{"package_name":"com.openjump.app","name":"OpenJump","summary":"Analyze jumps and exercise velocity from video, offline","category":"Sports & Health","icon_url":"/api/icon/com.openjump.app","latest_version_code":7,"latest_version_name":"1.0","apk_url":"/api/apk/com.openjump.app","apk_size":12865913,"apk_sha256":"88b52260f4e7bbbaf1846c284fa562cddc8dc259e2a882d87de41fcca66b8bf8","source_kind":"fdroid-repo","repo_slug":"fdroid-main","last_updated":1792724419,"release_timestamp":1792694692,"description":"OpenJump measures athletic jumps from recorded or imported video. Select takeoff and landing frame by frame; calculations use the video's real presentation timestamps rather than its nominal frame rate.\n\n• Six protocols: countermovement jump (CMJ), squat jump (SJ), Abalakov, unilateral jump, drop jump and standing horizontal jump.\n• Jump height, flight time, takeoff velocity and protocol-specific metrics; calibrated horizontal distance.\n• Athlete profiles, teams, local history, progress and comparisons.\n• Experimental video Encoder: scale calibration, visual tracking, repetition analysis, velocity and trajectory charts, and trajectory-video export.\n• Manual backups and user-initiated JSON/CSV exports.\n• Configurable units, light/dark appearance and eight interface languages.\n\nAnalysis and saved measurements stay on your device. No accounts, ads, automatic analytics or Internet permission. Sharing, exports, backups and support email require your action; destination applications may transfer those copies. Manual backup JSON is not encrypted.\n\nResults depend on video quality, viewpoint, calibration and event selection. Encoder is experimental and has not been validated against a physical encoder. OpenJump is not a medical or clinically validated device. Save an analysis before leaving it: unsaved work does not survive process death.\n","categories":["Sports & Health"]}