Video Delay Instant Replay vs Arrow Optimizer

Hands-free video feedback for coaching & self-analysis. Sports Training Made Simple! #1 Sports App on iPad * Pro-grade features - Trusted by major league teams * Instant feedback - No stopping to review videos * All sports - Baseball, volleyball, gymnastics, golf, swimming * External camera support (GoPro Hero 10+ / UVC USB-C / IP / RTSP / NDI) * Privacy first - No login required * Try free - No account, no card required JASON KANZLER, Farm Director with the Chicago Cubs: "Video Delay Instant Replay has been one of the most consistently valuable tools we’ve used. I first introduced it in Houston, where it was quickly embraced across hitting, defense, baserunning, catching, and other training domains. Since joining the Cubs, we've brought it into our work again, and it continues to be a simple and effective way to deliver immediate visual feedback—a cornerstone of quality skill development. I'm grateful for tools like this that make coaching better and athletes more empowered. I fully recommend it to anyone looking to enhance learning in a training environment." Transform any iPhone or iPad into a sports analysis tool. Get instant video feedback without stopping your training - see your technique seconds after you perform it. Ideal For: * YOUTH SPORTS COACHING / PLAYER DEVELOPMENT: Great for coaches who work with athletes needing visual feedback to understand proper form. * PHYSICAL EDUCATION CLASSES: Excellent for students to conduct self-assessments. * INDIVIDUAL SKILL DEVELOPMENT: Perfect for athletes training alone who want to analyze their technique and make faster progress. * SPORTS REHABILITATION: Useful for physical therapists and trainers assisting athletes recovering from injuries and working on rebuilding proper movement patterns. * PERFORMERS: Refine acting, dancing, or presentation skills. How it works - 5 Simple Steps - Set 5 seconds delay time (for video buffering) - Perform your action (swing, throw, kick, etc.) - 5 seconds later watch your performance played back on the screen - Immediately adjust your form based on what you saw - Repeat the cycle for continuous improvement Replay in slow-motion for frame-by-frame analysis * DELAY MODE Continuous delayed video stream Up to 20 minutes buffer at 60fps 2K video quality Split Screen / Versus Mode Recording Quick Save Dynamic Buffer Replay View \\ Perfect for practice drills, plays analysis, or broadcasting. * SLOW-MO MODE Automatic slow-motion replay Visual countdown timer \\ Perfect for in-depth technique analysis * REPLAY VIEW Frame-by-frame analysis Slow-motion playback Analysis tools Annotations & Sharing Trim & Export * REMOTE CONTROL Stream between Apple devices - use one as a camera and the other as a remote controller Connect external cameras: - UVC-compliant USB-C camera with iPad - IP / RTSP / NDI - GoPro AirPlay to the TV screen * ANALYSIS TOOLS On-screen drawing Angle measurement Stopwatch Motion detection grid Horizontal flip for mirror view Rotation Frame-by-frame analysis Compare Technical Specs: Resolutions: 480p, 720p, 1080p, plus custom options Compatibility: iPhone, iPad, GoPro Hero 10+, DJI Action 3 and newer Storage: RAM-only Buffer: Up to 20 minutes @ 60fps *Buffer depends on device memory and video quality.  Disable audio capture to keep music or podcasts playing. Privacy & Security: No registration required No cloud uploads - videos stay on your device Auto-clear buffer when app closes GDPR compliant Support: videodelay.app Manual: videodelay.app/user-guide Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ *GoPro® compatibility requires Hero 10 or higher with the latest firmware. Disclaimer: This product is not affiliated with, endorsed by, or in any way associated with GoPro Inc. or its products and services. GoPro, HERO, and their respective logos are trademarks or registered trademarks of GoPro, Inc.

Arrow Optimizer turns your practice into data. Log every end, and the app tells you which arrows are actually costing you points, how your sight really moves, and where your equipment needs tuning — no spreadsheets, no guesswork. ARROW OPTIMIZATION Record each arrow's impact by tapping a target photo or entering shots digitally. Every session tracks real vs. predicted score, group size (σx/σy), and World Archery line-cutter scoring that accounts for your exact shaft diameter. Pro tools go further: Quiver Dispersion Tuning shows which named arrows are shooting loose, Arrow Ballistics Data breaks down each shaft's own bias, and the Combination Analyzer tests every possible subset of your quiver to find your tightest, highest-scoring group. CROSS-SESSION POOLING A single session rarely has enough arrows per shaft to trust the numbers. Pool the same named arrow's shots across every session you've logged for a far larger sample, or run an A/B comparison to see whether a new rest or shaft change actually helped — or was just noise. SIGHT CALIBRATION Find your sight's real mm-per-click ratio by shooting a base group, dialing in a known adjustment, and shooting an adjusted group. Every calibration — and every regular practice end where you log a click change — sharpens one shared, ever-improving ratio per distance. A built-in virtual target shows the suggested correction visually. SIGHT MARKS & PREDICTION Save your elevation and windage settings at each distance you shoot, then let the predictor interpolate a starting sight mark for any distance you haven't logged yet. PLUNGER TUNING Sweep plunger tension in steps around your base setting, log a group at each one, and see which tension gives the tightest, best-centered result. EQUIPMENT SETS Save named bow/arrow configurations — arrow type, limb, riser, bow weight, plunger, brace height, tiller, arrow diameter, sight hardware — and tag every session, sight mark, and calibration with the exact rig you shot. Switch between an indoor and outdoor setup, or two different bows, without losing track of which sight settings belong to which. PROGRESS Watch your practice volume, group tightness, and round scores trend over time, across every distance you shoot. YOUR DATA, YOUR CONTROL Back up every session, calibration, target photo, and equipment set to iCloud Drive or your device, and restore it anytime. Available in English, German, Ukrainian, Spanish, Korean, Turkish, Portuguese, Russian, and French. Free to log sessions, calibrate your sight, and track sight marks. Unlock Pro for the full optimization engine: Quiver Dispersion Tuning, Arrow Ballistics Data, the Combination Analyzer, and cross-session A/B comparison — the tools that find the fraction of a millimeter separating placings at competitive levels. Download Arrow Optimizer and start shooting your best arrows today.