Five balls. One oil pattern. Which one do you throw tonight?
Strike Zone is your digital bowling coach. Ball scanner, arsenal with 8-slot system, A–E grading for every ball on every pattern – and with Plus, your personal AI coach. All in one app.
BALL INFORMATION
Over 3,000 bowling balls with complete specs: core, cover, RG, differential, MB. Slot assignment and personal fit recommendation for your player type and arsenal. USBC status at a glance. Identify any ball by photo with the built-in scanner.
ARSENAL WITH 8-SLOT SYSTEM
Every ball is automatically assigned to one of 8 slots – from Tank (heavy oil) to Spare. Arsenal analysis with grade breakdown, lane condition spectrum, and an interactive arsenal map. Add the same ball multiple times with custom names for different layouts.
BALL RECOMMENDATIONS
Personalized suggestions based on your player type and arsenal gaps. Compare up to 6 balls at once with radar chart and specs table.
OIL PATTERN COACHING
Over 1,300 oil patterns with analysis and coaching tips. Line play, target arrows, breakpoint, and speed recommendations for fresh, carrydown, and burn. A–E grading for every ball on every pattern. Pattern logbook for personal notes.
GAME TRACKING
Frame-by-frame scoring with visual pin display. Foul tracking, ball changes, game notes. Formats: multi-bowler, Baker, Scotch Doubles, No-Tap, Match Play. Pocket hit tracking for high, flush, light, and Brooklyn.
STATISTICS
Average, high game, trends. Strike rate, spare rate, split conversion, single-pin rate. Spare heatmap, what-if analysis, breakdowns per ball, per pattern, and per location. Season statistics. Export as CSV or PDF.
TRAINING CENTER
Live Coach gives real-time tips after every frame in practice. Spare tips with the 3-6-9 system, lane adjustment suggestions, ball switch cues. Skill Tree, drills, weekly quests, and algorithmic training plans.
CHALLENGES
Challenge other bowlers – as a 1v1 match or open challenge. The opponent's score stays hidden until after you play. Create with Pro, join for free.
COMMUNITY
Find bowlers near you, compare arsenals and stats. Public profiles with deep links. Share balls, patterns, and stats as branded image cards.
BALL MANAGEMENT
Surface tracking with resurface phases. Layout editor with 4 systems: PAL, Dual Angle, VLS, 2LS. Document drilling sheets as photos. USBC flag for tournament-ineligible balls.
STRIKE ZONE PLUS – YOUR AI COACH
Optional subscription, builds on Pro. Seven AI modules:
- Weekly Coach Recap with focus for the week ahead
- Pattern Briefing for every oil pattern
- Ball Advisor in four modes (worth it, next ball, dormant balls, for your player type)
- Training Focus over 30 days
- Season Review with award cards
- Coach Chat for open questions
- Scorecard Scanner for the lane monitor
Plus: manage friends & lists. 7-day free trial. Requires active Pro.
FREE / PRO / PLUS
Free: Full database, full pattern library, 5 scans, 3 arsenal balls, 10 games, basic statistics.
Pro (one-time purchase): Unlimited everything. Scoring Engine, Live Coach, ball comparison, arsenal analysis, pocket tracking, spare heatmap, what-if, Training Center, create challenges, community profiles.
Plus (subscription): All AI coaching modules, friends & lists, Scorecard Scanner. Requires Pro.
Pro is a one-time purchase – no recurring fees. Plus is optional, monthly or yearly subscription, cancel anytime.
Missing a ball or pattern? Report it right in the app. The database grows with the community.
Make smarter calls on the lanes.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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