No. 01
BiteScore forecast
Solunar timing, daylight overlap, moon phase, weather and tide movement weighted into one rating, Poor, Fair, Good or Excellent, with a one-line reason so the number isn't a black box.
Fishing Almanac · iOS
Plan the next good bite window.
A private fishing almanac for anglers who'd rather read the water than the algorithm. Bite-window timing from solunar, daylight, weather and tide, plus a one-tap outing log that never leaves your iPhone.
What's inside
Less guessing before you head out.
Three layers: the bite-window forecast, the local context that backs it up, and the private record that tells you what actually works at your spots.
No. 02
Real conditions
WeatherKit temperature, wind, precipitation and pressure at your exact spot. NOAA tide highs and lows where a coastal station is in reach. Quiet when data isn't available, no invented numbers.
No. 03
Private outing log
Record Caught, Skunked or Did Not Fish in one tap. Add species, count and notes later. Everything stays on your device, no account, no cloud sync, no public map of your spots.
Methodology
How the BiteScore is calculated.
BiteScore is a 0–100 read on how likely fish are to feed at a spot and time. It's a weighted blend, not a guarantee, here is exactly what goes into it, so you can argue with it.
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Solunar timing, majors & minors
Solunar theory, set out by John Alden Knight in 1926, holds that fish feed most during majors (moon overhead or underfoot) and minors (moonrise and moonset). CatchTime computes both for your location and day.
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Light first, moon second
A solunar major at midday in flat light scores far lower than one landing on dawn or dusk. CatchTime weights the overlap between feeding windows and low light, the hour around sunrise and sunset, most heavily, because in practice light drives feeding more reliably than the moon alone.
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Weather
Apple WeatherKit supplies temperature, wind, precipitation and barometric pressure at your exact spot. A falling barometer ahead of a front and a light chop tend to help; a flat bluebird high tends to hurt.
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Tide movement
Where a NOAA station is within reach, CatchTime factors moving water, fish often feed harder on a rising or falling tide than at slack. Inland, or where no station is near, tide is left out rather than guessed.
BiteScore is a planning aid, not a promise, the water has the final say. Sources: NOAA Tides & Currents, Apple WeatherKit, and the solunar theory of John Alden Knight (1926).
The score, in plain language
A rating you can actually argue with.
Every daily score breaks into its parts, solunar, daylight, weather and tide, so you can see why it's Good and not Excellent, and tune your read against your own logged outings.
28wind up, moon off, tide flatPoor
54mixed signals, window narrowFair
71solunar clean, weather holdsGood
86majors line up with low lightExcellent
What it does, and doesn't
Honest about the edges.
CatchTime does
- Forecast bite windows from solunar, light, weather and tide
- Show NOAA tide highs and lows near coastal stations
- Keep your catch log on-device, with no account
- Use location only for local forecast context
- Run on iPhone (iOS)
CatchTime doesn't
- Guarantee a catch, it's a probability, not a promise
- Estimate tides inland or out of station range (it stays quiet)
- Sync across devices or back up to a cloud
- Share your spots, coordinates or notes anywhere
- Run on Android or the web (iOS only)
Questions anglers ask
Straight answers.
What's the best time to fish today?
Usually when a solunar major or minor overlaps low light, the hour around sunrise or sunset, with stable or falling pressure and some tide movement. CatchTime computes today's windows and rates each one.
Does the moon really affect fishing?
It helps, but it's overrated on its own. Solunar majors and minors track the moon's position and matter, but light and weather are more reliable day to day, which is why CatchTime weights light first, moon second.
What is a solunar major versus a minor?
Majors are the roughly two-hour windows when the moon is overhead or underfoot. Minors are the shorter windows at moonrise and moonset. Both tend to coincide with more active feeding.
Does CatchTime work for lake or inland fishing?
Yes. Solunar timing, daylight, weather and moon phase all apply inland. Only the tide layer is skipped where no NOAA station is nearby, CatchTime leaves it out rather than invent a number.
Is my catch log private?
Completely. Caught, Skunked and Did-Not-Fish entries, species, counts and notes stay on your iPhone. No account, no cloud sync, no public map of your spots.
Does CatchTime need an account or internet?
No account, ever. It uses the network only to pull current weather and tide data for your area; your catch log works offline.
Guides
Read the water better.
Plain-English explainers on what actually moves the bite, the reasoning behind every BiteScore.
Get it
Read the water, not the algorithm.
Location is used only for forecast context; StoreKit handles any purchases; analytics are opt-in and anonymous. No coordinates, notes, species or email ever leave the device.