Aster vs Private Cycle Journal

You know your pain is real. Aster helps you prove it. People with endometriosis wait years for a diagnosis — and those who feel dismissed by their doctors wait longest. What finally gets someone believed usually isn't a number. It's being able to say what the pain feels like, and what it stopped them doing. Aster records all three. HOW BAD, WHAT KIND, WHAT IT COST A 0–10 scale for intensity. Pain character — cramping, labour-like, burning, squeezing, stabbing, dragging, nerve-like. And how much the episode disrupted your day, from barely to couldn't get out of bed. LOG A FLARE IN SECONDS Built for your worst days: big tappable targets, one-tap symptom and location chips, no typing required. Log from the app, your Lock Screen, or a Home Screen widget. Choose which symptoms appear on your log screen so it stays fast. TRACK WHAT ACTUALLY HAPPENS TO YOU Twenty-three symptoms across thirteen pain locations. Cramps, bloating and endo belly, fatigue, brain fog, nausea, clotting, heavy bleeding, spotting, constipation and diarrhoea tracked separately, bladder urgency and leaking, pain with sex, headache, lightheadedness, mood changes and more — across pelvic, abdominal, lower back, hip, thigh, leg and bowel locations. A REPORT DOCTORS TAKE SERIOUSLY Generate a clean one-page PDF designed around what a clinician needs: average and peak pain, flare days per month, your most frequent symptoms, how pain lines up with your cycle, what it's costing you day to day, and the treatments you've tried. Timestamped, structured, and hard to wave away. SEE YOUR PATTERNS Charts show pain over time, symptom frequency, and how symptoms line up with your cycle — so you spot the patterns before your specialist asks. COMPLETELY PRIVATE No account. No cloud. No tracking. Everything stays on your device, protected by Face ID if you choose. We can't see your data — we built it that way on purpose. FREE VS PREMIUM Logging, cycle tracking, reminders, basic trends and the basic doctor report are free — forever. Premium ($3.99/month or $29.99/year, 1-month free trial) adds cycle-day and phase analysis, custom report ranges, medication effectiveness insights, appointment reminders and unlimited history export. Aster is a symptom record, not medical advice, and it doesn't diagnose anything — only a clinician can do that. Your pain deserves to be on the record, and taken seriously. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Cycle Tracker is a period and symptom tracker built around one rule: your data never leaves your phone. There are no accounts to create, no servers to sync with, and no analytics or ad SDKs watching what you log. Everything from period dates, symptoms, notes, and predictions are all encrypted on your device and stays there unless you personally choose to export a backup. WHAT YOU CAN TRACK • Period start/end dates • Flow intensity, mood, cramps, bloating, digestive symptoms, sleep, stress, and more • Your own custom symptoms • Free-text notes, searchable later so you can find "did I feel this way last month?" in seconds • A one-tap "log today, nothing notable" shortcut for days you don't want to fill out a full form ON-DEVICE PREDICTIONS • Cycle length and ovulation window estimates, calculated entirely on your phone • Seasonal adjustment once you have enough history • Symptom timing and co-occurrence insights ("you tend to get headaches 2 days before your period") • Predictions ranges, with a confidence indicator that improves as you log more • A plain-language screen explaining exactly how every prediction is calculated PRIVACY AND SECURITY, BY DEFAULT • Local database encrypted at rest (SQLCipher/AES-256) • Stack any combination of biometric unlock, PIN, password, and authenticator-app (TOTP) codes, and choose how many of them are required to unlock • Rate limiting with escalating delays on failed attempts • Optional auto-wipe after too many failed attempts • Optional decoy mode • Screenshot and screen-recording blocking • Jailbreak/root and app-tampering detection on launch • A neutral app name and icon by default YOUR DATA, YOUR CALL • Manual, encrypted export whenever you want a backup • Import to restore on a new device • Configurable reminders to back up periodically, since nothing is ever backed up automatically Built for anyone who wants real cycle and symptom insights without handing their health data to a company. No accounts. No cloud. No tracking beyond the tracking you're actually here for.