Whether it is giving up drink, cigarettes or any other habits you want to kick, it's easy to make resolutions about staying healthy. What's difficult is sticking to them.
Below are ten useful apps to help you sleep better, keep fit and cope with the most depressing month of the year.
The Pact app, formerly named GymPact, pays users when they meet their fitness and diet targets and charges them when they don't. The free app tracks a user's progress, paying them between 50 cents and $5 a week. But watch out - for every activity you miss, a minimum of $5 is taken from your bank account to be distributed among other members.
The app connects to other fitness apps and gadgets such as Jawbone UP, Fitbit and MapMyFitness, allowing Pact to automatically keep track of what you're doing. The app has a 92% success rate.
The activity-tracking wristband can track real-time stats from the number of active minutes you've walked or ran. Users can access the data by touching a button on the left hand side of the screen or via an app on their Android-based smartphone or computer. The water-resistant watch is also the first-ever to include a small OLED screen, while another feature allows users to screen and keep track of calls on the move.
Fitbit Force, which has seven days of battery life, can also be integrated with other social fitness apps such as Map Muy fitness, Endomondo and Run Keeper. Users can earn achievement badges the more they work out.