Health & Wellness
EnvelopeOS
Stop before you crash. Daily energy log, post-exertional malaise watch, heart rate ceiling, activity category tracking.
- Single offline HTML file
- No subscription, no account
- Laptop, iPhone & Android
- Your data stays on your device
WHAT YOU GET
- Daily energy 0-10
- PEM 48-hour watch
- Heart rate ceiling pacing
- Activity category log
- Recovery rest tracker
- 12-week trend chart
DELIVERY
- EnvelopeOS - Instructions.pdf
- index_EnvelopeOS.html
WHO IT IS FOR
- ME/CFS, Long COVID
- Dysautonomia, POTS
- Post-viral fatigue
- Anyone with PEM
PRIVACY
All data stays on your device. No server, no account, no sync.
EnvelopeOS One-time purchase · instant download · yours forever
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