Flowx - Weather4.646 - App Store

Visualize the forecast with the unique Flowx weather map and graphs. Get superior user experience with all your data on one screen, finger swipe control, multiple data types and forecast models, and absolutely no ads, no tracking.
Use Flowx to plan around the weather, for aviation, fishing, sailing, surfing, cycling, hiking, photography, storm tracking or anyone interested in the weather.

The advantage of Flowx is the ability to easily compare models to understand the weather and what it means for you. Customize your data options and visuals to your preference.

User Experience
============

Map
Use finger swipe to control the forecast animation over time. Choose multiple data layers to display on the map, and easily switch between models.

Graphs
View the week’s weather forecast data at a glance. Choose from a selection of graphs and use the compare function to view all data sources at once.

Features
GFS, GDPS and ECMWF global forecast models, updated 4 times daily. Plus global waves, air quality and UV index models, ocean data, storm/hurricane tracks, sun/moon-rise/set and USA high-res smoke.

Offline use, no ads, no tracking, minimal permissions.

Pro Version
========

Gold Subscription includes:
. Additional global models and high-resolution data for North America, South America & Europe
. Up to 16-day forecast and 3-day history
. Radar Reflectivity for USA - NOAA NAM & HRRR
. Graph Editor and other customization options

Note: payment is required to access pro version subscription features.

Data Sources
==========

Free Data Sources:
. NOAA GFS and Waves - Global
. CMC GDPS and GDWPS Waves - Global
. ECMWF IFS 25km - Global
. NOAA HRRR Smoke Data - Continental USA
. NOAA RTOFS Ocean Model - Global
. CAMS Air Quality/UV Index - Global
. Storm/Hurricane Tracks (NOAA & CMC) - Global tropical storms
. Sunrise/set and Moonrise/set

Pro Data Sources:
. Free sources plus
. DWD ICON - Global
. ECMWF AIFS - Global
. UKMO 10km - Global
. UKMO 2km - UK, Ireland
. NOAA NAM 3km, NAM12km & HRRR - Continental USA
. NOAA RRFS - 3km Continental USA + Alaska, 2.5km Hawaii + Puerto Rico, 13km Nth America
. CMC RDPS - Canada, USA (incl. Alaska), Greenland, Iceland
. CMC HRDPS - Canada
. DWD ICON-EU - Europe
. DWD ICON-D2 - Germany
. SMN WRF 4km - Argentina, Chile, Uruguay, Paraguay
. MeteoFrance ARPEGE - Europe
. MeteoFrance AROME - France
. KNMI HARMONIE 2km - Netherlands+
. RMI Alaro - Belgium
. Expedition Marine - Various locations incl NZ
. CAMS-EU Air Quality - Europe
. SILAM Air Quality - Europe
Contact:
======

Join us at forum.flowx.io to ask questions and discuss ideas.

Follow us on social media:
Facebook: www.facebook.com/flowxapp
X: www.x.com/flowxapp
YouTube: www.youtube.com/flowxapp

Terms of Use: www.apple.com/legal/internet-services/itunes/dev/stdeula

Version History Release 4.646 (27 Sep 2026)
======================

- Major major update for the UI framework, the build tools and a stack of libraries.

- New Model in Gold Pro: DWD GWAM global waves - 25km, out to 7 days.
- Fixed the RRFS models losing their extended forecast hours. This one is on our servers, so it is already fixed for everyone.

- What's New now shows every release you missed, not just the latest.
- Travel Mode no longer moves the place when location permission is denied.
- The bar under the map says No Data when the model has none, and gauges update properly after switching model.
- Fixed a crash on every launch caused by a damaged zones list.

- Faster map updates: downloading prioritizes visible data first.
- Faster start up, and the edges of the HRRR and NAM models line up properly.
- The usual tidying and updates under the hood. 4.646 Sep 28 Release 4.643 (2 Sep 2026)
=====================

- New Model in Gold Pro: SMN WRF Argentina 4km with 10-minute rain, covering Argentina, Chile, Uruguay and Paraguay.
- Fixed the store showing Buy to Gold subscribers, and purchases that could stall.
- Better crash reports, so crashes get fixed faster.
- The usual tidying under the hood.

