Comparison

Troll Master Depth Calculator vs Vulture Systems

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

Head to head
About

Troll Master Depth Calculator

This app calculates the precise trolling depth of your fishing lure based on various factors like line, lure type, and speed. It also allows for the creation of custom dive charts for at-home planning. Ideal for anglers targeting a wide range of freshwater and saltwater species.

Highlights
  • Calculate trolling depth
  • Create custom dive charts
  • Select line, lure, and weights
  • Adjust factors like speed and length
  • Physics-based calculations
  • On-water testing verified
Features
Read full description

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. Lure types: Bagley Rumble B 9 Bagley Rumble B 11 Bagley Rumble B 13 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 5 Berkley Flicker Minnow 7 Berkley Flicker Minnow 9 Berkley Flicker Minnow 11 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 3 inch Bomber CD20 Bomber CD25 Bomber CD30 Bomber Long A 14A 3 1/2 Bomber Model A B02, 2A Bomber Model A B04, 4A Bomber Model A B05, 5A Bomber Model A B06, 6A Bomber Model A B07, 7A Cotton Cordell Wally Diver CD5 #3 Crawler Harness #4 Crawler Harness 4 inch Dodger/Fly 4.5 inch Dodger/Fly 6 inch Dodger/Fly 4 inch Flasher/Fly 8 inch Flasher/Fly 11 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 Husky Jerk 10 Rapala Jointed Deep Husky Jerk 8 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 7 Rapala Tail Dancer Deep 9 Rapala Tail Dancer Deep 11 Reef Runner Deep Little Ripper Reef Runner Reef Runner Deep Salmo Bullhead 4 Salmo Bullhead 6 Salmo Frisky Deep 5 Salmo Frisky Shallow 7 Salmo Hornet 3F Salmo Hornet 4F Salmo Hornet 5F Salmo Hornet 6F Bucktail Bucktail with Trailer Bullet Parachute Parachute with Trailer Soft Plastic Swimbait Tube Umbrella Rig Smithwick Elite 8 Rogue Smithwick Perfect 10 Smithwick Suspending Rattling Rogue Smithwick Top 20 Storm Deep Thunderstick Storm Deep Thunderstick Jr Storm Hot N Tot 3/16oz 5cm Storm Hot N Tot 3/8oz 6cm Storm Thin Fin 6 Storm Thin Fin 8 Storm Wiggle Wart Striper Sniper Kodiak Jig, 1 oz Striper Sniper Ultralight Rig, 10 in Worms Striper Sniper Ultralight Rig, 4in Shad 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 Terms of Use: http://rmlew.atwebpages.com/trollmaster/termsofuse.html

About

Vulture Systems

Monitor fishing gear remotely with long-range sensors and a smartphone app. Receive instant alarms, customize sounds, and log catches with detailed information and photos. Share your successes with friends.

Highlights
  • Long-range sensor monitoring
  • Real-time smartphone alarms
  • Customizable alarm sounds
  • Detailed catch logging
  • Catch sharing capabilities
  • Remote sensor control
  • Firmware updates via app
Features
Read full description

Vulture System's has now combined its same long range, two way communication system with the ability to interface the new Vulture Connected Handheld directly to your smartphone (iPhones, iPads, and Apple Watch). This allows the ability to still monitor your ice fishing tip ups, tip downs, rattle reels, bank fishing poles, traps, etc. still at the same long distance as before (up to one mile). When your sensor goes into alarm, it will immediately transmit the alarm directly to the handheld which will then push the alarm immediately to the Vulture Connect App. This allows for the ability to have louder alarms from your smartphone while still allowing for the ability to control your sensors from the waterproof Vulture Connected Handheld. Each sensor can be assigned a unique name to indicate the location or even add details of what bait was used. The sensor alarms can be customized to play a voice message or custom sound file upon going into alarm. Upon making a catch the user has the option to record the catch and indicate the type of fish caught, weight, length, GPS location, notes, photograph, and weather reports. Upon completion of a fish log the user has the ability to easily share the catch with friends via a number of different methods such as SMS, email, and Facebook! The user has the ability to check sensors, turn on the sensor white lights, and monitor sensors directly from the Vulture Connected Handheld or the Vulture Connect App. When new features are added to the Vulture Connected Handheld the user can easily update the handheld firmware with the push of a button directly from the Vulture Connected App! See www.vulturesystems.com for your details! We can't wait to see your #vulturecatch in the near future.

