Level Mind vs Stellar Intervals

WHEN SMALL REJECTIONS FEEL CATASTROPHIC A friend doesn't text back. Your boss reschedules a meeting. Someone doesn't laugh at your joke. Suddenly, you're convinced they hate you, you're getting fired, you've ruined everything. The spiral feels completely real in the moment. Hours later, you realize: it was nothing. Level Mind helps you track these spirals and build evidence that your catastrophic fears are almost always wrong. WHAT YOU CAN DO Log rejection spirals when they happen Track what you feared vs what actually happened See patterns: "You've spiraled about texts 20 times. It was fine 19 times." Build evidence that catastrophic thinking lies to you WHO IT HELPS People who experience intense emotional responses to perceived rejection or criticism, including those with: Rejection Sensitive Dysphoria (RSD) - Common in ADHD/Autism Generalized Anxiety Disorder (GAD) - Catastrophic thinking patterns Social Anxiety - Fear of judgment and rejection Rumination and overthinking patterns Different underlying causes, but the spiral feels the same: overwhelming, convincing, and almost always wrong about the outcome. HOW IT WORKS LOG THE SPIRAL When you're panicking, quickly log: What triggered this? What are you afraid it means? How intense does it feel? TRACK REALITY Come back later to record what actually happened: Was your fear right or wrong? What really occurred? SEE THE PATTERN Over time, see proof: "100% of the time, your fear was wrong" Common triggers that make you spiral Trends showing spirals getting better YOUR PRIVACY MATTERS All data stored on your device only No cloud sync, no account required No tracking, no analytics, no ads Export or delete your data anytime Your spiral data is too personal to live anywhere but your phone. NOT THERAPY This app is a tool, not treatment. It complements therapy but doesn't replace it. If you're struggling, please talk to a mental health professional. Crisis Resources: 988 Suicide & Crisis Lifeline Crisis Text Line: Text HOME to 741741 WHY I BUILT THIS I built Level Mind because I needed it. I have GADS (Generalized Anxiety-Depression Syndrome), and I spiral constantly. After years of therapy, I realized: I needed proof that my fears were lying to me. So I built this app to track spirals and show me the pattern. I experience this through anxiety, not ADHD, but the spiral is the same. And maybe it'll help you too. Built by someone who spirals too. You're not alone in this.

Most Norwegian 4x4 timers count the clock. Stellar Intervals counts what matters: the time your heart is truly in the zone — and how fast it recovers afterward. THE PROBLEM WITH CLOCK-BASED 4x4 The Norwegian 4x4 protocol calls for four 4-minute intervals above ~85% of your max heart rate. But it takes time to climb into that zone — often 60 to 90 seconds. A standard timer counts that ramp-up as "work," so you get an uneven, watered-down dose every session. Two workouts that look identical on the clock can be completely different efforts. TRUE TIME IN ZONE Stellar Intervals fixes this with a heart-rate-gated timer. The interval clock starts only when you cross your 85% threshold — and pauses the instant you drop below it. No more junk time. Every session delivers a true 16 minutes of high-intensity stimulus. Repeatable, predictable, honest. A CLEAN SIGNAL: HEART-RATE RECOVERY Here's what true time in zone unlocks. Heart-rate recovery (HRR) — how many beats per minute your heart drops in the first minute after an interval — is one of the most studied markers of cardiovascular fitness. But it's only meaningful if the effort before it was consistent. Because Stellar Intervals standardizes every interval to the same load, your HRR becomes a clean, comparable number you can trust. Track it interval to interval and week to week, and watch your fitness improve in a metric measured from your own training. THE SCIENCE The Norwegian 4x4 protocol is the gold-standard interval method for improving VO2 max — and VO2 max is one of the strongest predictors of long-term health and longevity. Stellar Intervals helps you execute the protocol precisely and follow your progress through HRR, a marker researchers have long tied to heart health and aerobic fitness. FEATURES Heart-rate-gated timer — counts only true time in zone Auto-pause when you fall below 85% HRmax Per-interval heart-rate recovery (HRR) tracking Long-term HRR and time-in-zone trends Works with Apple Watch and Bluetooth chest straps Sport-agnostic: run, bike, row, ski, or elliptical Apple Health integration Clean, distraction-free workout screen HONEST BY DESIGN Stellar Intervals does not estimate or claim to measure your VO2 max — no app can do that accurately from your wrist. What we do measure, we measure for real: your true time in zone and your heart-rate recovery. Two numbers you can trust, both improving as you train. WHO IT'S FOR Runners, cyclists, and rowers chasing VO2 max gains. Longevity-minded people who already track HRV, sleep, and biomarkers. Anyone who wants their 4x4 done with precision instead of guesswork. Requires a heart rate source (Apple Watch, Apple Airpods Pro 3 or Bluetooth HR monitor). Start your first true interval today.