illustrated Parts Catalogs, Alert Service Bulletins, Technical Bulletins, and more. • Update Notifications: Stay informed with email and in-app notifications when new manuals are added or revisions are released. • Interactive Figures: Zoom and pan features for figures in Maintenance Manuals and Illustrated Parts Catalogs. • Fault Isolation and Wiring Diagrams: Access interactive Fault Isolation Manuals and Wiring Diagram manuals for enhanced troubleshooting. Designed for aerial firefighters, air ambulance operators, law enforcement, military personnel, and more, this app ensures you have the information you need, even in the most remote locations. Download the Bell Technical Publications app today and take your technical libraries with you wherever your mission takes you.

Screenshots

GMI Connect4 screens
Bell TechPubs3 screens

Verdict

The call

The clearest difference is iOS requirement: GMI Connect at 15.6 against Bell TechPubs's 17.0. On price, update cadence, ads and in-app purchases 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.

UpkeepUpdate frequency

GMI Connect ships an update every 4 months, Bell TechPubs every 3 months. The most recent releases landed on September 9, 2026 and June 1, 2026 respectively.

Scorecard1 real difference · 9 level
GMI Connect versus Bell TechPubs: the parameters behind the verdict, then further details
ParameterGMI ConnectBell TechPubs
PriceFreeFree
Rating4.0 (3 ratings) — better
Positive reviews100.0% of reviews
Number of ratings3 — better
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size7 MB116 MB
Age rating4+4+
DeveloperGuardian Mobility, IncBell Helicopter Textron Inc.

In-app purchases

None

GMI Connect

No in-app purchases

None

Bell TechPubs

No in-app purchases

Questions

Is GMI Connect free?
GMI Connect is free to download, with no in-app purchases.
Is Bell TechPubs free?
Bell TechPubs is free to download, with no in-app purchases.
Do GMI Connect or Bell TechPubs have ads?
Neither GMI Connect nor Bell TechPubs shows ads.
Which is updated more often, GMI Connect or Bell TechPubs?
GMI Connect ships an update every 4 months, and Bell TechPubs every 3 months. Most recently, GMI Connect was updated on September 9, 2026 and Bell TechPubs on June 1, 2026.

Other comparisons