CK-12 FlexBook 2.0
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VisitCK-12 FlexBook 2.0 vs FlatWorld
What both publish
| Fact | CK-12 FlexBook 2.0 | FlatWorld |
|---|---|---|
| Accessibility | CK-12’s 2024 VPAT states that the FlexBooks 2.0 platform meets AA conformance across the criteria covered by the report. | FlatWorld says its platform meets WCAG 2.2 Level AA and provides accessibility documentation including a VPAT/ACR. |
| Audience | FlexBooks are designed for educators and students and cover K–12 topics. | Its materials are designed for college and university instructors and students. |
| Customization | Teachers can customize and create FlexBooks, chapters and sections and add existing CK-12 content. | Instructors can reorder chapters, hide sections, and add custom material using FlatWorld’s textbook customization tools. |
| Headquarters | CK-12 lists its headquarters at 4300 Bohannon Drive, Suite 200, Menlo Park, California. | Boston, Massachusetts, United States |
| Security | CK-12 says it uses administrative, technological and physical safeguards and encrypts transmissions with SSL or similar technology, while disclaiming a guarantee of security. | FlatWorld’s Trust Portal says it maintains an active SOC 2 Type II report and is TX-RAMP certified. |
CK-12 FlexBook 2.0 plans
- FlexBook 2.0Free
- CK-12 FlexBook 2.0Free
FlatWorld plans
- Basic$34.95, paid once
- Standard$54.95, paid once
- Print$61.95, paid once
Pick CK-12 FlexBook 2.0 if…
FlexBook 2.0 suits K–12 educators who want to adapt textbook chapters and assign lessons or practice to classes and differentiated groups. Students can use its lessons and adaptive practice, while the browser access supports a range of device types.
Pick FlatWorld if…
You want what its maker publishes above — check its page for the details.