Fish Deeper - Fishing App 4+

Explore waters, find fish

Deeper UAB

    • 4.6 • 126 Ratings
    • Free
    • Offers In-App Purchases



Fish Deeper is the modern fishing app designed for Deeper sonar as a fish finder and for all anglers who want to plan fishing trips more effectively by exploring depth maps and finding best fishing spots.

Easily plan your fishing trips with over 50 000 global lake depth maps on any device: phone, tablet or computer. Both online and offline. Know every island, pit, depth and other details that will lead you to whichever species you're after.

• Search for preferred lakes and choose potential fishing spots.
• Check detailed weather forecast.
• Mark your favourite places.
• Keep track of your fishing spots and catches.
• Log technique and baits or lures used.
• Add, edit and view pictures and notes.
• Download and use offline maps.
• Have your data synchronised across all platforms.

Experience Fish Deeper at its full potential when fishing from a boat, shore, or on ice using Deeper castable sonar.

• Discover what's happening underwater in real time.
• Gain strategic knowledge and understanding by analysing sonar data on any device.
• Create bathymetric maps from any small boat, kayak, SUP or when casting the sonar directly from the shore.
• Use your sonar as an ice fishing flasher and easily mark your holes.
• Control and adjust your sonar settings to suit your fishing style and needs.
• See and explore your full scan history.

Take your fishing experience to the next level with Fish Deeper now!

What’s New

Version 1.22.0

Catch the biggest fish & win!

• For the first time ever, we're introducing Deeper Summer Catch '22! Make this summer memorable by reeling in your biggest catches and dominating the leaderboard. The best anglers will snatch prizes every month: Deeper sonars and accessories.

Campaign is available in the following countries: Czech Republic, Bulgaria, Germany, France, Italy, Netherlands, Lithuania, Poland, United Kingdom, United States.

Ratings and Reviews

4.6 out of 5
126 Ratings

126 Ratings

gfghdtvshhfh ,

Great instrument.

Still learning how best to use this, but I’m enjoying at least knowing the depth and structure that I’m fishing. Having never had a sonar (or a boat!), I’m not aware of all the limitations, and it seems to work well for me as a shore fisherman. I know now where some deeper spots are that I can cast to - I find that I can only cast the sensor about as far as I can cast. It loses connection sometimes, but I think that if it stops for a more lent, it reconnects.

The first couple of times I went out I dedicated a rod to it, but lately I just carry it in my shirt pocket. It’s light enough. I use 10-pound test, and it seems secure. It’s sort of a trick to cast it far if you’re not used to that much weight. I probably get about 75-80 feet.

Fun product, thanks.

rallx ,

Awesome app, questionable privacy policy

As far as I can tell, the app and the sonar device are of excellent quality and utility. Not too long ago, functionality like this would have cost way more.

However, it appears that all of the user’s bathymetry data are automatically uploaded to the company who catalogs it, anonymizes it, and combines it with other users’ data to offer their premium service (however else they might use it is unclear). The privacy policy is vague about who actually owns the copyright to the bathymetry data that the user collects with the device that you have paid for. The web site FAQ does state that you can request to have removed any bathymetry data from a private lake but ONLY if you provide evidence that you own the lake! So basically, you are paying for the privilege of collecting data for them to market as they wish.

I don’t mind this as a business model, but I wish they would be explicit so that all users know what they are actually buying into. The privacy policy or terms of use really ought to say in plain language: “You agree to turn over all of your bathymetry data to the company who can sell and market it however they choose.”

Even better would be if they’d offer the user the ability to opt out of automatically turning over the user’s own data to the company.

Developer Response ,

Hello there, many thanks for being an active part of the Deeper community and sharing your concerns.

Global bathymetric maps (Premium service) are community-based maps that are made from fully depersonalized depth and GPS data of Deeper Sonars, and there are no references left to personal information, sonar scan data, marks, or catches registered by users. Personal depth maps that are created by users are not shared in any way, and nobody else can see them apart from the users who actually created those maps.

All Deeper Sonar users have a free access to Premium service for 3 months, and they have an option to extend this free access indefinitely by scanning lakes with their Deeper sonars.

Furthermore, users have an option to opt-out of sharing the depth/GPS of their sonars by choosing to use the anonymous mode within the app.

Apart from this paid feature, we are always developing and releasing free app features and improvements that add more value and usability to Deeper Sonars. Zoom feature, custom depth color palettes and distance measurement feature are just some of the features that we’ve released over this year. Many new free features will be released in the future.

If you happen to have any additional questions or concerns, please drop us an email at and I’ll be happy to discuss it with you. Regards, Andrew from Deeper.

india359 ,

Great app

Great app, very useful and user friendly.

Just wish there was a “fish species guide” available for quick references. Would come in handy to have a library while trying to identify unknown species. then I could delete the other apps on my phone. Such a pain jumping from one app to another. Would probably increase user productivity and app usage as well.

App Privacy

The developer, Deeper UAB, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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