A dropped venue Wi-Fi must never block a test. LlamaDyno is a Progressive Web App built to keep working when the network doesn't.
Install it
In Chrome/Edge use Install app (the address-bar icon) so it runs full-screen and rides out flaky networks.
How offline capture works
- Roster cached — when you open a test, the athletes, chairs, machines and ceilings are cached, so the capture screen keeps working if the network drops.
- Results queue locally — saving while offline shows "Saved offline — will sync when back online (N pending)" and resets the form for the next athlete.
- Automatic sync — when connectivity returns, queued results sync themselves ("Synced N queued results ✓") and appear on the match page.
- No duplicates — each result carries a one-time key, so a result that saved but lost its confirmation on flaky Wi-Fi is never recorded twice.
If a sync seems stuck
Coming back online — or reopening the test page — re-runs the sync. The JSON export is always available as a manual fallback.