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.
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Free
68
3.4
User ratings
46
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.

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User reviews of Rhombus
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Android Market Comments
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.
A Google User
May 4, 2014
Samsung Tab3 I tried every settig and different card ant it didnt work with Samsung Tab3
A Google User
Apr 17, 2014
Source code Hello, I want this application source code.i want to understand this code and check hows it works.
A Google User
Feb 27, 2014
Can't get it to work Droid RAZR HD, won't read anything. I've adjusted settings around and nothing, I'm using the Paypal card reader but it's the exact same thing