Chum: Offline Fish ID & Regs
Saltwater fishing catch log
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Point it at a fish. Get species, size/bag limits, and a log of every catch — NO SIGNAL REQUIRED! Atlantic & Gulf now; more coming soon.
Point Chum at a fish and it tells you what you caught — right on your phone, no signal needed. Then it shows the rules for the water you're standing in, and files the catch in a log you'll actually keep.
WORKS ENTIRELY OFFLINE
Identification runs on the phone. Forty miles out, no bars, it still answers. Regulations, species pages, and your log are all on board.
WHAT YOU CAUGHT
• Camera ID for 280+ Atlantic and Gulf saltwater species, offshore to inshore
• Import a photo you already took — same answer
• Not sure? Browse the look-alikes and set it straight yourself
THE RULES WHERE YOU ARE
• Size, bag, and season for your waters — state and federal, chosen by where you are
• Every rule names its source and the date it was checked
• Measure diagrams that show which length the rule means
• Browse any coastal state from Maine to Texas
A LOG WORTH KEEPING
• Every catch with its photo, species, length, weight, kept or released
• The moment it happened: tide, moon, barometer, speed, and the waters you were in
• Trips, species walls, and a map of where you've fished — like Photos, for fish
• Log notes about your catches/trips, snap photos of your lure setup, and more.
• Backed up to your account and synced across your devices
SHARE THE ONES THAT MATTER
• Catch cards and story cards for the group chat, signed with your name or handle if you like
• Send Catch: a buddy snapped your fish on his phone? One link puts it in your log, record and all
• Your spots stay yours. Individual catches are never published or identifiable.
ALSO ON BOARD
• Species guide with real photos, how to tell it apart, and what it's like on the table
• State records for your waters with an indicator if you exceed the record and where to certify your trophy catch
• License wallet with expiry reminders, kept in your own iCloud
COVERAGE
Atlantic and Gulf coasts, Maine to Texas, at launch. West Coast species and rules arrive as an update that installs itself. Regulations change; Chum shows its sources and check dates, and the official rulebook is always the final word.
Free for a limited time. No ads. Made by a saltwater angler in North Carolina.
Ratings & Reviews
A new Guide and smarter rules.
• Redesigned Guide: search every fish, see what's open or closed today with season bars, and what's changing soon. Star your favorites.
• State or federal: switch between state and federal waters, and get a heads-up when you're near a line.
• Rules that change inside a state: bays, rivers, parks and special zones now answer from your location, from the Keys and Everglades to the Savannah River.
• New guides for gear rules and how to measure your fish.
• Choose which screen Chum opens to, or touch and hold the app icon to jump straight to the camera, Guide or Catch Log.
• Pick a cover photo for each trip in your Catch Log.
• Your units, favorites and custom species now follow your account to every device.
• Speed and stability improvements, including a fix for a slow Guide right after launch.
The developer, Patrick Imhof, 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 Linked to You
The following data may be collected and linked to your identity:
- Location
- Contact Info
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Patrick Imhof
- Size
- Up to 139.1 MB
- Category
- Reference
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Copyright
- © 2026 Chum