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Effortlessly rediscover and organize your Kindle highlights

Newsela
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AI Text Simplifier — Simplify complex English texts and files to your current CEFR level. Try for FREE!
Which is more popular?
Based on our record, Readwise seems to be more popular. It has been mentioned 88 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | readwise.io | simplicefr.me |
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What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Readwise: How to use Spaced Repetition with your books
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Readwise and SimpliCEFR.
SimpliCEFR's answer:
The biggest struggle for English learners when they try to practice reading is 'Vocabulary Barrier' and the loss of context which kills the joy of reading. Thats why we created SimpliCEFR to help students and English learners to improve their reading skills by simplifying text and books to their current CEFR level so they can continue reading and enjoy!
SimpliCEFR's answer:
SimpliCEFR is unique because it doesn't just simplify text; it specifically recalibrates it to match CEFR levels (like A2 or B1). This ensures the output is academically accurate and perfectly tailored to a learner's specific proficiency level, rather than just being a general rewrite.
SimpliCEFR's answer:
The primary audience for SimpliCEFR consists of ESL learners and educators and teachers who need to align complex English content with specific proficiency levels for there students, along with non-native professionals looking to quickly grasp high-level technical or academic texts.
SimpliCEFR's answer:
SimpliCEFR was born out of personal frustration. While reading English books to improve my reading skill, I constantly hit a wall with complex vocabulary that disrupted my flow and made me lose context. I realized the problem wasn't how I was reading, but what I was reading. To fix this, I built a platform that simplifies books and documents to match any proficiency level, ensuring language barriers never get in the way of learning.
SimpliCEFR's answer:
Frontend: Next.js and React, which ensure a fast, SEO-friendly, and responsive interface.
Backend & Auth: Firebase, providing secure authentication and real-time database management (Firestore).
Deployment: Vercel, optimized for hosting Next.js applications with high performance.
Intelligence: Integration of advanced Large Language Models (LLMs) to handle the core text simplification and CEFR leveling logic.
SimpliCEFR's answer:
ESL Students: Language learners who need to simplify academic or complex English texts to match their current CEFR level.
Language Educators: Teachers and tutors who use the tool to quickly adapt reading materials for students with different proficiency levels.
Non-Native Professionals: Individuals working in English-speaking environments who need to grasp the meaning of technical documents or long-form reports quickly.
Self-Learners & Readers: Avid readers who want to enjoy books and articles that are currently above their vocabulary level without losing the context of the story.
Share your experience with using Readwise and SimpliCEFR. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


I imported my kindle highlights, as many others. Now I daily review some highlights (thanks to a dashboard, I am motivated). And where I didn't create highlights, as I only listened to the audiobooks, I get the...
We have no reviews of SimpliCEFR yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Anyway, as I reached the end of the chapter, I wanted to read my Readwise's daily recap. However, my iPhone was in other room. I didn’t want to get up; I was tired. - Source: dev.to / 5 months ago
The only highlights that Readwise retrieves semi-automatically are from the books I buy from Kindle, by going into the Readwise app and clicking a button. If I upload them to Kindle or need highlights from the Apple Books app, I have to... - Source: dev.to / almost 2 years ago
Readwise also has this feature. I get a daily email with a random assortment of highlights that have been pulled in from multiple sources (Reader, Notion, Kindle, etc.) The product benefit in their case is that it's kind of like Zapier,... - Source: Hacker News / almost 2 years ago
Tracking SimpliCEFR since Apr 2026.
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