Globally Adopted, Commercially Proven
The technology chosen by Oxford University Press, the largest university press in the world with a history of over 550 years. Our solutions, exported to markets including Japan, China, Spain and Turkey, won recognition in global markets first.

Core EdTech Technologies
iPortfolio’s services are built on two core technologies.

Utilizing our patented technology, Spindle Books™ is the core solution that transforms print books into smart digital books. It has been selected by Oxford University Press ELT division as its official e-Book platform. Many of top-notch English teaching institutes and global publishers continue to show interests in our technology.



LAURA™ (Language Assistant Utilizing Reading Analytics) is a conversational AI Tutor solution for Personalized Learning. With a pronunciation analysis engine customized for young EFL learners and a personalized AI tutor, it offers a differentiated language experience.


Provides high-quality speech recognition (STT), speech synthesis (TTS), and pronunciation analysis (PAE) technology specialized in understanding pronunciation, stress, and intonation of EFL young learners aged 4-15.

Store learners' reading history and learning data to train generative AI for personalized conversations.

Fine-tune word difficulty, sentence length, speech rate, and more to create a tailored learning experience that matches the learner's age and English level.
The World's First AI-Intrinsic Readers
Character and story-based English learning content developed in-house by iPortfolio.
Harmony Hills is character and story-based English learning content developed in-house by iPortfolio. It follows the everyday stories of characters with different backgrounds, talents, and personalities living together in a village called ‘Harmony Hills’. Children empathize with the characters’ growth and relationships, immerse themselves in the stories, and naturally learn English while experiencing diverse values of life.
English learning services chosen by 4.5 million learners in over 120 countries
We combine our EdTech technology with original content of our own to deliver a differentiated learning experience.

READING & is a premium e-Book platform, housing best-seller readers of global major publishers, such as Oxford University Press, Collins, and Penguin Random House. READING & helps children to acquire English language skills naturally through our unique pedagogy called 5-step Multi-Dimension Reading.