vs
Comparison
CK-12 Foundation vs DeltaMath
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 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.
DeltaMath is an online math practice site where teachers assign randomized problem sets with instant step-by-step explanations and track student progress. Paid PLUS and INTEGRAL tiers add tests, custom problems and help videos, and a home subscription serves families.
- Company
- Not stated
- Not stated
- Registered in
- Unknown
- Unknown
- Online since
- Unknown
- Unknown
- Audience
- Smaller site
- Smaller site
- Trackers on the homepage
- Couldn’t check
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- Third-party embeds: Google Fonts
- Ad trackers
- Couldn’t check
- None
- Cookie banner
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- –
- Prices
- No pricing page found
- No pricing page found
- Last price change
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- –
- Privacy policy changes
- 0
- 0
- Terms changes
- 0
- 0
- Open positions
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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.