Rhombus

Rhombus


This is essentially a beta right now. If you try this and it does not work, I would appreciate if you could contact me with the type of phone and app settings you were using.

Rhombus uses the Squareup magnetic stripe card reading dongle to read any standard format magnetic stripe card. You can use it to see what information is on your credit cards, loyalty cards, driver's license, and more. When a credit/debit card is scanned, it attempts to determine the issuer. In the screenshot above, you can see a redacted result of scanning an expired visa card. One of the other screenshots shows a scan of a Main Event fun card.
Rhombus reads track 2 by default, but will read track 1 if the card is offset by a small shim.
Rhombus does not have internet permissions, so it cannot send out any information about cards you may scan.

Recent changes:
Removed a few debug statements that might leak info through logs, attempt to fix occasional NullPointer crash on Square dongle insert/remove.
Add to list
Free
65
3.3
User ratings
51
Installs
5,000+
Concerns
0
File size
168 kb
Screenshots
Screenshot of Rhombus Screenshot of Rhombus Screenshot of Rhombus
About Rhombus
This is essentially a beta right now. If you try this and it does not work, I would appreciate if you could contact me with the type of phone and app settings you were using.

Rhombus uses the Squareup magnetic stripe card reading dongle to read any standard format magnetic stripe card. You can use it to see what information is on your credit cards, loyalty cards, driver's license, and more. When a credit/debit card is scanned, it attempts to determine the issuer. In the screenshot above, you can see a redacted result of scanning an expired visa card. One of the other screenshots shows a scan of a Main Event fun card.
Rhombus reads track 2 by default, but will read track 1 if the card is offset by a small shim.
Rhombus does not have internet permissions, so it cannot send out any information about cards you may scan.

Recent changes:
Removed a few debug statements that might leak info through logs, attempt to fix occasional NullPointer crash on Square dongle insert/remove.

User reviews of Rhombus
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Android Market Comments
A Google User
Oct 11, 2014
Unsuccessful with a OnePlus One Does not work with regular settings on the OnePlus One. Played around with the settings and still does not work.
A Google User
Sep 16, 2014
Did not work. Did not work with Motorola Droid M.
A Google User
Sep 12, 2014
Doesn't work on Nexus 5 Was about to give 1 star rating, but after reading a great article on instructables found out that Square reader has a reader with an encryption. Don't really get yet how come and why some other devices are finely read data, but anyways. hope for fix; and gonna try to do it myself soon.
A Google User
May 20, 2014
Best configuration So far, with this configuration, i manage to get more 90% success rate. Sample rate: 44100Hz Threshold: 40% Silence level: around 500
A Google User
May 7, 2014
didn't work however about 3 hours later i had a charge for 10 dollars from the xbox store. i dont own and xbox. this needs to be looked into.