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Updated

Using STEMpump on iPhone Duo

The STEMpump App works with iPhone Duo however you hold it.

  • Folded, it works just like on any other iPhone, on the outer display.
  • Unfolded, the app spreads out into wider layouts made for the bigger inner display, like on iPad.
  • Half-folded, camps switch to a tabletop view made for watching hands-free.

Everything else is the same as on iPhone, including downloads, widgets and Intelligence. For the bigger screen of an iPad, see Using STEMpump on iPad.


See all

Reporting a bug in the app

Sorry about that! Email support@stempump.com with: What happened, and what you expected to happen Your iPhone or iPad model and iOS version The app's version, shown at the top of…

Reviewing missed questions

The STEMpump App remembers the quiz questions you get wrong and brings them back later, so you can practice until they stick. A Review card appears on Discover when you have…

STEMpump Bolt is built in now

In the STEMpump App 4, Bolt was a separate scanner that read through courses and camps, found the STEMpump content they mentioned and suggested it, with a badge in your Favorites…

STEMpump Support

Still need help?

STEMpump is run by a small team of volunteers. We read every message and usually reply within a few days.


  • Email us

    Questions, feedback, or a problem to report: a typo, a wrong answer or something broken. Send us the link and what you saw.

    support@stempump.com
  • Contribute

    Write a course, improve a lesson or share an idea.

    How to contribute