Precision Trolling Data

Review by eFreeware

If you troll with diving lures and spend time working out how much line to let out, this app is built for that exact job. Precision Trolling Data takes the depth tables anglers have used for years in print and puts them on a phone, so the numbers are available while you are setting lines rather than back at the dock. It is a reference tool, not a fishing game or a logbook, and the people most likely to want it are the ones already running crankbaits and diving devices behind a boat.

The appeal is narrow but deep. Trolling is a method where the depth of the lure matters as much as the lure itself, and the app exists to make that depth predictable. The developer describes the underlying data as the same information that earned the print publication its nickname among anglers, and the app's job is to make those numbers usable in the moment. If you fish this way, the value is obvious; if you cast from shore, there is little here for you.

How the depth pickers work

The core of the app is the Data Wheel, an on-screen picker that replaces the printed dive curves. You set the depth you want the lure to run and the wheel tells you how far back it needs to be. That direction of lookup is the one most trollers need: you mark fish on sonar at a certain depth, then work out the lead length that puts your lure in front of them.

The same wheel runs in reverse. If you would rather start from a lead length you already have out, you can enter the distance and read off the depth the lure should be running at. That makes it a two-way conversion tool rather than a one-way chart, and it is the part that separates it from simply photographing a page of a book.

The developer's pitch is that this lets you aim a lure at a chosen depth instead of guessing, which in turn cuts down on snagged gear and time spent experimenting. The logic holds together: if you know how deep each lure runs at a given lead length, you can put several lines at the same productive depth without re-deriving the numbers for each rod.

Searching for lures that reach the same depth

Once a depth is producing fish, the app lets you look through its lure list for other models that reach the same depth. This is the feature that turns a lookup table into something closer to a strategy tool. You are not stuck repeating one lure; you can cycle through alternatives at the depth that is working and see which one the fish respond to.

That matters because lure choice and depth are separate variables. The app handles the depth side so you can spend your attention on color, action and speed. The developer frames this as a natural next step after a productive depth is found, and it is a sensible way to use the data.

The catalog is organized by lure categories, and the developer has added new ones over time. You can also build a favorites list containing only the lures you actually carry, which keeps the pickers from filling up with models you will never tie on.

Everyday features and recent updates

The trolling screen has a dark mode, which is a small thing until you are looking at a phone before sunrise or after dark. Menus can be collapsed so you can scroll to the lure you want without paging past sections you do not need. Together with the favorites list, these are the quality-of-life features that make the app quicker to use with cold hands on a moving boat.

The most recent update brings support for Android 35 and a move to a new server. That is maintenance rather than new fishing content, but it is the kind of update that keeps an older app working on current phones. The app dates back to 2014 and has been kept current since, which is worth something for a tool you may rely on for years.

There is also a Crappie subscription package. The developer notes that this package is not offered to Lifetime owners, on the grounds that they already have access to all the lure data. That is the clearest signal of how the app's purchases are structured: a base set of data plus an optional package aimed at a specific style of fishing.

What it asks of you

The app is free to download, carries no ads, and offers in-app purchases. The Crappie package is one of those purchases, sold as a subscription. Anyone weighing the cost should look at what they actually fish for before deciding, since the package targets a particular species rather than the general trolling catalog.

The bigger requirement is knowledge you bring with you. This is a data reference, so it assumes you understand lead length, diving devices and how your sonar readings translate into a target depth. Someone new to trolling will get numbers out of it but may not know what to do with them until they have learned the method.

The app is a screen you consult while rigging lines, so it works best where you can glance at it and put it down, not where you are holding it for long stretches.

Putting the wheels to work on the water

The most useful habit is to start from the fish rather than the lure. Mark a depth on sonar, open the wheel for the lure you have tied on, and read the lead length. Set that line, then use the same depth to set your other rods, varying lure model or color rather than depth.

When a depth starts producing, use the lure search to find other models that run at that same depth. That gives you a controlled experiment: same depth, different lure, and you learn something either way. The favorites list makes this faster, because the lures you own are the only ones in front of you.

It also pays to record what worked. The app gives you the numbers, but the pattern of which lure at which depth caught fish is yours to keep. A few notes on your phone or a paper log will make the next trip shorter, since you can start from a known lead length instead of working up to it again.

The case for keeping it on your phone

Precision Trolling Data does one job and does it without much decoration. It converts between lead length and running depth for a catalog of lures and diving devices, lets you find alternatives that hit the same depth, and stays out of the way otherwise. For a troller, that is a tool worth having on board, and the free download makes it easy to see whether the data covers the lures you own.

The rating sits at 3.6 from 476 ratings, which is a middling score for an app that has been around since 2014 and has passed 100,000 installs. That tells me the app is widely used but not universally loved, and the most likely reason is that its value depends entirely on whether you fish this way. Anglers who do will find the wheels quick and the depth matching genuinely useful; anglers who do not will find a screen full of numbers.

My recommendation is aimed at trollers who already run diving lures and want the dive-curve data in a form they can adjust on the water. If that describes your fishing, the app is a reasonable addition to your phone, with the Crappie subscription as an optional extra for that species. If you are still learning the method, the app is for you in one sense: it supplies accurate numbers, and it concentrates on giving you those numbers rather than on teaching the technique behind them.

What's new in version 7.1

support for android 35. Migrate to a new server