# Precision Trolling vs Cannon Downriggers

The clearest difference is review sentiment: Precision Trolling at 90% against Cannon Downriggers's 0%. Precision Trolling also leads on rating (4.5 vs 2.5) and update cadence (every 6 weeks vs every 18 months). Cannon Downriggers's advantage is in-app purchases (none vs 11). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Precision Trolling sells 11 one-off in-app purchases. Cannon Downriggers asks for nothing beyond the download.

Precision Trolling holds the better App Store score, 4.5 against 2.5. That said, the two scores are not equally well evidenced: Precision Trolling has 917 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 90% of Precision Trolling's written reviews are positive against 0% of Cannon Downriggers's.

Precision Trolling ships an update every 6 weeks, Cannon Downriggers every 18 months. The most recent releases landed on September 27, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Precision Trolling | Cannon Downriggers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (917 ratings)](https://appshunter.io/ios/app/precision-trolling/id873119178/reviews)** | [2.5 (13 ratings)](https://appshunter.io/ios/app/cannon-downriggers/id1432658912/reviews) |
| Number of ratings | **917** | 13 |
| Positive reviews | **89.8% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 18 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 8 MB | 26 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PRECISION TROLLING DATA, LLC](https://appshunter.io/developer/873119181) | [Johnson Outdoors Inc.](https://appshunter.io/developer/775931463) |

## What reviewers say

### Precision Trolling

[App page](https://appshunter.io/ios/app/precision-trolling/id873119178)

This app provides anglers with precise lure depth data for effective trolling. It helps predict lure running depths, target fish accurately, and avoid snags. Easily find productive lure and lead length combinations to maximize your time in the strike zone.

**Highlights:** Predict lure running depths, Target fish at specific depths, Avoid costly snags, Duplicate productive lure combinations, Search for lures at similar depths, Data Wheels for feet down/back calculation

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flicker Shad 5 | $2.99 | one-time |
| Deep Husky Jerk DHJ-12 | $2.99 | one-time |
| Deep Diver Model 800 | $2.99 | one-time |
| Flicker Minnow 9 | $2.99 | one-time |
| Flicker Minnow 7 | $2.99 | one-time |
| Bandit Deep Walleye 5/8 oz | $2.99 | one-time |
| Smithwick Perfect 10 Rogue | $2.99 | one-time |
| Berkley Flicker Minnow 11 | $2.99 | one-time |
| Snap Weight 2 oz. | $2.99 | one-time |
| Snap Weight 1 oz. | $2.99 | one-time |
| Lifetime Package | $109.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 🔒 Accurate data
- 👍 Helpful for trolling
- 👍 Expands library of lures
- 👍 Useful even without cell service

**What reviewers complain about**

- 🐛 Requires restoring purchase after update
- 🐛 Slow to update with new lures
- 🐛 Crashes and glitches
- 🐛 Limited line and weight options
- 🐛 Hard to see in bright sunlight

**Reported bugs**

- Restore purchase not working
- Duplicate data entries
- Frequent crashes and freezes

**Requested features**

- Add more lures and line/weight options
- Improve app stability and responsiveness
- Add visual dive curve graphs
- Allow transfer of purchases between devices
- Provide trolling speed data for lures


### Cannon Downriggers

[App page](https://appshunter.io/ios/app/cannon-downriggers/id1432658912)

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:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Precision Trolling free?

Precision Trolling is free to download, with in-app purchases available.

### Is Cannon Downriggers free?

Cannon Downriggers is free to download, with no in-app purchases.

### Which has better reviews, Precision Trolling or Cannon Downriggers?

Precision Trolling is rated higher. Precision Trolling averages 4.5 out of 5 from 917 ratings, while Cannon Downriggers averages 2.5 from 13 ratings.

### Do Precision Trolling or Cannon Downriggers have ads?

Neither Precision Trolling nor Cannon Downriggers shows ads.

### Which is updated more often, Precision Trolling or Cannon Downriggers?

Precision Trolling ships an update every 6 weeks, and Cannon Downriggers every 18 months. Most recently, Precision Trolling was updated on September 27, 2026 and Cannon Downriggers on September 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*