Troll Master Depth Calculator

4.2
116 reviews
1K+
Downloads
Content rating
Everyone
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About this app

The most comprehensive trolling app on the market! Use it on the water to calculate your depth or use it at home to construct your own dive charts. This app lets you select your line, your lure, a diver or trolling weights, and then combine them however you want. Quickly and easily see the effect of changing line length, speed, weight, leader length, rod height, lures and many other factors.

This is a great app for anyone who fishes in saltwater, freshwater, or anywhere in between. The app has many features for walleye, trout, salmon, striped bass, red drum, tuna, wahoo, and pretty much any other species you might troll for.

This app uses physics based calculations to determine the trolling depth of your lure with precision based on your inputs. The calculations have been verified via on the water testing.

Current Lures:

Bagley Rumble B 11
Bagley Rumble B 13
Bagley Rumble B 9
Bandit B Shad
Bandit Bandit 100
Bandit Bandit 200
Bandit Bandit 300
Bandit Walleye Deep
Bandit Walleye Shallow
Bay Rat Bay Rat
Bay Rat Bay Rat LD
Bay Rat Long Extra Deep
Berkley Flicker Minnow 11
Berkley Flicker Minnow 5
Berkley Flicker Minnow 7
Berkley Flicker Minnow 9
Berkley Flicker Shad 5
Berkley Flicker Shad 7
Berkley Flicker Shad 9
Berkley Flicker Shad Shallow 5
Berkley Flicker Shad Shallow 7
Berkley Jointed Flicker Shad 5
Berkley Jointed Flicker Shad 7
Bill Lewis Rattle Trap
Bomber Bomber CD20
Bomber Bomber CD25
Bomber Bomber CD30
Bomber Long A 14A 3 1/2
Bomber Long A 15A 4 1/2
Bomber Model A Crankbait B02, 2A
Bomber Model A Crankbait B04, 4A
Bomber Model A Crankbait B05, 5A
Bomber Model A Crankbait B06, 6A
Bomber Model A Crankbait B07, 7A
Cotton Cordell Wally Diver
#3 Crawler Harness
#4 Crawler Harness
11 inch Flasher/Fly
4 inch Dodger/Fly
4 inch Flasher/Fly
4.5 inch Dodger/Fly
6 inch Dodger/Fly
8 inch Flasher/Fly
Lead Jig with Trailer
Spoon
Kilam Custom Baits Supa6
Norman DD22
Norman Deep Baby N
Norman Deep Little N
Norman Deep Tiny N
Norman Middle N
Rapala Deep Husky Jerk 12
Rapala Deep Jointed Husky Jerk 12
Rapala Deep Jointed Husky Jerk 8
Rapala Husky Jerk 10
Rapala Jointed Deep Husky Jerk 08
Rapala Jointed Shad Rap 4
Rapala Jointed Shad Rap 5
Rapala Jointed Shad Rap 7
Rapala Minnow Rap 9
Rapala Original Floater F9
Rapala Original Floater F11
Rapala Original Floater F13
Rapala Scatter Rap Deep Husky Jerk 10
Rapala Scatter Rap Tail Dancer 9
Rapala Shad Dancer 5
Rapala Shad Rap 5
Rapala Shad Rap 7
Rapala Shad Rap 9
Rapala Shad Rap Deep 9
Rapala Shallow Shad Rap 5
Rapala Shallow Shad Rap 7
Rapala Tail Dancer 5
Rapala Tail Dancer 7
Rapala Tail Dancer 9
Rapala Tail Dancer Deep 11
Rapala Tail Dancer Deep 7
Rapala Tail Dancer Deep 9
Reef Runner Deep Little Ripper
Reef Runner Reef Runner Deep
Salmo Bullhead 4
Salmo Bullhead 6
Salmo Frisky 5
Salmo Frisky 7
Salmo Hornet 3
Salmo Hornet 4
Salmo Hornet 5
Salmo Hornet 6
Bucktail
Bucktail with Trailer
Bullet
Parachute
Parachute with Trailer
Soft Plastic Swimbait
Tube
Umbrella Rig
Smithwick Elite 8 Rogue
Smithwick Smithwick Perfect 10
Smithwick Suspending Rattling Rogue
Smithwick Top 20
Storm Deep Thunderstick
Storm Deep Thunderstick Jr
Storm Hot N Tot 3/16 oz/5cm
Storm Hot N Tot 3/8 oz/6cm
Storm Thin Fin 6
Storm Thin Fin 8
Storm Wiggle Wart
Striper Sniper Striper Sniper 1 oz Kodiak Jig
Striper Sniper Striper Sniper Ultralight Rig/10in Worms
Striper Sniper Striper Sniper Ultralight Rig/4in Shad
Striper Sniper Striper Sniper Ultralight Rig/7in Worms
Walleye Nations Creations Reaper
Walleye Nations Creations Shaky Shad 5
Walleye Nations Creations Shaky Shad 7
XTackle XTDR4
XTackle XTDR6
Yo-Zuri Deep Diver Crystal Minnow
Yo-Zuri Floating Crystal 3D Minnow 4 3/8
Yo-Zuri Floating Crystal 3D Minnow 5 1/4
Updated on
Jul 9, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.2
113 reviews
Larry Sickerson
April 26, 2025
I've been a loyalist since 2020. I would recommend this app for fishermen who are serious trollers. Pay attention to the list of lures in the app before you purchase so that you are not caught off guard. I gave it four stars because I recommend that the owner improve his glossary of terms and directions so future users learn how to interpret the results correctly. IMHO, better than Precision Trolling. PT shows much more line out for the same lure and line weight. Don't know why that is.
4 people found this review helpful
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Larry Buster
August 23, 2020
Great trolling tool. Much, much better than Precision Trolling and way less expensive. Trevor is super quick to answer questions or lend help when asked. This app will calculate line length for long line, lead core, as well as snap weights. You just enter the data and press calculate. I used the Precision Trolling app but was much more comfortable with Troll Master. It now has over or close too 100 different lure types and Trevor is adding more as they are tested. Buy it!!!!!!!!!!!
10 people found this review helpful
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Corey Schaff
August 4, 2020
Works well, would like to be able to set line type, leader length, etc and have it be saved every time you open the app. Would save time while on the water and make the app now user friendly. Most of us are using the same basic setup for a whole season or whole trip.
10 people found this review helpful
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