What does دفتر ملاحظات look like on HTC?

On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.

When did HTC add دفتر ملاحظات?

HTC first drew دفتر ملاحظات in Sense 7, released 30 مارس 2015.

HTC Corporation has shipped 2 versions of دفتر ملاحظات. Each is dated, so you can see when the design changed.

HTC

HTC Corporation has drawn دفتر ملاحظات 2 times. Every revision HTC has shipped is below, newest first.

What does دفتر ملاحظات look like on HTC?: On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.
When did HTC add دفتر ملاحظات?: HTC first drew دفتر ملاحظات in Sense 7, released 30 مارس 2015.
How many times has HTC redrawn دفتر ملاحظات?: HTC Corporation has shipped 2 versions of دفتر ملاحظات. Each is dated, so you can see when the design changed.

HTC artwork for this emoji spans 2015 to 2016.