RainbowOne
Education
Free · In‑App Purchases
Your e-books, your pedagogy.
Cater your student's need.
RainbowOne lets you create your own e-Learning materials and hold a truly interactive and engaging e-lesson. E-books can be easily created and adjusted freely to suit your needs. Our interactive e-lesson equipped with functions which helps you to save time. Exercises can be auto-corrected, and the learning data are analyzed to let you know more about your students’ ability. And the most important is, it is fun!
Innovative e-Book Editor: Total Design Freedom
We offer 80+ comprehensive tool and 10000+ images for you to tailor-make your e-books. You can start with a free canvas or choose from our templates. With easy drag and drop you can customize anything.
Cross-platform lesson: Interact with your students
Lesson can be held in a cross-platform environment. You can group your students and hold a competition, voting or discussion. We also provide page-sync, black-out screen and other functions that helps you manage your class.
Instant Charts: Know your students well
All questions with pre-set answers are instantly corrected. Learning data are automatically collected and analyzed. You can easily find out the learning difficulties of your students.
Bookstore with editable e-books
Share your knowledge! Here we have a bookstore for you to share your materials in public, and you can read the e-books from the bookstore to get some inspiration, or even download and edit it to suit your needs.
more - Added custom question feature to the AI assistant
- Fixed response behavior in dual-page mode
- Fixed issue where images couldn’t be deleted in the image selection question component
- Fixed issue in the image selection question component where, when using custom positioning, randomized answers only shuffled option labels but not the actual options
- Fixed printing issue where the timer component prevented further printing
- Fixed various other component functionality issues
2.8.41 12/31/2025
- Fixed an issue where teachers couldn't replay student e-pen answers during grading
- Fixed an issue where background images in some e-books failed to display
- Fixed an issue preventing users from re-viewing good work recordings
- Fixed an issue where content could disappear when editing popup note components
- Fixed functional errors in other components
2.8.39 11/14/2025
- Manually adjust scores for auto-graded questions
- Added multi-page recalculation of scores
- Transparent MC components support custom icons
- Fixed issues where certain game components were not functioning
- Fixed functionality of drag-and-drop (one-to-one) component
2.8.38 08/23/2025
- Add a "Clear Cache" button on the home screen.
- Automatically re-download data when cached data is corrupted.
- Add a setting to prevent viewing data from being stored in local cache.
- Fix image component issues to improve clarity.
- Add an attachment component.
- Add Two-Page Reading Mode.
- Other bug fix
2.8.37 07/16/2025
- Fixed functionality of the eye-tracking component
- Added voice functionality to the image selection question component
- Resolved the issue where the speech recognition component couldn't operate when setting the font
- Corrected the stroke order font files
- Fixed the issue where the TTS vocalization was incorrectly replaced by the book's settings instead of the component's settings
- Tools that could provide hints will be hidden during test sharing
- Fix the issue where the teacher's audio feedback cannot be played.
2.8.34 02/14/2025
- Fixed account expiry issue preventing re-Login
- Add AI image generation functionality (currently available only for AI picture book contest accounts)
- Fixed issue with quick statistics functionality not working
- Fixed stroke order practice in the vocabulary not displaying correctly in portrait mode on mobile devices
- Correct functionality of forum component
2.8.33 10/03/2024
- Fixed an error in the pinyin component karaoke function after converting from traditional to simplified Chinese
- Fixed an error in displaying pinyin for multi-phonetic characters in the pinyin component
- Fixed the problem that the TTS cannot be playback when using inherit the book setting
2.8.32 08/17/2024
- Pinyin related component function updates
- Fixed an issue where the LCM component answer could not be one.
- Function update of special pages box component
- Fixed the issue where a book with a shared status of "Complete" cannot be left after opening it.
- Fixed an issue where voice input resulted in no response.
- Other component fixes
2.8.31 08/08/2024
Fixed
- Fixed the issue where YouTube videos are still on the screen when writing strokes in full screen mode
- Fixed course report incorrect pop-up
- Corrected checking of mathematical straight-form errors
- Fixed the problem that the jump page component cannot be pressed during correction mode
- Fixed the issue of missing background images in some books
- Fixed the issue where some UI is missing
- Other component fixes
2.8.30 05/08/2024
- Fixed keyboard pop-up problem
2.8.29 04/02/2024
New features
- Learning objective management have been added to the editing mode
- MP3 support changing the playback speed
Fixed
- Fixed memory leak issue
- Solve the problem of local cache error
- Correction of stroke order components
- Other component fixes
2.8.28 03/30/2024
- Fixed statistics ball not working
- Dictionary data correction
- Fixed sharing of RO authorized ebook cannot view the original file location
- Added restore file function to the workspace
- Added "Show old students" option to the student list in the correction interface
- Fixed wrong number of voters in class
- Fixed e-book components function
2.8.26b 11/15/2023
- Fixed statistics ball not working
- Dictionary data correction
- Fixed sharing of RO authorized ebook cannot view the original file location
- Added restore file function to the workspace
- Added "Show old students" option to the student list in the correction interface
- Fixed wrong number of voters in class
- Fixed e-book components function
2.8.26 11/13/2023
- Fixed some users connecting to the server slowly.
- Fixed the forum component not being able to close.
- Fixed iPad only being able to use speakers for sound.
