Blood Donation Tracker
· v2.0.0
About
BLOOD DONATION TRACKER — a complete, private donation history, appointment and reminder tool for
your Garmin watch.
Keep the useful record on your watch without creating an account. Log a donation today or enter a
past date, choose its type, correct any entry later and see the next personal reminder. Reminder
dates are planning aids only: always follow your blood center and qualified healthcare advice.
COMPLETE ON-WATCH RECORD
- Up to 400 detailed entries plus a preserved lifetime total
- Whole blood, plasma, platelets, double red cells and other donation types
- Safe edit, delete and undo with duplicate/future-date protection
- History filters and totals by year and type, average intervals and next action
- Future appointments with date, local time and type
- Independent 14–365 day intervals for each type, or disable any interval
- Optional center name and HTTPS reference entered by you
- Transactional checksummed storage, migration and corruption recovery
REMINDERS AND WATCH SURFACES
- Temporal reminders outside the app when enabled
- Native app notification on supported watches; open-app prompt fallback on older watches
- Glance and complication on compatible devices
- Local reminder-status screen with the last attempted channel and pending queue
- Full countdown and history remain available on every supported watch
OPTIONAL PHONE FLOWS
- Create an `.ics` calendar file after explicit confirmation on your phone
- Export and restore a portable encrypted backup without an account
- Calendar details stay in the URL fragment and are processed in the browser
- Backup transfers are authenticated and encrypted before upload; the bridge stores only
ciphertext for at most 30 minutes and cannot decrypt it
- The downloaded backup is readable on your phone, so store it as sensitive personal data
PERMISSIONS
- Background: schedule enabled reminders
- Notifications: show native reminders on compatible devices
- Complication Publisher: publish the next reminder date on compatible watch faces
- Communications: open confirmed phone pages and transfer encrypted backups
The app does not request GPS, sensor, user-profile or FIT/activity permissions. It has no ads,
analytics or permanent cloud account. Your ledger, appointments, settings and statistics remain on
the watch. Optional encrypted transfer traffic exposes timing and blob size to the service, but not
the secret or readable health fields. Uninstalling or downgrading can remove local v2 data; export a
backup first if you need portability.
IMPORTANT HEALTH NOTICE
A reminder never means that you are eligible, safe or ready to donate. Eligibility and waiting
periods depend on donation type, country, medication, health and your center's current rules.
Configure only the interval supplied by your center and consult a qualified professional.
Completely free: no payments, subscriptions or paid features. If it helps, an honest Connect IQ
review helps others find it. Request another free app at:
https://smartwatch.nexooperativo.com/request/
Optional support helps maintain this free app and build new ones; it never unlocks features:
https://patreon.com/ProWatchs
What's new
Five donation types, 400-entry editable history, filters and statistics, future appointments, capability-aware background reminders, glance/complication surfaces, private calendar handoff, authenticated encrypted backup/restore, transactional migration and full EN/ES UI.