A private logbook for vials, units drawn and injection sites
Private period tracker app with no account required, works offline
Stage
Not given
Not given
Founded
Not given
Not given
Based in
US
Not given
Pricing model
Free
Freemium
Pricing
Not given
Free for all core features (period logging, calendar, predictions, reminders, export, deletion). Cloud sync: US$3.99 one-time purchase for syncing across devices and transferring records to a new phone.
Key features
Track vials with strength, water added and use-by date
Log doses with units or amounts with automatic calculations
30 injection sites with rotation schedule and rest tracking
Schedule and reminders for recurring doses
Complete dose history with timestamps and cost tracking
Printable summaries and CSV exports for clinicians
Shows three lines of arithmetic for every calculation
Optional private cloud backup with Face ID or fingerprint lock
Works without account, ads or tracking
Vial math converter for dilution planning
Period and cycle logging in one tap
Next-period prediction with date range and confidence level
Cycle calendar view
Export data as JSON, CSV, or readable summary
One-tap delete all with confirmation
Works fully offline with no internet required
Optional encrypted cloud sync across devices
Ovulation window and ovulation day estimates
No ads, analytics, or third-party data sharing
What makes it different
Shows all arithmetic so you can verify every calculation yourself
Never suggests a dose or compound, only converts your numbers
Private by design with no account, ads or tracking required
Automatic rotation tracking across 30 injection sites
Integrates with clinicians through printable reports and CSV exports
No account required to use — open and start logging immediately
All data stays on your phone by default with no forced cloud sync
Handles irregular cycles by widening prediction range instead of marking you abnormal
Completely free core features with optional one-time paid sync, never a subscription
Privacy-first design with no third-party integrations or data selling
Vialmetry
Mori