写真加工のアプリを使ってますって英語でなんて言うの？

"I have edited the photo." This explains that the dog is not really that white but that you edited the photo to make it look that way. "I used a photo editing app/application." "App" is short for "application. This explains to the person that you used a photo editing app so you could change the way the photo looks.

Photoshop was and is one of the market leading products in photo editing and the verb to photoshop something is a standard and popular verb meaning to alter an image difitally using Photoshop image-editing software. However, the verb is also frequently used when referring an any brand of photo editing software. "The pictures have obviously been photoshopped."

"I edited the picture with a photo editing app. " This is explaining to the listener what you did and what you used to do it.

To express that one is making use of a photo editor to edit the said person pictures one might make use of any of the following vocabularies. edit: to change something. modify: To make partial or minor changes to something. enhance: To further increase the quality or value of something. transform: To change something. refashion: To fashion something again in a different way. alter: To make changes to something.

Although in the first example I have just said that you are using an app to edit the picture, the following 2 examples identify the app also (as this may be of interest to the person) As in example 2, it could be good to say what you have changed in the app (the light) You might also want to say thank you for the compliment to your picture, as seen in example 3. The only possibly difficult word that I have included is 'altered'; meaning, to change or affect.

I used a photo editing app to change the hue/color of the picture. I edited the picture using an editing app. I used a photo editing app to change the lighting of the original image.

All of these sentences can be used to tell someone that you are editing your photos with a app.