Release 4.641 (27 Aug 2026)
=====================

- New Models in Gold Pro: NOAA RRFS — Alaska, Hawaii, Puerto Rico, CONUS and North America.
- The bar under the map now shows the value, units, model and forecast run.
- Fixed short streamlines on RDPS.
- Fixed a crash when the map resized behind the graphs.
- Fixed a crash while loading model data.
- Fixed a crash when panning the map right out. 4.643 Sep 18 Release 4.639 (21 Aug 2026)
======================

- New streamline settings — pick a style and how much detail. Under Map Style.
- Added smoke and visibility to the gauge and graph menus.
- HRRR Smoke now extends to 48 hours.
- Added new user tips
- New tips — how to run the forecast, change the weather model and compare them.
- More fixes for the map coming up blank.
- Fixed the map going blank past the end of ICON-D2 and other local models.
- Fixed flashing on historical ICON-D2 wind gust.
- Fixed tapping the colour maps in Edit Spectrum.
- Updated a few libraries. 4.639 Sep 3 Release 4.636 (26 Aug 2026)
======================

- Wind streamlines now have shadows to make them easier to see.
- Major improvements in stability, efficiency and reduced memory usage. 4.636 Aug 27 Release 4.630 (23 Jul 2026)
=====================

- Smoother map data rendering
- HRRR now includes extended 48 hour forecasts for 0000, 0600, 1200 and 1800 runs
- Ordered data sources into better groupings
- Fixed hurricane tracks to show NOAA and CMC predictions
- Fix: graphs slowing down after switching places
- Major improvements to the graph engine
- Fix: graph transition labels
- Watch out for bugs 4.630 Aug 4 Release 4.622 (14 Jul 2026)
=====================

Major New Model - UKMO 2km resolution model:
This is one of the best models in the world.
- Region: UK + West EU.
- Five days forecast with 15 minute time resolution.
- New forecasts every hour.
- Available in Gold

Fixed RDPS fallback bug.

- Downloads are now prioritized based on distance to center.
- Updated some small libraries.
- Fixed several crashes affecting the map, weather layers, and downloads.
- Improved overall stability and reliability.

Fixed several other bugs. 4.622 Jul 15 Release 4.614 (12 June 2026)
======================

- ECMWF HRES has been discontinued. It is replaced by ECMWF IFS.
- Major update to Pro Store libraries.
- Please email me if there are any bugs.
- Re-added the translations which I accidentally deleted in the last release. 4.614 Jun 16 Release 4.608 (22 May 2026)
======================

- More efficient rendering of the map.

- Minor updates to many libraries. 4.608 May 23 - New Model: ECMWF AIFS 25km in Gold Pro. This is an AI generated forecast.
- New Model: UKMO global 10km in gold in Gold Pro.
- Added clouds and wind gust to ECMWF HRES model.
- Major changes to how the scale bar works. Numbers may change slightly.
- Major update to core and UI libraries. 4.606 Apr 29 Release 4.600 (6 Apr 2026)
======================

- Fixed HRRR precipitation blinking bug - finally!
- Fixed a bunch of tiling bugs.
- Fixed place reordering bug.
- Fixed Pro Store bug.
- Updated a couple of libraries. 4.600 Apr 7 Release 4.146 (26 Feb 2026)
=====================

RainViewer is Gone :-( The service is now discontinued.

- Fixed: marine current streamlines are now longer.

- Fixed: missing clouds in graph for Expedition Marine.

- Fixed: Long names don't wrap, they clip instead.

NOTE: RainViewer has decided to stop providing radar data in JAN 2026 so radar will stop in Flowx in JAN 2026.

See forum.flowx.io for more details. 4.146 Feb 26 Release 4.142 (5 Feb 2026)
====================

- RainViewer Radar is now gone :-( The service has been discontinued.

- NEW: Added low, mid and high cloud layers to the graph. This will default to total cloud data if cloud layers don't exist.

- If you prefer the total cloud layer, edit the graph and toggle the cloud elements.

- Improved OpenZones with automatic zones generated for storms. See side menu for OpenZones.
- Disabled radar for free users. I accidentally made it freely available.
- Major update to UI library.
- Improved loading of data and streamlines.
- Added Graph Editor option to add fixed data levels to graphs.

Bug Fixes:
- panning and timezones.
- map and graph mismatch.
- app opening to 00:00.
- daylight savings bug.
- PM2.5 air quality values in gauges.

- NOTE: RainViewer data will stop JAN 2026. See forum for more details. 4.142 Feb 5 Release 4.118 (26 Aug 2025)
=====================

# EXCITING!! We have a new KNMI HARMONIE weather models:
- the 5km weather model which extends from Europe, across the UK to Iceland, and for the Caribbean.
- the 2.8km model covers the Leeward and Wayward Islands in the Caribbean.
- the 5.5km model covers the Caribbean including the top of North America.
- also added Dew Point Temperature to all HARMONIE models.

# Other Model Updates:
- CMC GDPS now has 1 hour time steps.
- CMC GDWPS waves now extends to 10 days.
- MeteoFrance Arome now has total cloud and MSL pressure.
- MeteoFrance Arome extends to 51 hours and updates every 3 hours.
- MeteoFrance Arpege now extends to 102 hours (~4 days).

# Feature Updates:
- Offline Mode is back.
- Major update to UI and other libraries.
- Also added the ability to add air quality, wave and marine gauges.
- Travel Mode now updates your location if the GPS change is over 500m.
- Far more efficient and fast data loading.
- A little polish and fixed other minor bugs.
- Fixed High/Low calculation bug.
- Improved radar loading.
- More efficient data loading, more to come.
- Fixed blank regions at the ends of the graphs.

