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Head-to-head · Science Learning Software

CK-12 FlexBook 2.0 vs LabXchange

Updated Oct 2026
Both researched from official sources
5 checks side by side

Higher score CK-12 FlexBook 2.0 #2 in Science Learning Software 9.3/10 Free plan Free plan✓ 3 of 4 features Visit CK-12

LabXchange #6 in Science Learning Software 8.8/10 Free plan Free plan✓ 4 of 4 features Visit LabXchange

CK-12 FlexBook 2.0 leads on 0 checks, LabXchange on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

Highest scoreCK-12 FlexBook 2.0 · 9.3/10
Free planboth
Most featuresLabXchange · 4 of 4

CK-12 FlexBook 2.0 scores higher on our rubric for science learning software: 9.3 against 8.8 out of 10; our editors rank them #2 and #6.

On science scope, CK-12 FlexBook 2.0 gives you K-12 science where LabXchange offers Multi-subject.

CK-12 FlexBook 2.0 is the better fit for schools wanting a fully free science platform. LabXchange is the better fit for free educators building custom science pathways.

CK-12 FlexBook 2.0 fits best
Schools wanting a fully free science platform
LabXchange fits best
Free educators building custom science pathways

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Side by side

Show only differences

Feature	CK-12 FlexBook 2.0 9.3/10 Visit ↗	LabXchange 8.8/10 Visit ↗
At a glance
Editor score	9.3	8.8
Ranking	#2 in Science Learning Software	#6 in Science Learning Software
Best for	Schools wanting a fully free science platform	Free educators building custom science pathways
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud	Cloud
Platforms	Web	Web, Windows, macOS
Support	Email, Community, Docs	Docs
Built for	Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features CK-12 FlexBook 2.0 3/4 · LabXchange 4/4
Interactive simulations	✓	✓
Virtual experiments	Not checked yet	✓ (best)
Guided lessons	✓	✓
Assessment tools	✓	✓
Specs
Science scope	K-12 science	Multi-subject
Included learners	Not checked yet	Not checked yet
Supported platforms	Browser on laptop, desktop, Chromebook, tablet, or mobile device	Windows 10+, macOS 12+, ChromeOS, Chrome, Edge, Safari, mobile browsers
Our review
Pros	Free customizable textbooks with videos, interactives, and practice Physics and chemistry simulations plus adaptive personalized questions Assignments, progress insights, and LMS grade passback support	Interactive virtual labs support multi-subject science learning Educators can customize pathways, classes, questions, and worksheets Progress tracking and a multimedia library support varied instruction
Cons	Browser-based access only Science content is focused on K–12 learning Customization and class management are teacher-led	Some interactive simulations work only on desktop or laptop devices The published product details do not list integrations Its broad resource library may require educator curation
Our verdict	CK-12 FlexBook 2.0 is a browser-based science learning platform for K–12 students, teachers, parents, and schools. Its core offering combines customizable digital textbooks with interactive lessons, embedded videos, practice activities,… Read the review →	LabXchange is a free online science learning platform created at Harvard University for educators, students, and lifelong learners. It focuses on middle and high school STEMM education while also supporting university, career, and… Read the review →

CK-12 FlexBook 2.0Science Learning Software 9.3Free plan
L LabXchangeScience Learning Software 8.8Free plan

Compare the top tools in

Strengths and trade-offs

CK-12 FlexBook 2.0 — where it wins
- Free customizable textbooks with videos, interactives, and practice
- Physics and chemistry simulations plus adaptive personalized questions
- Assignments, progress insights, and LMS grade passback support
Where it doesn't
- Browser-based access only
- Science content is focused on K–12 learning
- Customization and class management are teacher-led
LabXchange — where it wins
- Interactive virtual labs support multi-subject science learning
- Educators can customize pathways, classes, questions, and worksheets
- Progress tracking and a multimedia library support varied instruction
Where it doesn't
- Some interactive simulations work only on desktop or laptop devices
- The published product details do not list integrations
- Its broad resource library may require educator curation

CK-12 FlexBook 2.09.3/10 · Free plan
A broad, free science platform for schools that want customizable content and classroom tools.
Visit CK-12 Full verdict →
LabXchange8.8/10 · Free plan
A broad, free science platform for educators who want customizable learning pathways.
Visit LabXchange Full verdict →

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated 7 Oct 2026 · How we research and update