Simrad PRO System Builder vs TMG BT
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Simrad PRO System Builder
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A business tool for marine electronics companies engaged in the sale of Simrad PRO equipment. System Builder is only available to users that are registered with Navico. An unlock key is required to use Simrad System Builder. Please contact your Navico sales representative and apply to use this great tool. A software tool to assist the sale of Simrad PRO products as a complete working system. β’ Provides a sales quote, including system diagrams, to the dealer and/or the customer, quickly and easily, saving a sales person hours, if not days. β’ Assists marine electronics sales staff, who do not always have intimate knowledge of Navico PRO products, to make sure quotes have the correct parts to make a working system. β’ Basic product knowledge is required. β’ Provides both an ethernet diagram and a NMEA 2000 connection drawing with load calculations. β’ Diagrams show alerts if critical parts are missing and warnings to offer extra functionality. β’ Serves as a great resource of product information. β’ Provides key features, specifications, pricing, whatβs in the box, images, and dimensioned drawings.
TMG BT
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TMG BT application communicate over BLE with The Marine Guardian (TMG) boat tracking and monitoring device. User can control the output sensors with the help of TMG BT application, this application will work with only TMG devices. How to Use : - First Open the application and register user - Add Device IMEI visible on the TMG Device and enter name of device to access the device over BLE. - Once the Device is visible in list if device is available then we will be able to connect to devices and use below listed features. Features: - Current status of output and Input sensors - Controlling(Turn On/Off) the output on device - Communicating with TMG device
Screenshots
Verdict
The clearest difference is update cadence: TMG BT at monthly against Simrad PRO System Builder's every 3 months. TMG BT also leads on device support (3 vs 1). Simrad PRO System Builder's advantage is iOS requirement (9.0 vs 14.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Simrad PRO System Builder ships an update every 3 months, TMG BT monthly. The most recent releases landed on March 11, 2026 and September 18, 2026 respectively.
| Parameter | Simrad PRO System Builder | TMG BT |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Monthly β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPad | iPhone, iPad, iPod β better |
| Requires iOS | 9.0 β better | 14.0 |
| Further details β not scored | ||
| Size | 130 MB | 33 MB |
| Age rating | 4+ | 17+ |
| Developer | Navico Norway AS | The Marine Guadian LLC |
In-app purchases
Simrad PRO System Builder
No in-app purchases
TMG BT
No in-app purchases
Questions
Is Simrad PRO System Builder free?
Is TMG BT free?
Do Simrad PRO System Builder or TMG BT have ads?
Which is updated more often, Simrad PRO System Builder or TMG BT?
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