How does it work?
Research shows that calorie-counting and assessing portion sizes aren't always successful in maintaining weight loss as people often miscalculate their intake by up to 40 per cent. But the camera never lies. This free app works by simply taking a picture of each item of food or drink you consume then sending it directly to your account on the integrated Activ8rlives website. The pictures are automatically displayed in your online food diary, where you can see everything you've eaten over the course of a week, categorised clearly by 'good choice' and 'bad choice'.

Find out more: www.activ8rlives.com

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How does it work?
Working alongside a wireless activity tracker that automatically syncs to a personal web profile, the Fitbit app allows you to not only monitor your food intake, but also to keep tabs on your workouts and weight. A few sample functions? The Food Goal lets you set a calorie intake plan catered to your body shape, target weight and lifestyle. Meanwhile, the app's calorie zone will automatically adjust itself, based on how active you are throughout the day.

Find out more: www.fitbit.com/uk

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How does it work?
If you're determined to launch - and stick at - a new fitness regime in 2013, this free app from the Register of Exercise Professionals will provide all the support and motivation you need. With more than 29,000 fitness instructors from across the UK listed on the register, it helps you find exercise classes and personal trainers in your area. You can also chat to a fitness expert between sessions - and track your progress.

Find out more: https://itunes.apple.com

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How does it work?
Pregnancy, childbirth and the menopause can all weaken the pelvic floor - leading to problems such as incontinence and reduced sexual arousal. The solution lies in doing your pelvic floor exercises daily - but 58 per cent of women admit we rarely remember to do them, according to research. This fabulous free app guides you through exactly when and how to exercise 'down there' without anyone noticing. Features include easy-to-follow video classes, frequently asked questions and a simple progress-checker.

Find out more: www.lightsbytena.co.uk

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How does it work?
Designed in partnership with a team of top dermatologists, the SkinVision app allows you to detect early skin conditions by monitoring moles on your body and tracking your UV exposure on a daily basis. You simply take a picture of your skin and hit the analysis button - then you'll receive your personalised skin health profile in seconds. The app stores your skin pictures and analysis, so you can chart any potential problems - as well as learn more about your UV exposure and skin type. The cost? £2.99.

Find out more: www.skinvision.com

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How does it work?
Stuck indoors at the gym or at home on your exercise bike? This clever app - which works particularly well on tablets - is designed to enhance your indoor workout by allowing you to run, cycle or row routes from around the world. How so? Well, you view an outdoor route - such as the Seine in Paris or a Tour de France climb - while you exercise, and measure your own progress on the accompanying map. Now, that beats staring at the wall, doesn't it? Price £7.99 per month/£49.99 per year.

Find out more: www.kinomap.com

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How does it work?
If you suffer from back pain, this free app from BackCare - the charity for healthy backs - could help put you on the road to recovery. It includes 22 videos showing simple exercises you can do to help take care of your back, lots of useful information on back health, plus a pain diary feature. The information can also be forwarded to a back pain practitioner to help with diagnosis and treatment.

Find out more: www.backcare.org.uk

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How does it work?
Need a little more encouragement to cut down on the booze? This very sobering app - launched to coincide with Alcohol Concern's Dry January campaign - could give you all the impetus you need. It works by focusing on the damage your alcohol intake does to your looks. You upload a photograph of yourself and type in your drinking habits - then the app shows you exactly how you could look in 10 years' time if you continue to drink at your current rate. Be warned: it's probably not pleasant viewing.

Find out more: www.dryjanuary.org.uk

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How does it work?
One in eight women in the UK will develop breast cancer in their lifetime - but early detection and treatment means chances of survival are greatly improved. So this free app from Breakthrough Breast Cancer could quite literally save your life. With the help of a video, slideshow and handy reminder service, it shows you exactly how and when to check your breasts for any lumps or abnormalities. You can also get information on how your lifestyle could affect your risk of breast cancer.

Find out more: www.ibreastcheck.com

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How does it work?
This app from fitness guru Lucy Wyndham-Read is, as you've doubtless already gathered from its name, just like having your own personal trainer. You choose which areas of the body you want to work on, then receive a 28-day workout and eating plan, plus motivational tips and ideas. You can track your progress by monitoring your BMI, weight and calorie intake. Price £1.49. January also sees Lucy launch her Get Slim & Toned DVD and app - so look out for them, too.

Find out more: www.lwrfitness.com

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