Arrows is a precision utility for target archers that combines a spine calculator with a comprehensive shaft reference database to help both compound and recurve shooters make better-informed equipment choices. The app pairs measured shaft data — including spine, weight and diameter — with calculation tools tailored to common tuning inputs such as draw length, draw weight and point weight. Designed for archers who want a practical, repeatable workflow, Arrows focuses on clarity, allowing you to compare shafts, save setup notes and work offline when you're at the range or in the field.
Key Features
The spine calculator in Arrows accepts typical tuning inputs and returns a recommended spine range and numeric values that can be compared directly to manufacturer measurements. The shaft database ships with a large set of commonly available models and is updated regularly so newly released shafts appear in the reference list. Measured specifications include weight and outside diameter, enabling more accurate dynamic spine estimation and more meaningful side-by-side comparisons.
Search and filter tools let you narrow the database by manufacturer, spine, diameter range or weight bands; quick comparison rows show the most relevant fields at a glance. You can create named tuning profiles for multiple bows or shooting setups, store notes for individual shafts, and mark favorites so your go-to choices are always easy to retrieve. The interface favors simple tap-and-swipe controls for fast lookups during practice sessions.
How it works
Arrows guides you through a straightforward workflow. Start by creating a bow profile and entering basic parameters like draw length and draw weight, then choose point mass and arrow length. The calculator uses those inputs to estimate static and dynamic spine behavior and presents results in clear text and graphical readouts. Interactive charts let you view how changes to point weight or arrow length affect recommended spine, while comparison views align multiple shafts so you can see differences in weight and diameter at a glance.
Controls are designed for practical use at the range: numeric fields accept both imperial and metric units, sliders let you sweep point mass values for quick sensitivity checks, and filters narrow search results without leaving the current screen. All common actions are reachable in two taps or fewer, keeping the app useful during short tuning sessions between ends.
Customization and progression
The app supports progressive tuning workflows by letting you record iterative notes against a profile or shaft entry; this creates a short history of adjustments and outcomes so you can trace how changes affected grouping. Custom shaft entries allow you to add measurements for niche or custom-built shafts that may not yet be in the public database, keeping your reference set complete for personal testing. Over time, saved profiles and notes form a practical record of progression for each bow and arrow combination.
Design, accessibility and offline use
The interface emphasizes legibility with clean typography and a neutral color palette that reduces distraction while you work. Accessibility options include adjustable text size and contrast-friendly themes to support a wider range of users. Arrows caches core database information locally so you can look up shaft specs and run calculations offline; when updates are available they are downloaded selectively to minimize data usage. The app is lightweight and optimized for quick launches and battery-efficient operation at outdoor ranges.
Accuracy, scope and limitations
Arrows aims to reduce guesswork by consolidating measured shaft data and offering quantitative spine calculations, but it is a reference and calculation tool rather than a substitute for hands-on tuning and coaching. The database covers many mainstream manufactures and a broad selection of shafts, yet some rare or highly custom models may be missing; the app allows manual entry for these cases. Regular database updates improve coverage over time and keep specifications closer to current market offerings.
User experience and replay value
Because tuning is an iterative process, Arrows is intended to be used repeatedly across practice sessions and competitions. The ability to compare shafts, save multiple setups and review your tuning notes increases replay value and makes it easier to replicate successful configurations. Whether you are testing a new shaft, refining point weight, or building a consistent setup across multiple bows, Arrows offers a focused, practical toolset to support steady improvement.
