iSeeNcode is free for you to install and take a look around. If you like what you see and choose to begin using it for making your own observations, there is a small charge for observations called a Consumable.
In the app store pricing mechanism, a consumable is a resource you purchase for one-time use within an app. In a poker game, for example, a consumable would be a poker chip. In iSeeNcode, the consumable is the observation. Before you begin an observation session, therefore, you purchase a pack of observations that will hold the data you collect while using the app.
Observations are sold in packs of 10, 25, 50, 100, 500, or 1000 observations each. The more you buy at a time, the less they cost.
Once purchased, observations remain on your iPad or iPhone until such time as you delete them. All the data recorded in your observations resides in the iSeeNcode database on your device. To safeguard against data loss, you should backup your device periodically by syncing it with iTunes. You should also export the data at the end of each session by choosing the option to email the spreadsheet. That said, all the data continues to reside on your device until you choose to delete it. iSeeNcode imposes no limit on the number of observations or sessions you can record and thereby store on your device.
The observation meter is at the bottom of the Observations menu. This meter shows how many observations remain in your observation pool. Before beginning an observation session, you should check this meter to make sure you have the number of observations you will need.