NOTE: RainViewer data will be discontinued JAN 2026. See forum.flowx.io for more details. 4.118 08/27/2025 Release 4.100 (27 Jun 2025)
=====================

- Major update to the UI library
- Sun/Moon paths, rise and set times. Add sun/moon data via the map menu.
- ECMWF time range is now at 6 days. Also added Dew Point.
- Added date/time, air quality, waves and marine gauge options.
- Fixed the opacity of the cloud layer to 70%.
- Ability to clear deleted places
- Added help links in Settings and Advanced Settings. 4.100 06/28/2025 Release 4.076 (20 Apr 2025)
======================

Features:
- Added reordering of the map menu via "+" button.
- Double-tap on a graph in Compare Mode to return to that data source.
- Added "Send Debug Log" to Feedback dialog.

Bugs:
- Fixed major bug where gauge and hi/low temperature did not match the graph.
- Fixed non-loading dialog showing information about data.
- Fixed the time gauge layout bug.
- Fixed ranging issues with Temperature and Dew Point on the same graph
- Added extra decimal place for pressures in inHg.
- Fixed map background colors.
- Plus heaps of other small polishes, translations, bugs fixes and minor improvements. 4.076 04/28/2025 Release 4.060 (31 Mar 2025)
======================

- Added Beaufort wind speed units.

- Added Place ordering and options in Settings > Advanced.

- Lots of bug fixes and polish. 4.060 04/01/2025 Release 4.052 (12 Feb 2025)
=====================

- Translations to a couple of dozen languages. Let me know if there are any mistakes.
- Fixed a couple of bugs.
- Updated a few libraries. 4.052 02/13/2025 Release 4.050 (2 Feb 2025)
=======================

- Travel Mode - edit place and turn it on to lock on your location
- Color picker for editing graph element colors
- Fixed overlapping graph transition labels.
- Fixed several crash bugs. 4.050 02/03/2025 Release 4.048 (17 Jan 2024)
=====================

- A major rewrite of many parts of the code.
- Super Sorry about the app occasionally hanging on launch. This release should fix this long-standing and annoying bug.
- Added the new KNMI HARMONIE 2km model which covers Europe.
- Major updates to sopport libraries.
- Major polish for more consistency.
- Added more decimal points for snow in in/hr.
- Fixed edit graph range bugs.
- Added OpenZones which provides all data for free in disaster zones.
- You can reset graphs to the defaults when editing graphs
- Added source transition labels to graphs.
- Layout changes are now saved properly.
- Plus many more minor changes.

If are any issue, please contact me via Feedback in the side menu.

This release is real exciting since it paves the way for some real cool features in the near future.

Cheers, Duane. 4.048 01/17/2025 Release 1.040 (2 June 2024)
=====================

HARMONIE 2.5km and 5km is no more. Welcome HARMONIE-AROME 2km over the Netherlands.

The old HARMONIE models have been replaced by a newer and better model.
Not only have the resolution increased but also has the update rate with a new
forecast every hour!!

This is among the best weather models over Europe. Congrats KNMI.

Also fixed a minor crashing bug. 1.040 06/02/2024 Release 1.038 (3 May 2024)
=====================

- Fixed blanks screen on first open or update.
- Fixed major crashing bug.
- Major refactoring to hopefully improve the stability of the code.
- Fixed scalebar loading bug.
- Fixed a minor crashing bug.

Apologies for the recent bugs. I'm optimistic the stability is improving even if we took a step backwards. 1.038 05/03/2024 Release 1.034 (23 Apr 2024)
=====================

Graph Editor (Pro Feature) - long press on the graph and select “Edit Graph”. See help for more Instructions. 1.034 04/24/2024 Release 1.032 (14 April 2024)
=====================

- Added ECMWF HRES 0.25 degrees.

- Updating iOS SDK to 17.4.

- Updating a bunch of libraries. 1.032 04/15/2024 Release 1.030 (30 Mar 2024)
=====================

What's New:

- Eclipse Feature for the total eclipse over North America on the 8th of April 2024. You are able to view the path, shadow and weather forecasts for the eclipse, including the low, mid and high cloud forecasts.

You can add the eclipse menu via the alert in the top bar or the edit data dialog.

- Added ECMWF HREs 0.25 degree resolution model.

- Added Swipe settings to the Settings page. You can edit the horizontal and vertical swipe speeds along with the time step size.

- Fixed the log scale numbers for CAPE. 1.030 04/01/2024 Release 1.026 (18 Feb 2024)
=====================

- Major updates to libraries. We should see improvements in performance and stability but keep an eye on performance and stability all the same :-) 1.026 02/19/2024