Archer's Portal

Archer's Portal is the precision toolkit for serious archers - tournament shooters, 3D leagues, and Western bowhunters alike. Built on
the math, designed for the field.

TAPE BUILDER
Build pixel-precise sight tapes from your real measurements. The
physics engine - an RK4 ballistic integrator with explicit air density
- extrapolates clean, smooth marks past your last measured yardage. No
more guessing what the dot will hit at 80 when you only shot out to 60.

• Brand presets and full custom mode
• Per-row mean, standard deviation, and outlier flagging
• Optional bow + arrow profile for atmosphere-aware extrapolation
• Color bands, custom cap logos, PDF export verified against a
credit-card scale box
• Pinch-zoom preview, share sheet to AirDrop or print

BOWS
Catalog every bow you shoot. Peep height, sight radius, draw length
and weight, chronograph speed, axle-to-axle, let-off. Tag your daily
driver, your backup, your hunting rig.

ARROWS
Full component breakdown with live front-of-center (FOC) computed as
you edit. Shaft, point, insert, nock, fletching, wraps - change any
value and watch your balance shift in real time.

SPINE CALCULATOR
Easton-style static spine recommendation with all the standard
adjustments - arrow length, point weight, cam aggression, release
style. Quick, conservative, and shows its math.

FOC CALCULATOR
Standalone what-if for testing builds before you cut anything.

SCORECARD
Multi-player round scoring built for ASA, IBO, Body, WA 3D, NFAA
Field, or any custom system. Pick a scoring matrix, add players, tap
the rings shot-by-shot. Bonus shots (twelves, fourteens, custom point
values) are supported. Live leaderboard. PDF export at the end.

WHAT IT DOESN'T DO
No accounts. No cloud servers we control. No analytics. No ads. No
tracking SDKs.

Your data lives on your device. If you sign into iCloud, it syncs to
your other Apple devices through your own private iCloud Documents
container - we never see it.

BUILT BY ARCHERS, FOR ARCHERS
Made with feedback from competitive 3D shooters and Western hunters.
Tested against real-world sight tapes from Dialed Archery. Ships with
the physics-based engine, not lookup tables.