Credits & Attribution
Last updated: June 10, 2026
iPrepGenius is built with open and freely-licensed resources. We gratefully credit:
Object icons — Twemoji
Friendly object icons in our questions (animals, fruits, sports, vehicles) are from Twemoji, © Twitter / the jdecked Twemoji project, licensed under CC-BY 4.0. Icons are used unmodified and self-hosted. Source: github.com/jdecked/twemoji · License: creativecommons.org/licenses/by/4.0/
Badges & achievements — Game Icons
Achievement and badge art is from Game Icons (game-icons.net), licensed under CC-BY 3.0. Icons are recolored for our theme.
Country flags — Twemoji
Flag icons used in geography questions are from Twemoji (CC-BY 4.0).
3D object art — Fluent Emoji
Premium 3D-flat object art is from Microsoft Fluent Emoji, licensed under the MIT License. Source: github.com/microsoft/fluentui-emoji
Interface icons — Phosphor Icons
UI icons are from Phosphor Icons, licensed under the MIT License. Source: phosphoricons.com
Typeface — Plus Jakarta Sans
Our typeface is Plus Jakarta Sans, licensed under the SIL Open Font License.
Curriculum alignment — open educational resources
Our questions are written to Common Core State Standards (CCSS), which are public educational standards. Where we align item rigor and style to existing curricula, we use only openly-licensed resources — EngageNY / Eureka Math (© New York State Education Department) and Illustrative Mathematics, both licensed under CC-BY 4.0. We reference standards, format, and rigor only; we do not reproduce their items.
Question content
All practice questions are original, generated by iPrepGenius. We do not reproduce copyrighted or secured test items; published materials inform only format and difficulty.