We are no longer supporting TapaTalk as a mobile app for our sites. The TapaTalk App has many issues with speed on our server as well as security holes that leave us vulnerable to attacks and spammers.
Most likely your smart phone images are too large. New smart phones are allowing images to be bigger and bigger with each new phone release. We only allow images 1.5 Meg 1024x768 to be uploaded to minimize load on the server. My recommendation would be for you to download an app to resize your images. Personally I use Image Resizer Pro from the Apple Store. This is a free download.