GEM: Dual Momentum Tracker

GEM Calculator is a free investment signal app that implements the Global Equity Momentum (GEM) strategy — a proven dual-momentum approach developed by Gary Antonacci to help investors decide between US stocks, international stocks, and safe assets like Treasury bills. Stop guessing. Get a clear, data-driven monthly signal telling you exactly what to hold. HOW IT WORKS The GEM strategy uses two simple rules every month: 1. Safety Check - Is the US stock market trending up or down? If down, move to safe assets. 2. Pick the Winner - If markets are trending up, compare US vs international stocks and hold whichever has stronger 12-month momentum. That's it. One decision per month. No day trading, no complex analysis. MONTHLY INVESTMENT SIGNAL Open the app and instantly see this month's signal: - LONG SPY — Hold US equities - LONG VEU — Hold international equities - CASH BIL — Move to Treasury bills (risk-off) The signal includes a buffer indicator showing how far the market is from a trend reversal, plus a countdown to the next monthly update. BACKTEST & PERFORMANCE TRACKING Don't just trust the strategy - verify it: - Full historical backtest with Dollar-Cost Averaging (DCA) simulation - Compare GEM returns vs Buy & Hold across 1, 2, 3, and 5-year periods - Maximum drawdown analysis for both strategies - Month-by-month detailed log of every signal and portfolio change - Interactive performance charts for all three asset classes CUSTOMIZABLE ETF SELECTION Tailor the strategy to your broker and region: • Choose from 30+ ETFs for each asset slot • US Equities: SPY, VOO, IVV, QQQ, and more • International Equities: VEU, VXUS, EFA, EIMI.L, AMUN.PA • Safe Assets: BIL, SHV, SGOV • Non-US listed ETFs supported for European and global investors SMART NOTIFICATIONS Never miss a signal change. Enable monthly reminders on the 1st of each month so you always know when to check your portfolio allocation. GEM PRO Upgrade to Pro for the full experience: • Monthly signal alerts pushed to your device • Extended backtest history up to 5 years • Custom ETF watchlist • Priority updates and new features WHO IS THIS FOR? • Passive investors who want a systematic, rules-based approach • Index fund investors looking to reduce drawdowns • Momentum strategy enthusiasts • Anyone tired of emotional investing decisions GEM Calculator is an educational tool. Past performance does not guarantee future results. Always do your own research before making investment decisions. You may purchase an auto-renewing subscription through an In-App Purchase. • Auto-renewable subscription • Weekly ($3.99), 3 months ($27.99) and 1 year ($79.99) durations • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase • Privacy policy and terms of use: Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ GEM Calculator Terms of Use: https://flymate.io/terms_of_use.html GEM Calculator Privacy Policy: http://flymate.io/privacy_policy.html