vs
Comparison
CK-12 Foundation vs Zearn
Who’s behind each, what their homepages track, what they cost and how often their policies changed, measured the same way for both. By what they offer, they’re very close.
CK-12 provides free, customizable K-12 open educational resources, including digital textbooks (FlexBooks), practice exercises, simulations and videos aligned to state curriculum standards.
Zearn is a nonprofit that provides a K–8 math curriculum combining digital lessons with video instruction, printed materials and teacher-led instruction, used in U.S. classrooms and at home.
- Company
- Not stated
- Not stated
- Registered in
- Unknown
- Unknown
- Online since
- Unknown
- Unknown
- Audience
- Smaller site
- Top 10K
- Trackers on the homepage
- Couldn’t check
- Couldn’t check
- Ad trackers
- Couldn’t check
- Couldn’t check
- Cookie banner
- –
- –
- Prices
- No pricing page found
- No pricing page found
- Last price change
- –
- –
- Privacy policy changes
- 0
- 0
- Terms changes
- 0
- 0
- Open positions
- –
- –
Trackers are what each homepage loads before cookie consent; changes count since we started checking each site weekly. Hover a dotted value for its source and date.