Archery Score Log: Sight Marks

Tap the target where each arrow landed and the score is worked out for you. See where your group drifts and how far to move the sight pin.

A score log for recurve, compound, barebow and longbow archers, coaches and club shooters, and for Korean traditional archery (Gungdo) shooters who count hits per round.
No sign-up, no ads, no internet: records stay on this phone, and you pay once. One backup file brings everything to a new phone.

■ Good to know first
· It does not read arrows from a camera photo. You tap arrow positions with your finger (or key in scores with the number keys).
· No official tournament score sheets, rankings or sharing records with others. Send the record PDF yourself.
· Sight mark estimates fill gaps between tuned distances with a curve. This is not a ballistics calculator, so shoot to confirm any new distance.
· Field rounds use one distance and one face size for all targets.
· Gungdo range (145 m), target size and arrows per round start from customary values; any not checked against the rule text are flagged «Needs checking». Edit them in Settings if your range differs.
· No account, server or permissions.

■ Score by tapping the target
· Press and drag: an aim point appears above your finger, and a corner magnifier shows the spot at 3x with its score. Lift to place the arrow.
· Arrows touching a line take the higher score.
· Or key scores with X, 10, M and number keys in the ring colors.
· Tap an end on the score sheet to edit it.
· Number your arrows to find the one that keeps straying from the group.

■ Round formats
WA 70m, 60m, 50m compound, WA 1440, indoor 18 m (40 cm, 3-spot, compound inner 10), field 24 targets, Gungdo 3 and 5 rounds, plus 30 m and 50 m practice. Edit them or build your own; past records keep their format.

■ Group analysis and sight correction
· Group center, mean radius and left/right and up/down spread, per end and per distance.
· It says «off-center» only when the center is far enough off compared with the spread (offset > 2 x standard error), so chance clusters do not move your sight.
· For bows with a sight it gives direction and amount, like «pin right 0.38 mm, up 0.15 mm». For Gungdo and barebow it tells you which way to move your aim.
· A purple line traces the group center end by end, so you see it move to the middle after a sight change.

■ Sight marks by distance
Build a table of tuned marks for each bow. Enter a distance and the app estimates the mark with a curve through the three nearest ones; outside the tuned range it says «Out of range, shoot to confirm».

■ Gungdo hit log
Tap the spot on the 145 m target where each arrow landed, or use the Hit and Miss keys. It counts hits per round, full-hit rounds and hit rate. Missed arrows keep their spot too, so you can read short, long or sideways. Goals like «15 hits in 5 rounds» are tracked too.

■ Equipment and trends
· Bow profile: type (recurve, compound, barebow, longbow, Gungdo), draw weight and length, arrow details, aiming distance, notes.
· Score trend per round, personal best (completed sessions only), last-5 average, share of 10+X, X and M, best end and mean group radius trend. Practice and competition are shown separately.

■ Record PDF
Shooter, date, round, bow, weather and wind, a target drawing per distance with correction notes, the score sheet (end, arrows, total, running total, 10+X, X) and notes, as one A4 document for your coach.

■ Units
Yards and mph by default in the US, meters and m/s elsewhere. Switch between metric and yards/pounds in Settings. WA round distances (m) and face diameters (cm) keep their official sizes; only the display changes.

■ First launch and backup
Sample records hold four weeks of 70 m practice, indoor 18 m and three Gungdo sessions; one tap on «Clear samples» removes them. Export records, bows, sight marks, round formats and reference values to one file and restore on a new phone. Questions: «Contact» in the app.

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