CK-12 FlexBook 2.0 vs DIKSHA
CK-12 FlexBook 2.0
ck12.org
DIKSHA
diksha.gov.inSide by side
| Figure | CK-12 FlexBook 2.0 | DIKSHA |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 2 | 1 |
| Spec score · Digital Textbook Platforms | 8.9 (#2) | 9.0 (#1) |
| Spec score · Open Educational Resource Platforms | 8.9 (#3) | 9.0 (#1) |
| Accessibility | CK-12’s 2024 VPAT states that the FlexBooks 2.0 platform meets AA conformance across the criteria covered by the report. | DIKSHA provides audio books, Indian Sign Language videos, and a dictionary for children with special needs. |
| Audience | FlexBooks are designed for educators and students and cover K–12 topics. | The platform offers curriculum-relevant learning material to teachers, students, and parents. |
| Headquarters | CK-12 lists its headquarters at 4300 Bohannon Drive, Suite 200, Menlo Park, California. | New Delhi, India |
| Integrations | CK-12 lists Google Classroom, Canvas, Schoology, Kiddom, Clever and ClassLink as SSO or LMS partners. | Users can sign in with Google credentials or participating state systems, and teacher courses run through an LMS integrated into DIKSHA. |
| Purpose | FlexBooks are customizable digital textbooks for K–12 subjects including science, math, and social studies. | DIKSHA is a national platform for school education and an initiative of NCERT under India’s Ministry of Education. |
| Rating on Apple App Store | 4.3 out of 5 from 14 ratings for Flexi AI Tutor & Homework Help. | 2.8 out of 5 from 549 ratings |
| Rating on Google Play | 4.0 out of 5 from 4.1K reviews for the Flexi AI Tutor app. | 4.3 out of 5 from 450,000 reviews |
| Security | CK-12 says it uses administrative, technological and physical safeguards and encrypts transmissions with SSL or similar technology, while disclaiming a guarantee of security. | The privacy policy says personal data is stored using Oracle Cloud Infrastructure servers in India and describes encryption and other security controls. |
| Self-hosting | CK-12’s privacy policy says the platform is operated and hosted on servers in the United States, with no self-hosting procedure documented. | The official open-source page provides a setup path for running a DIKSHA instance and points users to the Sunbird community. |
| What it does | FlexBook 2.0 is CK-12’s interactive digital textbook platform for math and science lessons with embedded learning resources. | DIKSHA is India's national digital platform for school education, serving students, teachers and parents with curriculum-linked resources. |
Plans
In their own words
CK-12 FlexBook 2.0
CK-12 FlexBook 2.0 provides customizable digital textbooks for K–12 subjects including science, math, and social studies. Lessons can combine text with PLIX interactives, simulations, adaptive practice, and related learning materials. Adaptive Practice draws questions from a library of more than 150,000 and adjusts selections based on student answers. Teachers can assign lessons, videos, interactives, and practice to whole classes or differentiated groups, then view progress reports. Educators can reorder chapters and edit or add content in customized FlexBooks. The service works in browsers on laptops, desktops, Chromebooks, tablets, and mobile devices, and is listed at free. Standalone Simulations and PLIX Interactives require a tablet-size screen or larger. Users may download PDFs of FlexBooks they create or customize, though interactive content may not render; CK-12-created PDFs are not downloadable. CK-12 says it is still converting all core content to FlexBook 2.0. Listed SSO or LMS partners include Google Classroom, Canvas, Schoology, Kiddom, Clever, and ClassLink.
DIKSHA
DIKSHA is a national school-education platform and an NCERT initiative under India’s Ministry of Education. It provides curriculum-related resources for teachers, students and parents, including textbooks, videos, interactive material and courses. Browse content by subject, education stage, board or grade, or use the mobile app to scan textbook QR codes and open linked lessons and resources. The platform supports 36 Indian languages and teacher-development programs, including NISHTHA courses. Accessibility resources include audio books, Indian Sign Language videos and a dictionary for children with special needs. DIKSHA is available on Android, iOS and the web, with Android 5.1 and above listed as the mobile requirement. Offline access and annotation tools are listed. The site says it is built with Sunbird, MIT-licensed open-source technology. Its privacy policy describes data storage on Oracle Cloud Infrastructure servers in India and says IP addresses are not retained after use to suggest a state and district. A Windows and Ubuntu desktop app for offline downloaded material is marked “COMING SOON!”.