When it comes to cardio, some people like to run. For those people, Runtastic is a great app. Now, however, Runtastic is expanding its reach with a pair of apps designed for two other specific niches: road and mountain bikers.

Each app is designed specifically with its target audience in mind, offering metrics that each type of rider will find beneficial. Here's a look at what each respective app offers:

Road

* Live GPS tracking of critical performance metrics – calories, distance, time, speed, altitude, pace

* Ride thousands of biking routes, using Route Search (available in-app and on www.runtastic.com)

* Mapping (Google maps) – detailed live map features

* Colored traces (track cycle pace, speed, grade, elevation, heart rate)

* Current rate of climb, ratio of gained or lost altitude in meters per minute

* Cadence measurement (with additional hardware)

* Heart rate measurement (with additional hardware)

* Dashboard configuration – displays preferred biking statistics

* Automatic pause detection during your trek

* Weather data

* LIVE Tracking – real time tracking of your cycle position to share with friends

* Voice feedback of critical velo metrics, motivational messages available in numerous languages

Mountain

* Tracking of critical performance statistics from mtb session – duration, distance, altitude, calories, time

* Ride thousands of mountainbike routes, using Route Search (available in-app and on www.runtastic.com)

* Configurable maps: Google Maps and Open Cycle Map

* Offline maps: For off track treks in areas without GSM coverage

* Colored traces (track biking pace, speed, grade, elevation, heart rate)

* Current rate of climb, ratio of gained or lost altitude (downhill) in meters per minute

* Cadence measurement (with additional hardware)

* Heart rate measurement (with additional hardware)

* Dashboard configuration – displays preferred biking statistics

* Automatic pause detection during your trek using ANT+ sensors

* Weather statistics

* LIVE Tracking – track your trail in real time to share with friends

* Voice feedback of performance statistics, motivational messages available in numerous languages

* Take pictures – they'll be saved with your mtb tour overview and velo statistics

There are both free and paid ($4.99) versions of each app – hit the appropriate widget below to give 'em a shot.