See your loop. Fix your cast.

Film a cast with your phone. Tight Loop draws your rod tip path on the video, names the fault, and gives you one thing to try.

Coming soon to the App Store and Google Play

Free for your first three casts, then $1.99 once.

A fly cast filmed side-on, with its rod tip path drawing itself on the videoBack castPauseForward cast
Simulated cast, drawn by the app.

1

The rod tip path, drawn on your video.

The thing no caster can see while casting.

Film one cast side-on. The app follows the very end of the rod, frame by frame, and draws its path over the video. It splits each cast into back cast, pause and forward cast, so you can see where the loop is made and where it goes wrong.

The same cast, plain video
Your video
The same cast with its rod tip path and stroke bands
Back castPauseForward cast
With the trace and the stroke bands

The fault, named in your words.

No invented terms. The words your instructor already uses.

Each fault comes with what happened, its likely cause and one thing to try. Tap a fault in the app and the video jumps to it.

Read about each fault

Tailing loop: the trace, the straight line it should follow, and the stretch where it strays

Tailing loop

Your rod tip dipped below the straight line during the stroke, so the front of the line crossed under the back.

Likely cause
uneven power
Try this
Smooth from slow to fast, then stop crisply. Widen the arc for the line you're carrying.

2

Yesterday's cast as a ghost over today's.

Progress you can see, even before you can name it.

Lay an earlier cast under today’s and line up the stops. When a fault is gone, make a progress card: before and after, with your scores, ready to share.

Today's cast in orange over an earlier cast in blue
A progress card: the tailing loop before and the fixed cast after, with both loop scores

3

Your instructor's notes, on your clip.

Send a clip; it comes back with their drawing and voice. No accounts.

Your instructor opens the clip with the trace already on it, draws with a pen, arrow or angle, and talks over the video. It comes back to you the same way it went: by message, email or AirDrop.

An instructor's pen mark on a student's castDip here

How it works, in four steps.

  1. Film or import

    Film or import

    Prop the phone up, stand side-on to it and cast. Or import a clip a friend filmed.

  2. Tap the rod tip on three frames

    Tap the rod tip on three frames

    The back-cast stop, mid-stroke and the forward-cast stop. About ten seconds.

  3. Watch the trace

    Watch the trace

    Your rod tip path on the video, the faults it shows and your loop score.

  4. Share or send it

    Share or send it

    Make a progress card, or send the clip to your instructor.

Private by design.

Your casts are analyzed on your phone and stay there. No accounts, no ads, no tracking.

Read the privacy policy

One price, once.

Free for your first three casts, with no clock. Then $1.99 once. No subscription, ever.

See what Pro adds

Eight languages.

The app and this site speak all of them, with the fault names instructors use in each.