Screenshots

Troll Master Depth Calculator4 screens
Vulture Systems3 screens

Verdict

The call

The clearest difference is review sentiment: Troll Master Depth Calculator at 66% against Vulture Systems's 0%. Troll Master Depth Calculator also leads on rating (3.8 vs 3.0) and update cadence (monthly vs every 6 months). Vulture Systems's advantage is in-app purchases (none vs 3). On price, ads and device support 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. Troll Master Depth Calculator sells 3 in-app purchases, starting at $4.99 per month. Vulture Systems asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Troll Master Depth Calculator holds the better App Store score, 3.8 against 3.0. That said, the two scores are not equally well evidenced: Troll Master Depth Calculator has 73 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 66% of Troll Master Depth Calculator's written reviews are positive against 0% of Vulture Systems's.

UpkeepUpdate frequency

Troll Master Depth Calculator ships an update monthly, Vulture Systems every 6 months. Both last shipped on October 22, 2026.

Scorecard7 real differences · 3 level
Troll Master Depth Calculator versus Vulture Systems: the parameters behind the verdict, then further details
ParameterTroll Master Depth CalculatorVulture Systems
PriceFreeFree
Rating3.8 (73 ratings) — better3.0 (1 ratings)
Positive reviews65.9% of reviews — better0.0% of reviews
Number of ratings73 — better1
Update frequencyMonthly — betterEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size51 MB61 MB
Age rating4+4+
DeveloperTrevor LewisVulture Systems, LLC

Customer experience

Troll Master Depth Calculator

All ratings73 ratings
Positive68.5%
Neutral9.6%
Negative21.9%
Written reviews44 reviews
Positive65.9%
Neutral11.4%
Negative22.7%

Vulture Systems

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Bugs and requests

Troll Master Depth Calculator

Reported bugs

7 issues
  • App does not work
  • No results found even with inputs
  • Upgrade not working
  • Dive curves are not accurate
  • App throws errors
Show 2 more
  • Doesn't calculate, gives error codes
  • Lures superimposed on other lure types (fixed by text size)

Requested features

6 requests
  • Add saltwater trolling lures
  • Include Yo-Zuri, MagBay, Ilander lures
  • Update and add new baits
  • Add leadcore trolling option
  • More lure selection from major manufacturers
Show 1 more
  • Add Salmo Freedivers and Salmo 5.5's

Vulture Systems

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Troll Master Depth Calculator

Subscriptions2
  • Monthly Subscription$4.991 Month
  • Annual Subscription$19.991 Year
One-time1
  • Lifetime Purchase$49.99
None

Vulture Systems

No in-app purchases

Questions

Is Troll Master Depth Calculator free?
Troll Master Depth Calculator is free to download, with in-app purchases available.
Is Vulture Systems free?
Vulture Systems is free to download, with no in-app purchases.
Which has better reviews, Troll Master Depth Calculator or Vulture Systems?
Troll Master Depth Calculator is rated higher. Troll Master Depth Calculator averages 3.8 out of 5 from 73 ratings, while Vulture Systems averages 3.0 from 1 ratings.
Do Troll Master Depth Calculator or Vulture Systems have ads?
Neither Troll Master Depth Calculator nor Vulture Systems shows ads.
Which is updated more often, Troll Master Depth Calculator or Vulture Systems?
Troll Master Depth Calculator ships an update monthly, and Vulture Systems every 6 months. Most recently, Troll Master Depth Calculator was updated on October 22, 2026 and Vulture Systems on October 22, 2026.

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