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Today
Know Today's Best Bite Window
See when fish are most active today so you know when to push and when to wait.
Species-Specific Bite Ratings
Know Your Best Fishing Days Before You Go.
PrimeBite rates each day by the species you actually target — so you can see which days look stronger, why the rating changed, and whether the trip is worth the drive.
Species-specific
30-day forecast
Offline-first logbook
No ads or tracking
Free on iPhone. Try Premium free for 2 weeks — full 30-day forecasts, all species.
Built for real trip decisions, not curiosity checks.
Plan the trip
Use the 30-day view before you commit the gas, time, and weather window.
Target the species
Ratings change with the fish you are actually going after.
Keep what works
Log catches, notes, and photos so your own patterns get sharper.
Made for the water
Core tools still work when signal drops out.
60-Second Overview
See exactly how PrimeBite tells you when fish are biting.
Bite ratings backed by real research. Weather built for anglers. A logbook that finds your patterns. Custom alerts that ping you when your forecast hits.
- 1-to-5 bite ratings for 9 species, with the math behind every number
- Real weather: tides, pressure, marine forecasts, 30-day ahead
- Smart logbook that auto-captures 7 days of conditions per catch
- Custom alerts when your species hits the rating you set
Tap to unmute. Free to download — Pro free for 2 weeks.
Species-Specific Models
PrimeBite does not treat Walleye, Muskie, and Tuna like the same fish.
Research Transparency
You can see the research and drivers behind the ratings instead of trusting a black box.
Built For Low Signal
Core tools are made to keep helping when service drops on the water.
Private By Default
No ads, no cross-app tracking, and no feeding your data into an ad machine — only anonymous in-app usage to improve the app.
Free to start. Built for iPhone. Made for real fishing decisions.
Download PrimeBite
See The Research
Product Preview
From Quick Check To Full Trip Plan
Open PrimeBite, see today's window, scan the next 30 days, and keep a record of what actually paid off.
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Forecast
Plan Trips Up To 30 Days Ahead
Use the forecast to spot better days before you burn time, fuel, or PTO.
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Species Detail
See Why The Rating Changed
Dig into the species view to understand what is pushing the rating instead of trusting a mystery number.
Try It Right Here
Watch A Rating Build Itself
Every PrimeBite rating starts at a baseline. Then each research-backed driver pushes it up or holds it back — and the app shows you every step. Pick a species and watch one sample day add up.
Example day shown. In the app, ratings are built live from the real conditions at your location and date — moon, season, weather, and ocean data depending on the species.
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How this day adds up
Why PrimeBite
Built For Anglers Who Want Fewer Guesses
Most fishing apps flatten everything into one generic score. PrimeBite does not. Walleye, Muskie, Tuna, Mahi, and other species follow different patterns, so PrimeBite uses species-specific logic built from real evidence instead of one blanket answer for every fish.
This should feel like a serious decision tool for anglers, not another generic fishing app with pretty charts and weak logic.
Different fish, different logic
The rating changes based on the species you are actually targeting.
Built from real evidence
PrimeBite leans on research and public transparency instead of mystery scores.
Made for real conditions
Offline support and clean tools matter when you are on the water, not on the couch.
Core Outcomes
Plan Better Trips. Make Better Calls.
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Before the trip
Time The Bite Better
See the windows that matter instead of guessing from a moon chart and hoping it lines up.
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Before you commit
Choose Better Days
Spot stronger forecast days before you commit to the trip.
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After the trip
Learn From Your Own History
Use the logbook to build a record of what works for you over time.
Species Science Edge
Each Species Has Its Own Logic
PrimeBite does not use one blanket fishing score. Each supported species has its own model, and we openly explain the research and drivers behind the ratings.
Freshwater
Light-driven
Walleye
Peak: Dawn, dusk, and low-light hours; spring post-spawn
Factors: Light (twilight + solar), seasonality, small moon phase
Source: Shaw 2021, Deroba 2007
Freshwater
Moon-driven
Muskie
Peak: Full Moon
Factors: Moon intensity, seasonal patterns
Source: Kuparinen et al. 2010
Offshore
Ocean data
Mahi-mahi
Peak: New Moon to First Quarter
Factors: Sea surface temperature, chlorophyll
Source: NC Sea Grant
PrimeBite Pro
See The Full Picture Before You Go
Start with the free view, then unlock the deeper forecast when you want better trip planning, more species detail, and more context behind the rating.
Start Free On iPhone
30-day planning
More species detail
Deeper rating context
This should feel like a worthwhile upgrade for serious anglers, not a paywall slapped on top of a weak free app.
- Full 30-day forecast planning
- All supported species models
- Deeper "Why This Rating" context
- Better trip calls before you leave home
FAQ
What Anglers Usually Ask First
Does the app work offline?
Yes. Core features are built to work offline, which matters when you lose signal on the water.
Does it track me?
No. PrimeBite has no ads, no cross-app tracking, and no third-party trackers. The only thing we collect is anonymous in-app usage to improve the app — never sold, never tied to your identity.
Are location and photos required?
No. Both are optional. The app still works without them.
Can I back up my data?
Yes. You can export your data and import it later from Settings.
Transparency
Most Fishing Apps Are A Black Box. We Show Our Math.
Every PrimeBite driver traces back to published research you can read yourself. We publish the sources and driver explanations for every supported species.
Typical fishing app
- One generic score for every fish
- No sources. You just trust the number.
- No explanation when the score changes
PrimeBite
- A separate model for each species
- Published research and sources, linked below
- Every driver shown in the app, every day
Walleye
Lab studies show walleye feeding peaks at twilight — and drops off in both bright light and full darkness. That's why light conditions drive the Walleye rating.
Michels et al. 2025Muskie
Multi-decade catch records show moon phase measurably shifts catch rates for Muskie and their cousins, peaking around the full moon.
Kuparinen et al. 2010Yellowfin Tuna
Offshore catch records show yellowfin and mahi bite best in the new-moon-to-first-quarter window. The app tracks that window for you.
NC Sea GrantWe use peer-reviewed, open-access research for the main drivers, then calibrate how those drivers are weighted into the final score. Exact calibration details stay proprietary. Read the full research breakdown for any species:
Contact
Need Help Or Want To Report Something?
Email: primebitefishing@gmail.com
Please include: device model, iOS version, app version, steps to reproduce, and screenshots.
We usually reply within 1-2 business days.
Ready When You Are
Check The Bite Before You Drive There
Free to start
Built for iPhone
No ads or tracking
PrimeBite gives you a cleaner way to time the bite, plan ahead, and make better trip calls before the day is gone.