Yes, it's definitely possible with "Auto Stamper" app which specially develops for adding custom stamps like Date and time, Signature and Geolocation/Geotag to photos. You can add Geo tag to images while capturing it from a smartphone camera.
This app allows you to add text formats in various style, size, colors and positions as per your image theme. So download this app from Google Play Store and enjoy #happystamping.
You can also watch this video which guide you how to add Geotag to your photo,