2.8.25 05/11/2023
- Fix the problem that the book share link fails to open
2.8.24 04/07/2023
- Added eLearning Quiz competition 2023
- Fixed the voice playback is not stopped, when the word dictionary is closed
- Fixed sometimes show the course result when the course haven't finish
- Fixed math column method component error
- Fixed pop-up frame component error
- When the teacher corrects the speech recognition component, teacher can see the recognition rate of the student's answer
- Fixed e-book cannot be viewed vertically
- Fixed the problem that the mobile phone can't use the speaker to playback sound
2.8.23 04/04/2023
- Fixed display issue of youtube component
- Fixed import pdf order problem
- Fixed the problem that the autoplay sound does not play
- Import pdf add lock picture function
2.8.22 02/17/2023
- fix can't display student result on combine view, when assigned page to student
- lesson open book share UI update
- fix picture wrong position in the sigle word explainion UI
- add Lobster and Major Mono Display fonts
- fix google drive movie can't playback
2.8.21 01/09/2023
Improvement and bug fixes
•Text switching questions - when more than one input answer, question cannot be verified in edit mode
•Copy e-books to other schools - add the function that e-books can be copied to other schools
•Correction mode - In the teacher's comments, if the teacher hasn't set an avatar picture, the comments will not be loaded
•New word segmentation function
- When reading e-books, a new "word segmentation" function is added to the toolbar. After pressing, red lines will appear before and after words to separate words for components such as general text, text text, multiple choice questions, long questions, text switching questions, restructured sentences, expanded sentences, and questions. There will also be a small button in the upper left corner of each sentence. After pressing it, a popup will pop up. You can listen to the pronunciation, and the text will be marked with the pronunciation. In addition, when a word is pressed, the word information, including text explanation, will be displayed again.
•In the explanation of words - the explanation of Chinese is added to the Xinhua dictionary, and the explanation of English is added to the Oxford dictionary
Other improvement and bug fixes
2.8.20 12/12/2022
New components:
- Number sorting questions
• Compare integers, fractions, decimals
- Calculation area
• Students can write directly in the box without turning on the e-pen
- Number conversion questions
• Fractions, decimals, percents interchangeable
- Short division tool
• Short divisions grid are provided for students to do their own calculations
Component enrichment:
- all text component
• Noto font added Very Light, Light, Medium Bold and Very Bold
- Column form
• Decimals can be entered
- camcorder
• If the video cannot be played, provide a button to jump to the system default browser to playback
Correction:
- correction mode
• Can add text or audio comments anywhere on the page
Other fixes
2.8.19 11/30/2022
New learning components
- Reorder number: compare whole number, fraction and decimal number
- Writing pad: students can write directly in the box without opening the e-pen panel
- Number convert: convert numbers between number, fraction and decimal number
- Short division tool: provide short division box for students to work with short division
Components enhancement
- All text: Font "Noto" added thickness thin, light, medium, bold and black
- Column form: can now add decimal points
- Video recording: If the recorded video cannot be played, a button will be provided to play the video in the default browser of the system
Marking
- In marking mode, teachers can add text of audio comments anywhere on the page
Other revisions
2.8.18 11/21/2022
New learning components
- Reorder number: compare whole number, fraction and decimal number
- Writing pad: students can write directly in the box without opening the e-pen panel
- Number convert: convert numbers between number, fraction and decimal number
- Short division tool: provide short division box for students to work with short division
Components enhancement
- All text: Font "Noto" added thickness thin, light, medium, bold and black
- Column form: can now add decimal points
- Video recording: If the recorded video cannot be played, a button will be provided to play the video in the default browser of the system
Marking
- In marking mode, teachers can add text of audio comments anywhere on the page
Other revisions
2.8.16 10/02/2022
- Added share link for assignments
- Added import pdf as image (for testing only)
- Added these components: Fraction Shape & Answer, Fraction shape Fraction answer, Fraction compare, Fraction convert, LCM/HCF
- Added "One step only" settings for component "Expand fraction"
- e-Pen component can now be set as question / non-question. Default color can also be set.
- In "Progress", you can now view multiple groups performance or search by e-book name
- The "School admin" section UI and program is completely redesigned.
- Added "Subjects" function in School admin, for use at e-book and analysis later on.
- Other improvement and bug fixes
2.8.15 09/28/2022
- Added share link for assignments
- Added import pdf as image (for testing only)
- Added these components: Fraction Shape & Answer, Fraction shape Fraction answer, Fraction compare, Fraction convert, LCM/HCF
- Added "One step only" settings for component "Expand fraction"
- e-Pen component can now be set as question / non-question. Default color can also be set.
- In "Progress", you can now view multiple groups performance or search by e-book name
- The "School admin" section UI and program is completely redesigned.
- Added "Subjects" function in School admin, for use at e-book and analysis later on.
- Other improvement and bug fixes
2.8.13 06/16/2022
- Added share link for assignments
- Added import pdf as image (for testing only)
- Added these components: Fraction Shape & Answer, Fraction shape Fraction answer, Fraction compare, Fraction convert, LCM/HCF
- Added "One step only" settings for component "Expand fraction"
- e-Pen component can now be set as question / non-question. Default color can also be set.
- In "Progress", you can now view multiple groups performance or search by e-book name
- The "School admin" section UI and program is completely redesigned.
- Added "Subjects" function in School admin, for use at e-book and analysis later on.
- Other improvement and bug fixes
2.8.12 06/13/2022
- Added custom question feature to the AI assistant
- Fixed response behavior in dual-page mode
- Fixed issue where images couldn’t be deleted in the image selection question component
- Fixed issue in the image selection question component where, when using custom positioning, randomized answers only shuffled option labels but not the actual options
- Fixed printing issue where the timer component prevented further printing
- Fixed various other component functionality issues
more Version 2.8.41 12/31/2025
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