Notes from the beta.

Release notes and updates, newest first.

  1. The Sondex public beta, for meteorologists After 20 TestFlight builds, Sondex is ready for working forecasters to test: BUFKIT soundings for GFS, NAM, NAM 4 km, HRRR and RAP at 1,078 stations, on iPhone and iPad.
  2. Build 20: Home, Stations and the charts rebuilt Home is rebuilt around the stations you monitor, every chart shares one scrubber and layers form, Open in Sondex works on iPhone and iPad, and wind speeds and 0–6 km shear are fixed.
  3. Build 19: a run picker and a new Add Station Charts opens on a run picker with a recency window, Add Station is rebuilt and saves without crashing, and the chart chrome follows your accent color.
  4. Build 18: the forecast read, and no more subscription A forecast read on the station screen, written on device by Apple's language model where it's available. Every feature lock is gone, and an optional Supporter Pack replaces the subscription.
  5. Builds 16 and 17: an SPC briefing on Home Home opens with a one-line briefing from the SPC Day 1 outlook and your newest runs, station maps get NEXRAD reflectivity, and auto-fetch gets a schedule.
  6. Build 15: a new Home and Stations The app shell is redesigned around Home, Stations, Charts and Search, with a bundled catalog of 1,081 stations. The Mac build now needs macOS 26.
  7. Build 14: a rebuilt run list with Quick Look Runs are grouped by station with a count of new ones, Quick Look sums up a run without opening it, and the Library gets clearer import actions.
  8. Build 13: the full parameter set and a new chart screen Sondex computes its own thermodynamic, kinematic and composite parameters, the chart goes full screen with a readout strip and scrubber, and SRH is fixed.
  9. Builds 11 and 12: Sondex on Mac The first Mac builds: a native macOS app with a sidebar, an Analysis view, a chart inspector and keyboard shortcuts.
  10. Build 10: one data URL for a custom station A custom station can take a single URL for every model, and error messages stay up long enough to read.
  11. Build 9: seven new charts and iCloud sync Stability indices, CAPE–shear, precipitation type, accumulation, Bourgouin energy, mixing height and ensemble plumes. Data moves to the IEM API, and Sondex now needs iOS 26.
  12. Build 8: the TestFlight link goes public Anyone with the link can now test Sondex on iPhone and iPad. This build adds custom stations, ten chart styles and a new onboarding.
  13. Build 7: Home, model comparison and new chart controls The library becomes a Home dashboard with model comparison, the chart controls and timeline are redesigned, and a Pro subscription goes in for testing.
  14. Build 6: dark mode fix Charts and lists stop drawing white panels under system dark mode, and runs you haven't opened yet are marked.
  15. Build 5: .buz archives and raw BUFKIT text Opens .buz BUFKIT archives, shows a run's raw BUFKIT text, and spaces background fetches at least an hour apart.
  16. Build 4: archived runs and background fetch Download past model runs for a station by date, a rebuilt background fetch, and in-app notifications for its results.
  17. Build 3: parcel trace and background crash fixes Corrects the moist-adiabatic step behind the Skew-T's parcel trace and moist adiabats, and fixes a crash on background refresh.
  18. Builds 1 and 2: the private beta Sondex goes out on TestFlight to a small group, with BUFKIT import, a station map, five charts and 14 sounding parameters.