When you're young, occasionally forgetting things is more of an inconvenience than anything. But as you get older and it happens more often, it can become disconcerting. What starts as misplacing your keys becomes an inability to recall names or even access your own memories. But we can work against the wear and tear that time causes our brain, and if you have an iOS device, these eight apps will help you improve your memory and cognitive functions. Sharpening your memory only serves to benefit you in both the short and long term, and you never know which forgotten thought or location of a long-lost item may suddenly back pop into your head.