Instagram vs Twitter

Instagram is almost a picture based blog . It does have captions however it is mainly pictures. The only way you can get posts to relate to each other is by having hash tags in your captions and also by tagging people that you know.

Advantages

• It can improve artistic ability as it allows you to share and edit photos you have taken.
• You can communicate with friends using direct posts and comments.
• You can increase your friends list and possibly your professional network as a photographer as it allows you to promote your work. 

Disadvantages

• Your pictures can be sold or re-used by instagram.
• If not used correctly you could give yourself a bad image.
• People can use it to spy and bully you.

On the other hand, Twitter is mainly used as a diary that you can share with friends as people use it to share what their doing and their thoughts feelings throughout the day. People can also share pictures and videos like instagram and can also tag friends and even people they don't know such as celebrities if they want to communicate with them.

Advantages

• It can be used to promote businesses as it reaches people all over the world.
• Tweets are quick and easy to create and can be shared with people across the globe.
• You can be honest about what you think and get straight to the point because you have limited characters which some people might appreciate.

Disadvantages 

• Because so many people tweet everyday day it is unlikely that many of your tweets will get noticed.
• It is not suitable for photos because it is mainly text based. If you want to pictures people tend to recommend instagram.
• Not all people can promote their businesses as they have to be approved by Twitter.