RidoBooks Your level. Right now.
Every book in four reading levels. The same story - calibrated to where you are today. Read a classic at Beginner level. Return at Advanced in six months.
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No more books that are too hard - or too easy.
RidoBooks is the only platform where every book exists in four adaptive reading complexity levels.
Beginner
Essential vocabulary, short sentences, maximum support. Perfect for starting out.
Elementary
Slightly more complexity, common vocabulary. Building confidence.
Intermediate
Natural reading flow, authentic text structure. Real language.
Advanced
Full vocabulary range, unmodified or enriched original. Full mastery.
Everything a language reader needs.
20+ interface languages
English, Spanish, Russian, Italian, Thai, French, Finnish, German, Danish, Japanese, Portuguese, Norwegian, Swedish, Vietnamese, Korean, Polish, Hindi, Indonesian, Turkish, and more.
Full offline reading
Download entire books for travel, commuting, or anywhere without a connection.
Cross-platform sync
Read on your phone, tablet, or browser. Your progress follows you everywhere.
No ads, ever
A clean, distraction-free reading experience. Always. No exceptions.
Growing library
New books added regularly across all genres, levels, and languages.
Part of the ecosystem
One RIDO subscription unlocks RidoBooks and all other RIDO apps.