Martial Body — Open Source Fitness App

Martial Body is a free and open-source Android app that guides a complete beginner through a structured 24-week training programme designed to get them physically ready to walk into their first MMA class. This is not a generic fitness app. There is one fixed programme, one path, and one goal. The entire programme lives on-device in a local SQLite database. No internet connection is required after installation. No telemetry, no analytics, no ads. Programme Structure The 24-week plan is split into four progressive phases: • Phase 1 — Foundation (Weeks 1–6): Build base fitness with mobility work, steady-state cardio, and fundamental strength exercises at 60–70% intensity. • Phase 2 — Engine Build (Weeks 7–12): Introduce interval training and increase intensity to 75–80%. Conditioning blocks begin. • Phase 3 — Full Combat (Weeks 13–20): Peak intensity at 85–90% with all-out sprint intervals, finishing circuits, and combat-specific conditioning. • Phase 4 — MMA Transition (Weeks 21–24): Progressive volume taper with shadowboxing integration. 4 training days per week as you prepare to enter the gym. Deload weeks (4, 10, 16, 20) automatically reduce volume by 40–50% while maintaining intensity. Features • Guided active sessions — step-by-step walkthrough of every exercise, set, rep, and rest period • Built-in interval timer for conditioning blocks and sprint protocols • Automatic deload week detection and volume adjustment • Left-shoulder safety protocol with contextual warnings • Progress tracking — session history, weekly completion, phase progress, streak • Visual analytics and progress charts • Profile with health metrics (BMI, BMR, ideal weight estimates) • Phase-specific meal plan references • CSV workout export via share sheet • Dark theme throughout Privacy • Zero network calls — fully offline after install • No accounts, no cloud sync • No analytics or tracking of any kind • No ads, no in-app purchases • All data stored locally in on-device SQLite Requirements • Android 12 (API 31) or newer Source code: https://github.com/BloodBlinker/martial-body License: GPL-3.0-or-later