I'm a trader and I wrote a book about the mistakes I kept repeating. Knowing them didn't stop me, so I built an Android app, a trading journal that tries to catch those mistakes while they happen. - every trade in R, tagged with the habit behind it (revenge, FOMO, moved SL, oversized...), plus a "what your habits cost" view - a STOP screen with a countdown after a losing streak or your daily limit in R - warnings when you enter less than 15 min after a loss, size up 1.5x after a loss, or stack positions in the same direction - screenshot import of positions (full auto-fill for MEXC and Bitget in English, Binance, Bybit and OKX in beta, tap-to-assign for other exchanges); the text is read on the phone - your playbook: write your setup rules, tick the ones you really followed, see your R when you kept them vs broke them - calendar of daily results in R and mood before the session - free for now, no account, no ads, data stays on the phone, CSV export. Android only. Not financial advice and no signals, it's a journal. Feedback welcome, especially on what's confusing. https://play.google.com/store/apps/details?id=com.oldjournal.app&referrer=utm_source%3Dreddit%26utm_medium%3Dsocial%26utm_campaign%3Dpost_b   submitted by   /u/OwenLDane [link]   [comments]