The Most Useful Free App for Drone Users

The Most Useful Free App for Drone Users

A few weeks ago I reviewed the PolarPro filters for the DJI Spark and loved them. But to make full use of my drone and the adequate ND filter, PolarPro has created an app that I’m sure you’ll appreciate too. It’s available for both Android and iOS, and it’ll help you make sure you can fly your drone in the best conditions possible. Here are my thoughts about it and why you should download it too.

What Is the App Designed For?

As you may probably know by now, a drone cannot be flown in any condition. Different things are needed to make sure everyone is safe, including your precious device. The PolarPro app will help you with that.

When opening the app, you’ll find a minimalist design with access to all the features. The first one is the filter guide. It’s meant to help you choose the correct filters according to your drone settings. For example, if you have installed an ND8 to shoot at 30 fps with a shutter of 1/60 s, when you choose a different fps and shutter, it will let you know what you must install to keep the same exposure. While not incredibly complicated to calculate without an app, it’s quite handy when you are under pressure and don’t want to miss that perfect shot before the light goes away. The filter guide can be set up according to the gear you own, including filters and drones. This way, it will tell you to use only things that you own.

Below the guide, you’ll find different icons: the first one is a countdown to the sunset, the second one the current temperature, the third is the KP index, and finally the wind speed. All of these are for the current location, but you can add up to five others. The places you setup will then be found when pressing each icon and you’ll be able to swipe through them. There are tons of apps for each of these features, but only few that combine them all in a simple and clean interface. With the PolarPro I know when I can fly or not, even if I don’t know a thing about weather forecast, wind speed, or the details about the KP index.


The PolarPro app is entirely free and available for both iOS and Android. It may not be the most complete solution out there or the most detailed one, but for most drone users it will be more than enough. Given that it doesn’t cost anything, you won’t risk anything by trying it out.

What I Like

  • Free.
  • Simple and clean interface.
  • All the information I need to know before flying a drone is accessible in the blink of an eye.

What Could Be Improved

  • I wish we could cycle through the different locations right from the home page without having to access each tool individually.


The PolarPro app is a must-have for any drone enthusiast. It’s free, easy to use, and quite useful if you don’t have any other solution to know the weather, sunset, wind speed, and KP index. If you use ND filters, it will also be quite handy to have the guide telling you which one to use depending on the exposure changes that you make. Give it a try and see if it is as useful for you as it is for me.

Quentin Decaillet's picture

Quentin Décaillet is a photographer and retoucher based in Switzerland specializing in portrait and wedding photography.

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Great suggestion, thanks. I wasn't aware this app existed.

The KP index lets you know the likelyhood of seeing an aurora. For instance based on the map in the following link if the KP is 7 you have a good chance to see the aurora in Seattle, Chicago, Detroit and Boston. The colored lines in the map in the link are centered on the geomagnetic north pole not the geographic north pole and have nothing to do with latitude.

It may also affect the GPS quality. Not everyone seems to agree with it, but it's something to keep in mind when flying your drone if you see that it doesn't behave like it should.

Looks like a great app, that's for the write up.

Looks like a great app, however the android version just has the filter guide 🙁

Great suggestion!

The app has been discontinued. Anyone know a reliable source for the APK (Android) download? Thanks... (5 minutes later: ) - installed successfully on my Samsung S8+ running Android 9.