As smartphones have gotten better and more powerful, this has naturally had a knock-on effect with regards to battery life. The designers of the high-end handsets have had to think long and hard about how to keep the increasingly demanding feature set as juiced-up as possible, and although there have been some improvements from the early days of iOS and Android, devices seldom hold up beyond a day of moderate to high use. Chip maker Qualcomm, which develops processors for a fleet of Android and Windows Phone devices, has developed an app by the name of BatteryGuru which, it claims, will extend battery performance. As well as better battery retention, the app, which is still in beta, also purports to "improve overall user experience by intelligently making changes that optimize Snapdragon device functionality."