Do I have everything with me when I go out?
Have I taken the medication yet?
What do I have to buy?
Blitz↯Merker provides an answer to these questions.
It reminds you of everything that should not be forgotten, making use of QR codes with associated watch lists, a quick reminder list and a timed reminder function.
You can use the app to create named watch lists that contain all the things that shouldn't be forgotten.
With watch list associated to scannable codes (such as QR or barcodes) attached to certain locations, the app reminds you of the relevant watch list when you leave your home, for example.
When called up, the elements of a watch list are displayed in a confirmation view so that you can confirm them one by one.
The app also features an automatic time-based reminder function, which can be configured to remind you at certain points in time of recurring tasks, like taking medicine.
Additionally, the quick-list feature allows you to record spontaneous ideas, thoughts, appointments, etc. quickly and categorized.
The app features an extensive help function and can also serve as a regular (QR-) code scanner.
Supported languages are: English, Spanish, German, French, Italian, Portuguese.

By the way: in German, a "Blitzmerker" is someone who understands facts quickly (however, the term is mostly used ironically).