Test Card

Test Card is a simple screen test card for Android designed to allow you to view the structures of pixels under magnification.


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  2. Description
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  4. Old versions


Developer: Moonblink

Category: System

Latest version: 1.1

Total versions: 2

Submitted: 11 Nov 2010

Updated: 11 Nov 2010


Test Card is a simple screen test pattern for Android devices written by Ian Cameron Smith (aka headstay) and released under GPL license.

The app displays test patterns which enable you to see the structure of individual pixels, and the effect that has on the overall quality of the display.

On many devices, the display will be utterly uninteresting. However, on some, notably AMOLED devices, the results — when viewed under magnification — are much more interesting. Comparing a Motorola Droid with a Nexus One, for example, shows a significant difference in the display quality.

The test patterns are shown multiple times at different offsets, so that if a screen has pixels with different colour components — as some AMOLED displays — you can see how the patterns look on different pixel alignments. On some displays this will have no effect, on others a very marked effect.


Test Card 1.1 seem to be the latest available version. Below you can find file(s) assigned to this version:

Description/changelog of Test Card 1.1:

Released: July 11, 2010.
- Installing to SD card is allowed.

Old versions

Below are the earlier versions of Test Card.

Test Card 1.0

Description/changelog of Test Card 1.0:

Released: March 31, 2010.



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Other apps

There are 6 more apps by Moonblink for Android:
Touch Test
Scrambled Net