Gun Log and Gun Log SPC were recently updated.
Also, they are on sale for the Memorial Day weekend.
For those that don't know, these apps are iOS apps for iPad and iPhone. They are meant to be range logs first and you can record almost every detail of a firing set.
Also it stores ammunition and tracks usage. You can enter information about off the shelf ammo or details about your hand loads such as bullet info, powder info, primer info, etc.
You can store when you cleaned your weapon last or log failures and malfunctions so you can note which ammo or accessories are associated to failures.
Check it out while it is on sale!