Flowx: Weather Map Forecast

Review by eFreeware

Most weather apps give you one forecast and expect you to trust it. That works until the forecast matters more than usual, and you start wondering whether the rain arrives at noon or at four, or whether the wind will drop before you head out. Seeing several models side by side is the usual way forecasters handle that uncertainty, and it is the idea behind Flowx.

Flowx is developed by Flowx Weather App and has been on Google Play since December 2012, with more than 500,000 installs and a 4.3 average from 7,681 ratings. It is free to download, carries no ads, and offers in-app purchases for a subscription tier called Gold.

The pitch is straightforward: rather than a single forecast, the app puts multiple forecast models, radar-style layers and astronomy data onto one screen, controlled by swiping through time. The developer says the app does no tracking and asks for minimal permissions, and it is built around comparing data sources rather than just reading one number.

Comparing models, not just reading one

The central feature is the map. You swipe with a finger to move the forecast animation forward and back in time, and you can stack several data layers on top of each other while switching between models. That combination is what separates it from a standard forecast app: instead of a single predicted temperature or rain chance, you see how different sources describe the same hours.

That matters most when you are planning something the weather can spoil. A sailor watching wind fields, a cyclist checking whether a headwind builds through the afternoon, or a photographer waiting for a break in cloud cover all benefit from seeing where two models disagree. The app is also presented as useful for aviation, fishing, surfing, hiking and storm tracking, and for anyone simply interested in how the weather is shaping up.

The free tier covers a lot of ground. It includes the NOAA GFS and wave models, the Canadian GDPS and its wave counterpart, the ECMWF HRES model at 25 km, the NOAA RTOFS ocean model, CAMS air quality and UV index data, and NOAA smoke data for the continental US. Storm and hurricane tracks from NOAA and the Canadian weather service are included, along with sunrise, sunset, moonrise and moonset times.

Reading a week at a glance

The map is only half of the app. Graphs present the week's forecast data in a compact form, and a compare function lets you look at every available data source at once rather than one at a time. For anyone who wants to know whether a cold front arrives Thursday or Friday, a graph showing the spread across models is often more informative than a single animated map.

A home screen widget rounds this out. You choose which graphs appear and which location they cover, so a glance at the phone tells you what you need without opening anything. That is a small thing, but it is the difference between checking the forecast and having it in front of you.

The Gold subscription expands the model list considerably. It adds global models such as DWD ICON, ECMWF AIFS and UKMO at 10 km, plus a long list of regional high-resolution models: UKMO at 2 km for the UK and Ireland, NOAA NAM and HRRR for the continental US, the Canadian RDPS and HRDPS, several European services including ICON-EU, ICON-D2, ARPEGE and AROME, KNMI HARMONIE, RMI Alaro, and SMN WRF for parts of South America. Expedition Marine data is included as well, along with European air quality models.

Gold also extends the forecast to 16 days with 3 days of history, adds radar reflectivity for the US from NOAA's NAM and HRRR, and includes a graph editor and other customization options. The developer notes that payment is required to reach those subscription features, so the free tier is the honest starting point for judging whether the app fits how you check the weather.

What you need before installing

There is not much to set up. You install it, and the map and graphs are the main surfaces. The app supports choosing data layers, switching models and configuring the widget, so it assumes you will spend a little time deciding which sources you care about. That is configuration rather than a tutorial, and it rewards people who already know the difference between a global model and a regional one.

The app works offline, which is unusual for something this data-heavy. Combined with minimal permissions, that makes it plausible for places where a signal is not guaranteed.

The most recent release, version 4.648 from late September 2026, brought faster map loading, with the developer saying the map fills in about twice as fast, and a setting to turn that off under Improved Downloads in Advanced Settings. Flowx suits people who want to compare forecast models on one map, and the developer keeps the translations and the Gold screen working properly. The Gold screen now shows the current price. A note in the release warns that library updates can bring new bugs, which is a refreshingly plain way to put it.

The kind of person this suits

Flowx is for people who treat a forecast as evidence rather than an answer. If you check the weather once in the morning and accept whatever it says, the map, the model switching and the compare graphs are more machinery than you need. If you plan around wind, waves, visibility or storm tracks, the ability to see several sources disagree is the whole point.

The high-resolution regional models in the paid tier cluster around the US, Canada, the UK, Germany, France, the Netherlands, Belgium and parts of South America. Global models are available to everyone; the fine detail is regional.

It is also worth being clear about the cost structure. The app is free with no ads, and the Gold subscription is what unlocks the additional models, the longer forecast window, the US radar layer and the graph editor. The free tier carries no advertising, which is a point in its favor for anyone tired of weather apps that bury the forecast under banners.

A weather app for people who read the fine print

I would point anyone who plans outdoor work or recreation around the forecast toward Flowx, particularly if they already know which model they trust for their region. The combination of an animated multi-layer map, side-by-side model comparison, week-long graphs and a configurable widget covers the way a serious weather watcher actually checks conditions, and the absence of ads keeps the interface out of the way.

The Gold subscription is where the app becomes genuinely detailed, with the high-resolution regional models and the 16-day window. Whether that is worth paying for depends entirely on where you live and how much the difference between a 25 km global model and a 2 km regional one matters to what you do. For a casual check of tomorrow's temperature, the free tier is more than enough.

Against that, the app asks something of you. It is built for comparison, which means learning what the models are and how they differ. The reward is a forecast you can interrogate rather than merely accept, and for the audience it is built for, that trade is a good one.

What's new in version 4.648

Release 4.648 (26 Sep 2026) =========================== - Faster downloads: the map fills in about twice as fast. Turn it off under Improved Downloads in Advanced Settings. - Now in Hungarian and Romanian, and missing translations filled in. - Fixed the app sometimes opening at the wrong place. - Fixed the Gold screen getting stuck on No product found, and it now shows the current price. - Updated a few libraries. Watch out for bugs.