Retro for Instagram

For all its popularity and new features, Instagram still lacks a native iPad app. While some users may not mind using a blown-up version of the iPhone app, Retro’s Instagram viewer has been a great platform that works just as well as the native app. This week, Retro upgraded to version 2.0, and with it came a new user interface, as well as faster and more responsive design. The app is free, but a $2.99 in-app purchase gets you support for multiple accounts and access to your photo’s stats.

Next – Social Music Discovery

Next’s music-discovery app emphasizes sharing your finds with your network. The app provides a stream of short videos featuring other users playing their favorite songs, and also lets you upload your own performances. Those who are more interested in discovering can browse new music by theme and popularity among Next's users. 

Notifyr

Notifyr enables users to view all of their iPhone’s push notifications on their Mac's desktop, so they can read essays, and see incoming tweets and Facebook messages, without ever unlocking their phone. The $3.99 app pairs over Bluetooth to minimize battery drain. It is compatible with the iPhone 4S and later, as well as most Macs from 2011 and later.

PumpUp

PumpUp's fitness-coaching app came out of beta with a completely new design this week. The updated app has the same customized workouts and photo-sharing capabilities, but it also includes new social and weight-tracking features, gesture-based controls and new ways to set goals.

(Content source: Mashable.com)