Johnny Ixe has DataMan Next Track Data Usage In Real-Time (iTunes Link) for the iPhone and iPod Touch in the iTunes App Store for FREE (regularly $2.99) for a limited time.

Your weapon against overage. DataMan Next tells you in one glance if you’re safe from busting your data cap. Now it takes full advantage of iOS 7 to give you a better, more delightful experience.

Beautiful design. Simply gives the key statistics you need most in an incredibly clean interface. It’s so easy to track your data usage.

Smart Forecast. The advanced Forecast predicts if you’ll stay within your data cap. And tells you in brilliant colors.

Real-time tracking. Your latest statistics are retrieved directly and immediately from iOS. No more waiting for your carrier to update.

Johnny Ixe also has DataMan Pro Track Data Usage In Real-Time (iTunes Link) for the iPhone and iPod Touch in the iTunes App Store for $4.99 (regularly $9.99) or DataMan Pro for iPad for $2.99 (regularly $4.99) for a limited time.

The Pro features usage alerts in Notification Center, red percentage badge on app icon, secure and private (no VPN, no login), map where you used data, and much more.