InstaMaster is an intuitive program that provides you with a simple way to manage your Instagram account. With its help, you can check the latest posts from your Instagram friends, write comments to shared pictures and videos, and upload personal photos and videos directly from your desktop.
The company that developed Instagram apps for Android and Apple media gadgets (phones, tablets, etc.) doesn't provide you with a desktop solution for managing Instagram account. For this reason, third-party developers keep releasing this type of tools, apps that are not affiliated to the aforementioned company.
The first thing you need to do after launching this utility on your Mac is to enter your Instagram credentials. The program will save the entered information and automatically log you in every time you launch it on your computer.
The annoying aspect about using this application is that you cannot upload a single file until you make an in-app purchase. You can only follow or unfollow Instagram users, like photos, write comment to posts, and that's it.
Still, I think it's definitely worth making the aforementioned payment. According to the comments that were left by other users on the download page of the product, the app actually uploads data once the in-app purchase is made. The price is reasonable ($4.99) and definitely worth it if you're the kind of user that spends a lot of time on your Instagram account.