Map the waters you fish and maximize your catch rate with the Deeper Smart Sonar fishing app.

The original Deeper fish finder app is a must-have for any smart angler. It works with or without a Deeper sonar and boasts great features for planning fishing trips and maximizing your catch rate. Know when and where to fish, measure the depth, find your targets, reel them in, log your catches and share them on social media. All in one convenient app.

*We are currently working on developing the new amazing Fish Deeper App.

Features anyone can use:
• PLAN YOUR NEXT ANGLING TRIP with the solunar calendar (view hourly, daily, weekly and monthly information) and weather forecasts (check temperature, wind, humidity, pressure and sunset/sunrise).
• LOG EVERY CATCH: Record GPS coordinates, time and weather. Make notes to keep a detailed record of your best catches.
• MAP YOUR TRIP: Download offline maps, then mark and save your favorite spots.
• SHARE YOUR CATCHES with fellow anglers using the app’s camera mode. Just snap that trophy catch and share it on social media.
• DISCOVER DEEPER: Run the sonar simulations to discover how a fish finder can revolutionize your fishing.

Then take your smart angling to the next level by using the Deeper Smart Sonar App together with a Deeper sonar (explore our product range at Combined with one of these fish finders, the Deeper Smart Sonar App turns your smartphone into a high-grade sonar display.

• GET DATA to enhance your angling - depth, temperature, bottom structure, vegetation, fish location and more, all displayed live on your smartphone screen.
• TAKE CONTROL of your sonar readings with fully adjustable sensitivity, fish and depth alarms, a range of display options and scanning beam angles: narrow or wide (also mid for the CHIRP+).
• CHOOSE DIFFERENT MODES for different types of angling. Use it as a fish finder from the shore, ice flasher in ice fishing mode, or map the waters you fish in boat mode.
• CREATE BATHYMETRIC LAKE MAPS directly from the shore in onshore fishing mode (only with the PRO+ and CHIRP+ models) or with a Deeper sonar mounted to your boat or kayak (all models, expect the START).
• VIEW AND ANALYZE your lake maps on your PC/laptop using Lakebook™ bathymetry management platform. Log in at to see your maps and download raw mapping data.
• MAP AND MARK EVERY ICE FISHING HOLE and store data from your Deeper sonar for every location in ice fishing mode (all models, except the START).
• STORE ALL YOUR ANGLING DATA collected from your Deeper smart sonar with unlimited data storage in the app.

What’s New

Version 9.0.1

The old Deeper Smart Sonar App is now back on App Store, so you can enjoy the features you’ve been missing while we are working on developing Fish Deeper.

Ratings and Reviews

4.6 out of 5
45 Ratings

45 Ratings

Avenko ,

Works great!

A great app and product. Bring one's fishing to a completely new level.

Ksystof ,


I’m using with Iphone 7, IOS 12, deeper pro+ device.

1. If you have few kilometers drawn batimetry it lags to refresh the sonar window for 5-15 seconds, I’m getting 1-2 seconds portions of sonar view each 5-15 seconds. Impossible to use boat mode.
2. I do hope developers will strongly improve the performance, cause it is obvious that customers who use in boat cannot use the app.

Developer Response ,

Hello, sorry to hear that you've experienced such issues. We would like to investigate and improve this as soon as possible, but perhaps you have a screen recording of this issue, or maybe you could provide us with more details (e.g. does it only happen when you have bathymetry of that lake drawn, but doesn't happen on new lakes, etc). It would be great if you could email us at . Thank you.

Happygolucky77 ,

Great all-in-1 fishing app

Great app, i used to use it even without the deeper gadget. Now i use both sonar and the app everytime i go fishing.


Deeper UAB
127.3 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad and iPod touch.


English, Bulgarian, Czech, Dutch, Finnish, French, German, Hungarian, Italian, Japanese, Korean, Lithuanian, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Traditional Chinese, Turkish, Ukrainian

Age Rating
This app may use your location even when it isn't open, which can decrease battery life.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

You May Also Like