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iClicker2 Remotes vs. iClicker REEF: What's the difference?

  • MacMillan Learning offers two platforms for classroom polling: iClicker2 remotes and the iClicker REEF app.
  • Either option can be used by students participating in polling sessions.
  • Students can decide which platform works best for them.

Below you will find a quick overview of the differences between the two platforms:


iClicker2 Remote
iClicker REEF App

What is it?

iClicker2 is an analog (physical) remote device.
  • Limited buttons
  • Limited LCD display
a screenshot of the iClicker2 Remote

How much does it cost?

Rent/Buy iClicker2 Remote
Visit the UHD Bookstore
  • Rent used $38.40
  • Rent new $46.20
  • Buy used $49.20
  • Buy new $60.00
Subscribe to iClicker REEF
  • 6 Month $14.99
  • 1 Year $23.99
  • 2 Year $32.99
  • 4 Year $47.99

How does it work?

  • Radio frequency
  • Transmitted to instructor base station

a screenshot of an iClicker remote talking to an iClicker receiver

  • Wi-Fi or mobile data (3G,4G, LTE)
  • Data stored in the cloud
a screenshot of the iClicker app on a phone talking to the cloud


If you have any questions or comments regarding the steps outlined in this document, please contact UHD TLS Training Services by calling (713) 221-8200, or by sending an email to