CK-12 FlexBook 2.0
7.6#3 in digital textbook platformsFree planFree planAndroidiOSWebExtension
VisitCK-12 FlexBook 2.0 vs Science4Us
Science4Us
5.5#22 in science learning softwareWeb
VisitWhat both publish
| Fact | CK-12 FlexBook 2.0 | Science4Us |
|---|---|---|
| Device access | CK-12 says FlexBooks are usable on smartphones, Chromebooks, tablets, laptops and desktops. | The company says Science4Us works with internet-connected devices and supports classroom use with one computer and a projector. |
| Purpose | FlexBooks are customizable digital textbooks for K–12 subjects including science, math, and social studies. | Science4Us is an interactive science curriculum designed for students in grades K–2. |
| 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. | ExploreLearning states that it earned ISO 27001:2013 certification in 2024 and describes its applications as certified COPPA and FERPA compliant by iKeepSafe. |
CK-12 FlexBook 2.0 plans
- CK-12 FlexBook 2.0Free
- FlexBook 2.0Free
Science4Us plans
- Science4Us 30-day trialFree
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 Science4Us if…
It is designed for schools and educators teaching science to grades K–2. It suits classrooms needing browser-based lessons, interactive activities, reporting, and professional-development resources.