Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · Google Workspace Academic Software

CK-12 FlexBook 2.0 vs Genially

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score CK-12 FlexBook 2.0 #1 in Google Workspace Academic Software 9.2/10 Free plan Free plan✓ 1 of 3 features Visit CK-12
Genially #3 in Google Workspace Academic Software 8.7/10 Free plan Free plan✓ 0 of 3 features Visit Genially

CK-12 FlexBook 2.0 leads on 0 checks, Genially on 0, and 2 are even. Who comes out ahead on the 2 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 · 9.2/10
  • Free planboth
  • Most featuresCK-12 FlexBook 2.0 · 1 of 3

CK-12 FlexBook 2.0 scores higher on our rubric for google workspace academic software: 9.2 against 8.7 out of 10; our editors rank them #1 and #3.

CK-12 FlexBook 2.0 is the better fit for free K–12 science lessons and simulations. Genially is the better fit for teams creating interactive learning presentations.

  • CK-12 FlexBook 2.0 fits best

    Free K–12 science lessons and simulations

  • Genially fits best

    Teams creating interactive learning presentations

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature CK-12 FlexBook 2.0 9.2/10 Visit ↗ Genially 8.7/10 Visit ↗
At a glance
Editor score 9.2 8.7
Ranking #1 in Google Workspace Academic Software #3 in Google Workspace Academic Software
Best for Free K–12 science lessons and simulations Teams creating interactive learning presentations
Pricing model Free Free plan + paid
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Support Email, Community, Docs Docs · 24/7
Integrations 6 integrations 100+ integrations
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features CK-12 FlexBook 2.0 1/3 · Genially 0/3
Google Classroom integration Not checked yet Not checked yet
Roster sync Not checked yet Not checked yet
Assessment tools ✓ (best) Not checked yet
Specs
Workspace editions Not checked yet Not checked yet
Supported platforms Browser on laptop, desktop, Chromebook, tablet, or mobile device Not checked yet
Student limit Not checked yet Not checked yet
Our review
Pros
  • Teachers can rearrange textbook chapters and add their own materials.
  • Lessons combine videos, interactives, practice, and science simulations.
  • Progress monitoring, assignments, and quizzes support classroom delivery.
  • Templates span presentations, eLearning, games, and infographics.
  • Supports co-editing, team workspaces, and a Brand Kit.
  • Publishes to web, embeds, or downloads in formats such as PDF and MP4.
Cons
  • Its focus is K–12 science rather than a broad range of school subjects.
  • Classroom delivery depends on a browser-based platform.
  • Its feature set may be more than needed for teachers seeking only a textbook.
  • It creates teaching content rather than providing a full teaching platform.
  • It is web-based, with no desktop app.
  • Its focus on interactive visual content may not suit broader teaching needs.
Our verdict

CK-12 FlexBook 2.0 gives students and teachers free, customizable digital textbooks and interactive learning materials for K–12 science. Parents and schools can also access the materials. Teachers can rearrange chapters, add resources,…

Read the review →

Genially is a cloud-based web application for creating interactive and animated visual content without coding. Educators, schools, higher-education teams, and other groups can use it to make presentations, infographics, quizzes, surveys,…

Read the review →
  1. CK-12 FlexBook 2.0Google Workspace Academic Software 9.2Free plan
  2. GeniallyGoogle Workspace Academic Software 8.7Free plan

Strengths and trade-offs

  • CK-12 FlexBook 2.0 — where it wins

    • Teachers can rearrange textbook chapters and add their own materials.
    • Lessons combine videos, interactives, practice, and science simulations.
    • Progress monitoring, assignments, and quizzes support classroom delivery.

    Where it doesn't

    • Its focus is K–12 science rather than a broad range of school subjects.
    • Classroom delivery depends on a browser-based platform.
    • Its feature set may be more than needed for teachers seeking only a textbook.
  • Genially — where it wins

    • Templates span presentations, eLearning, games, and infographics.
    • Supports co-editing, team workspaces, and a Brand Kit.
    • Publishes to web, embeds, or downloads in formats such as PDF and MP4.

    Where it doesn't

    • It creates teaching content rather than providing a full teaching platform.
    • It is web-based, with no desktop app.
    • Its focus on interactive visual content may not suit broader teaching needs.
  • CK-12 FlexBook 2.09.2/10 · Free plan

    A free browser-based platform for customizable K–12 science lessons, practice, and assessment.

    Visit CK-12Full verdict →
  • Genially8.7/10 · Free plan

    A web-based content creator for interactive lessons, quizzes, and presentations.

    Visit GeniallyFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update