There are too many original apps, but the one we are testing today have a practical side also… at least for hypochondriacs, or anyone wanting to pay 3,99 € for something you can do by yourself.
We are talking of monitoring your pulse through you iPhone Mic. That´s what Heart Monitor do. Our experiences are not very good using the integrated Mic of a 3G iPhone (it depends on how easy your pulse can be found), but the results with the handsfree mic are better, and its funny to measure your pulse in such a way.
It would be perfect if a heart monitoring method could be put together with Nike Plus, but I can´t think on any comfortable way of holding the mic to your neck and carrying and iPhone or iPod Touch while running !!
In my opinion, these original apps are great for pushing the community to innovate and evolve… but the price does not make any sense.