Before using this product for 3 years, I'm 70 yrs. old, I noticed my memory getting cloudy. At times I couldn't bring up certain words to express what I was thinking and trying to communicate. Dates, words, passwords, names of close friends would allude me. Directions would be hard to follow through at times. After a few weeks taking the product, I noticed a subtle improvement in the areas I was struggling with. Within a very short time after that I was experiencing a 90% restoration in my troubled areas of recall. It's been a great find for me. These People (AB) are good on backing their products, which is also a great find. I don't have a Smart Phone, but hope this will express my appreciation for Advanced Memory Formula. Thank's Cliff K