Giv - Snapchat & Instagram giveaways made easy
Tagsdock - Tag Instagram photos instantly from your iOS keyboard.
QuickReply.ai - Automate Chats on Website, WhatsApp & FB Messenger
Shopping on Instagram - The new way to shop, from your feed
Retweet Pick - Retweet Pick is a random name generator for Twitter giveaways via generating a winning name from the list.
Friski - Search your Instagram posts