Lumen Learning vs CK-12 FlexBook 2.0

Lumen Learning8.7Visit CK-12 FlexBook 2.08.5Visit

Higher score Lumen Learning #6 in Open Educational Resource Platforms 8.7/10 Free plan Free plan✓ 3 of 6 features Visit Lumen Learning

vs

CK-12 FlexBook 2.0 #8 in Open Educational Resource Platforms 8.5/10 Free plan Free plan✓ 0 of 6 features Visit CK-12

• Lumen Learning fits best

  Institutions needing supported OER courses

• CK-12 FlexBook 2.0 fits best

  Interactive K–12 science learning resources

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Side by side

Feature	Lumen Learning 8.7/10 Visit ↗	CK-12 FlexBook 2.0 8.5/10 Visit ↗
At a glance
Editor score	8.7	8.5
Ranking	#6 in Open Educational Resource Platforms	#8 in Open Educational Resource Platforms
Best for	Institutions needing supported OER courses	Interactive K–12 science learning resources
Pricing model	Free plan + paid	Free
Starting price	—	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud, Mobile	Cloud
Platforms	Web, iOS, Android	Web
Support	Email, Tickets, Docs · 24/7	Email, Community, Docs
Integrations	4 integrations	6 integrations
Built for	Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Lumen Learning 3/6 · CK-12 FlexBook 2.0 0/6
Open-license filter	Not checked yet	Not checked yet
Remix and adaptation	✓ (best)	Not checked yet
Authoring tools	✓ (best)	Not checked yet
Publishing workflow	Not checked yet	Not checked yet
API access	Not checked yet	Not checked yet
Content review	✓ (best)	Not checked yet
Specs
Download formats	PDF, EPUB	Not checked yet
Our review
Pros	Remixable OER with authoring, editing, and redistribution Practice, assessments, feedback, and personalized learning tools Canvas, Blackboard Learn, D2L Brightspace, and Moodle integrations	Customizable textbooks combine lessons, videos, interactives, and practice. Physics and chemistry simulations support interactive concept learning. Assignments, assessments, and progress insights support classroom management.
Cons	Interactive courseware requires payment or institutional coverage Paid support and training add costs beyond free public OER Designed primarily for colleges and universities, not general audiences	Its strongest scope is K–12 science rather than broader subject coverage. The platform is browser-based across supported laptops, tablets, and mobile devices. Teachers must tailor chapters, add materials, and organize assigned content.
Our verdict	Lumen Learning provides open educational resources, digital courseware, learning tools, and faculty support for colleges and universities. Faculty can select materials from its OER course catalog, revise and remix content, create courses,… Read the review →	CK-12 FlexBook 2.0 is a free, browser-based platform for customizable digital textbooks and interactive learning materials. It is designed for K–12 science learning and serves students, teachers, parents, and schools. Teachers can… Read the review →

Strengths and trade-offs

• Lumen Learning — where it wins

  • Remixable OER with authoring, editing, and redistribution
  • Practice, assessments, feedback, and personalized learning tools
  • Canvas, Blackboard Learn, D2L Brightspace, and Moodle integrations

  Where it doesn't

  • Interactive courseware requires payment or institutional coverage
  • Paid support and training add costs beyond free public OER
  • Designed primarily for colleges and universities, not general audiences

• CK-12 FlexBook 2.0 — where it wins

  • Customizable textbooks combine lessons, videos, interactives, and practice.
  • Physics and chemistry simulations support interactive concept learning.
  • Assignments, assessments, and progress insights support classroom management.

  Where it doesn't

  • Its strongest scope is K–12 science rather than broader subject coverage.
  • The platform is browser-based across supported laptops, tablets, and mobile devices.
  • Teachers must tailor chapters, add materials, and organize assigned content.

• Lumen Learning8.7/10 · Free plan

  Lumen pairs remixable OER with supported courseware, assessments, and LMS grade return.

  Visit Lumen LearningFull verdict →
• CK-12 FlexBook 2.08.5/10 · Free plan

  A free, science-focused platform combining editable textbooks, simulations, practice, and assessments.

  Visit CK-12Full verdict →