Useful when visible. Quiet when it isn't.

Designed for

• Freestyle only.
• A steady side view or lane-end view.
• One swimmer clearly visible for 6–15 seconds.
• At least two complete stroke cycles.
• Visible findings are turned into one prioritized focus and a targeted drill.

Visible observation versus AI impression

A report may contain two different evidence levels:

• Visible observation: something that can be pointed to in the submitted frames, such as a visible head lift during breathing.
• AI impression or estimate: a qualitative interpretation of rhythm, timing or body line. These are labeled as estimates and should not be treated as instrument measurements.

Camera-angle limits

A side view can help show longitudinal timing, breathing movement and some body-line patterns, but it cannot reliably confirm left-right symmetry or hand-entry width. A lane-end view can help show width and alignment patterns, but it loses some side-on timing and depth information. Water refraction, splashes and occlusion reduce confidence in both.

Why a clip may be rejected

• The clip is too short, too long, too dark or too compressed.
• The swimmer is too small, cut off, heavily obstructed or not continuously visible.
• The camera pans, changes scene, or does not match a supported view.
• The footage shows another stroke or not enough active swimming.
• The available evidence does not support a responsible finding.

A rejection is preferable to a confident-looking answer that the clip cannot support.

Evidence and progress

SwimForm tracks the technique signals detected in each report, explicit same-view checks, and whether a signal is still active, newly detected, pending confirmation or confirmed clear. It does not present a numeric form grade. Changes in lighting, angle, camera distance and effort can still change what the camera can support.

Drills and training plans

The app links the selected finding to a drill and session template. These are general educational suggestions. Choose a controllable pace, take more rest when needed, use a wall or fins where the drill offers that option, and stop if you feel pain, dizziness or breathing distress.

How to use the result responsibly

1. Read the visible evidence, signal status and stated camera limitation.
2. Work on one cue in a controlled session.
3. Re-film from a similar angle and distance.
4. Ask a qualified coach when the finding is unclear, persistent or connected to pain.