That hasn't been my experience.  We have two magstripe readers.  One on a Ipad Mini with the headphone jack that works just fine.  The other is on an Iphone 7 using the supplied cord with the magstripe reader.  It takes at least three swipes to get it to work.  Today it wouldn't work at all.

@chabunga Have you tried swapping out the sets?  See if the one you know works well will work in the phone. If it does then try the one that's not working on the tablet.   If it fails you know you have a bad cable or a bad reader.  Magstripe reader may need to be replaced.  

Thanks for the quick response!  I'll give that a whirl and let you know.  Thank!

@Iley-Cole - I went ahead and moved your comment to this thread, as it's closely related to your question. Check it out! 

@athamburg57 Check out the information in this existing thread. It should answer most of the questions you have around the new iPhone. 

You can order your free reader here. https://squareup.com/dashboard/account/reader-request

Or you can buy the contactless reader here. https://squareup.com/shop/hardware/us/en/products/chip-credit-card-reader-with-nfc?utm_medium=Redire...

You'll need the free magnetic stripe reader with the contactless reader because not all cards have chips yet.

Your iPhone 7 came with a lightning to headphone jack adapter in the box.

The free card reader works on my iPhone 7 Plus using the Apple provided lightning to 3.5mm cable. If you no longer have this cable you'll probably need to buy the one from Apple for $9

http://www.apple.com/shop/product/MMX62AM/A/lightning-to-35-mm-headphone-jack-adapter

The free card reader will only work with a 3.5mm jack that supports both audio & mic input. Many of the 3rd party lightning to 3.5mm cables or cases only support a stereo audio output.

Your iPhone 7 came with a lightning to headphone adapter. You could use that but it might not be the best customer experience.

You could also use the bluetooth reader that has the additional benefit of Apple Pay and Chip reading. 

https://squareup.com/shop/hardware/us/en/products/chip-credit-card-reader-with-nfc

Honestly, I prefer a tablet for the application for the  item grid screen. Easier for the customer to use as well.

Hey @Michy -

I moved your question to this thread where other sellers also wondered about using the Magstripe reader and Chip Card reader with the iPhone 7. @mtnwswbob is right on with this information - thanks! 😎

Let us know if you need anything else. 

Hi, Android fanboy here, now you know why working with Apple products is no bueno. They switched to a proprietary lightning adapter so all accessories makers now have to pay a royalty to Apple regardless of loss of function.

Square has a lightning adapter: https://squareup.com/shop/hardware/us/en/products/lightning-adapter-for-square-reader

OR

You can use the lightning to headphone converter provided to you in the iPhone box itself.

@seahcriss, you use the adapter that came in the box with the iPhone.

This reply was created from merging an existing thread: Where does the mag stripe reader connect with my iPhone 7?

Hi @SecondSet! Other sellers asked the same question so I moved your post here, check out the Best Answer in this thread to see how to use Square readers with your iPhone 7!