CK-12 FlexBook 2.0
7.6#3 in digital textbook platformsFree planFree planAndroidiOSWebExtension
VisitCK-12 FlexBook 2.0 vs Universal Open Textbook Initiative
Universal Open Textbook Initiative
6.0#19 in open educational resource platformsFree planFree planWeb
VisitWhat both publish
| Fact | CK-12 FlexBook 2.0 | Universal Open Textbook Initiative |
|---|---|---|
| Privacy and security | CK-12 says it uses administrative, technological, and physical safeguards and encrypts information transmissions using SSL or similar technologies. | The privacy policy says collected data is protected with encryption in transit and at rest and that UOTI does not sell or rent personal data. |
| Purpose | FlexBooks are customizable digital textbooks for K–12 subjects including science, math, and social studies. | UOTI describes its goal as building a repository of high-quality, multilingual, free textbooks. |
CK-12 FlexBook 2.0 plans
- CK-12 FlexBook 2.0Free
- FlexBook 2.0Free
Universal Open Textbook Initiative plans
- Free textbooksFree
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 Universal Open Textbook Initiative if…
UOTI suits learners and educators looking for free textbooks across multiple subjects, age ranges, and languages. It may also interest readers seeking PDF access or books that can be shared and adapted under their individual licenses.