Comparison

Luckysmart Sonar vs Erchang Fish

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

Head to head

Dual frequency fish finder

Free

🔧 Utilities

No ratingsView app →

About

Luckysmart Sonar

Features

Read full description

Luckysmart Sonar APP is an APP for wifi fish finder, and it is also a simple and convenient operation APP. Mainly used for outdoor fishing, but also for outdoor wading, outdoor swimming and other scenes that require underwater conditions. Provide users with intuitive underwater information intelligence, which can display the depth of the water area, the temperature of the water area, whether there are plants and rocks underwater, the depth position of the fish layers, and the contour of the water bottom.

About

Erchang Fish

This intelligent fish detector app offers a dual-band sonar system with a user-friendly interface. It's designed to be a helpful tool for fishing enthusiasts, providing convenient operation for better angling experiences.

Highlights

Dual band intelligent fish detection
Friendly interface
Convenient operation
Fishing helper tool

Features

Read full description

This is a dual band intelligent fish detector app with friendly interface and convenient operation. It is a good helper for fishing lovers.

Screenshots

Luckysmart Sonar2 screens

Erchang Fish4 screens

Verdict

The call

The clearest difference is update cadence: Erchang Fish at every 7 months against Luckysmart Sonar's every 15 months. Erchang Fish also leads on iOS requirement (9.3 vs 13.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Luckysmart Sonar ships an update every 15 months, Erchang Fish every 7 months. Both last shipped on November 3, 2026.

Scorecard2 real differences · 6 level

Luckysmart Sonar versus Erchang Fish: the parameters behind the verdict, then further details
Parameter	Luckysmart Sonar	Erchang Fish
Price	Free	Free
Positive reviews	—	33.3% of reviews
Update frequency	Every 15 months	Every 7 months — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	13.0	9.3 — better
Further details — not scored
Size	51 MB	68 MB
Age rating	4+	4+
Developer	天喜胡	定敢刘

In-app purchases

None

Luckysmart Sonar

No in-app purchases

None

Erchang Fish

No in-app purchases

Questions

Is Luckysmart Sonar free?

Luckysmart Sonar is free to download, with no in-app purchases.

Is Erchang Fish free?

Erchang Fish is free to download, with no in-app purchases.

Do Luckysmart Sonar or Erchang Fish have ads?

Neither Luckysmart Sonar nor Erchang Fish shows ads.

Which is updated more often, Luckysmart Sonar or Erchang Fish?

Luckysmart Sonar ships an update every 15 months, and Erchang Fish every 7 months. Most recently, Luckysmart Sonar was updated on November 3, 2026 and Erchang Fish on November 3, 2026.