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Troll Master Depth Calculator for iOS

By Trevor Lewis $7.99

Developer's Description

Why guess how deep your lures are running? You've made the investment in time and gear to get you on the water. Let the Troll Master Depth Calculator help you maximize your investment!

This app uses physics based calculations to determine the running depth of your lure based on the lure type, lure size, line weight, speed, leader length, rod height and trolling weight size. The calculations have been verified via on the water testing.

Lure types:


Bucktail with Trailer


Lead Jig with Trailer


Parachute with Trailer

Soft Plastic Swimbait



Umbrella Rig

Crankbait (1.5 in, 7 ft)

Crankbait (2 in, 3 ft)

Crankbait (2 in, 5 ft)

Crankbait (2 in, 8 ft)

Crankbait (2 in, 12 ft)

Crankbait (3 in, 1.5 ft)

Crankbait (3.5 in, 2 ft)

Crankbait (4 in, 2 ft)

Crankbait (6 in, 25 ft)

Crankbait (8 in, 30 ft)

Now with Dipsy Diver sizes #0, #1, and #3!

User inputs:

1) Type of fishing line (Monofilament or Braid)

2) Line strength (8 - 250 lb test)

3) Line Length

4) Leader Length

5) Speed

6) Trolling Weight

7) Lure Weight

8) Lure Type

9) Rod Tip Height

Full Specifications

What's new in version 6.0


Release July 10, 2019
Date Added July 10, 2019
Version 6.0

Operating Systems

Operating Systems iOS
Additional Requirements Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


Total Downloads 2
Downloads Last Week 0
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