Comparison

Cannon Downriggers vs Trolling Angles

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

Head to head
About

Cannon Downriggers

Control your fishing downriggers remotely from your mobile device. Monitor trolling data, manage multiple units, and update your downrigger software with ease. Enjoy full command of your fishing gear from anywhere on your boat.

Highlights
  • Remote downrigger control
  • Trolling data monitoring
  • Software updates
  • Network view of multiple units
  • Control of speed and line settings
Features
Read full description

With the Cannon App on your mobile device, you’ll have trolling data at your fingertips and total control of your Optimum downriggers from anywhere on your boat. It even keeps your Optimum software up to date. - Access to all your critical trolling data from up to four Optimum downriggers. - See the line out of each downrigger in the network view. - Full control of all networked Optimum downriggers including Auto Up All which will retrieve all your weights at once or Auto Up for just one at a time. - Full remote control including Cycle Mode, Waterline Zero, and Bottom Tracking. - Control of up and down speeds as well as line on spool, line type and line strength for each downrigger. - Access to important software updates and the ability to push software updates right from the app. - Multiple view options

About

Trolling Angles

Read full description

The Trolling Angles app provides an economical, accurate, rapid, convenient, and versatile process and means with which a trolling angler can know how to present any trolled lure or bait at the desired depth where fish are most likely to perceive and strike the lure or bait. In a calibration phase, the angler uses the app to measure and record the angle of incidence between the water surface and the actual rigged trolling line, at multiple different line lengths. In an analysis phase, the app calculates a curve data structure which approximates the actual curved trolling line profile. In a trolling phase, after calibration and analysis, the angler specifies the desired depth, and the app uses the curve data structure to look up and display the line length which is required to troll at that depth. The patented method used by the Trolling Angles app does not rely on knowing the values of variable physical factors such as weight, line diameter, or lure geometry, or the mathematics of the physics which depends on those factors. It does not rely on external data for specific lure types. It does not rely on observing and measuring the submerged lure. Trolling Angles relies only on the line lengths and angles of the line as it enters the water surface, observed with the tackle and conditions in actual use. All configuration input data consisting of line lengths and angles, is generated, stored, and owned by the user on the local device. The free download of Trolling Angles is inactive. Features are activated by buying a subscription or license.

Screenshots

Cannon Downriggers4 screens
Trolling Angles3 screens

Verdict

The call

The clearest difference is in-app purchases: Cannon Downriggers at none against Trolling Angles's 3. Cannon Downriggers also leads on device support (3 vs 1) and iOS requirement (11.0 vs 17.0). Trolling Angles's advantage is update cadence (every 6 months vs every 18 months). On price and ads 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. Trolling Angles sells 3 in-app purchases, starting at $2.99 per month. Cannon Downriggers asks for nothing beyond the download.

UpkeepUpdate frequency

Cannon Downriggers ships an update every 18 months, Trolling Angles every 6 months. The most recent releases landed on September 17, 2026 and October 5, 2026 respectively.

Scorecard4 real differences · 6 level
Cannon Downriggers versus Trolling Angles: the parameters behind the verdict, then further details
ParameterCannon DownriggersTrolling Angles
PriceFreeFree
Rating2.5 (13 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings13 — better—
Update frequencyEvery 18 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11.0 — better17.0
Further details — not scored
Size26 MB2 MB
Age rating4+17+
DeveloperJohnson Outdoors Inc.D A Silkworth Software LLC

In-app purchases

None

Cannon Downriggers

No in-app purchases

3 purchases

Trolling Angles

Subscriptions2
  • TA Premium Monthly1 Month trial$2.991 Month
  • TA Premium Annual$9.991 Year
One-time1
  • TA Elite Permanent$29.99

Questions

Is Cannon Downriggers free?
Cannon Downriggers is free to download, with no in-app purchases.
Is Trolling Angles free?
Trolling Angles is free to download, with in-app purchases available.
Do Cannon Downriggers or Trolling Angles have ads?
Neither Cannon Downriggers nor Trolling Angles shows ads.
Which is updated more often, Cannon Downriggers or Trolling Angles?
Cannon Downriggers ships an update every 18 months, and Trolling Angles every 6 months. Most recently, Cannon Downriggers was updated on September 17, 2026 and Trolling Angles on October 5, 2026.

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