Twintrail

One person quits on day four. Two people keep going. Twintrail is a habit tracker for two: couples, partners, long-distance couples, best friends and siblings — turn a habit into a promise between two people. Pair with your partner, check in on the same day, and grow a shared streak together. If either of you misses a day, the shared streak resets — and you start over, together. PAIR UP · KEEP EACH OTHER GOING · PAIR UP — couple, brothers, sisters, best friends or partners: five relationship types, each with its own palette and celebration effect · SHARED STREAK — it only counts up when BOTH of you check in · GLOBAL LEADERBOARD — ranked by streak, alongside everyone else · SHARED CALENDAR — see both of your check-ins at a glance · INSTANT NUDGES — get notified the moment your partner checks in · MISSED-DAY NUDGE — your partner checked in but you haven't? A friendly local reminder arrives the next morning (auto-canceled once you check in) · ACCOUNTABILITY — no nagging, just company: build good habits together, day by day HEART HUB · KNOW YOURSELF, KNOW EACH OTHER · Couple Quiz — a two-player quiz game: 20 questions answered together, then see your chemistry score and title · Personality Test / 16-Type Test (MBTI) — understand yourself, and each other · Stress & Mood Check — a 120-question self-check for how you really feel · Zodiac Match / Zodiac Guide — a fun zodiac topic for the two of you ANY HABIT YOU WANT TO KEEP Early to bed, early to rise, working out, studying, losing weight, staying off late nights… whatever your goal, watch it turn into daily, visible progress. YOUR OWN SPACE FOR TWO · Companion pet — one each; they meet up when you are both raising one · Turn every day together into a shared daily record · 10 theme palettes + 8 theme backgrounds to set the mood · A stronger relationship, built one check-in at a time PREMIUM — ONE-TIME PURCHASE Unlock all 10 theme palettes and 8 theme backgrounds, unlimited avatar and nickname changes, no cooldown when unpairing, adopt your own companion pet (both of you get one — they meet up when you are both raising one), and the exclusive gold visual style. Buy once — it is not a subscription and nothing auto-renews (price as shown on the App Store). PRIVACY No ads, no data selling. Your check-in details stay on your device; only the essentials sync. You can delete your account at any time from Profile → Account Safety; all data is permanently removed after 7 days.