most people will probably use a usb cable to iphone<->PC/Laptop<->USB-Stick.

But can it be done iphone<->USB-Stick?

Apple’s devices do NOT come with a file explorer per default. which sucks. So you will have to rely on the quality of 3rd party apps. Sometimes this quality also sucks.

device in question: http://www.notebookinfo.de/produkte/apple-iphone-5-16gb-schwarz/md297dn-a/00012005/

target: backup picturs to usb stick

https://www.amazon.de/GiBot-Kartenleser-Reader-Kartenlesegerät-Adapter/dp/B074TX358H/

https://www.ebay.de/itm/SANDISK-Cruzer-Ultra-USB-Stick-32-GB/251784227116

https://www.cultofmac.com/498542/how-to-use-usb-hub-multiple-devices-ipad/

requirements: The iPhone / iPad must download the free app „iUSB Pro“ from the App Store to run this card reader.Android-Smartphone it needs USB On-The-Go (OTG) functionality.

OTG a standardized specification for USB connections that allows a device to read data from a USB connection without requiring a PC. The device is basically becoming a “USB Host”, which isn’t an ability every gadget has.

for samsung android phones: https://www.amazon.com/UGREEN-Converter-Adapter-Compatible-Samsung/dp/B00N9S9Z0G/

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