Kuliso
ReadWorks has earned genuine respect in the K-12 reading comprehension space. Its 6,000+ leveled articles, formative assessments, and Article-A-Day program are legitimately useful tools — and the fact that they're free makes them accessible to every classroom. For the 5.3 million English Language Learners in U.S. public schools, though, a free English-only reading library is half a solution at best. The question isn't whether ReadWorks has great content. It does. The question is whether your ELL students can access it — and what happens when they can't.
Feature Comparison: Kuliso vs ReadWorks
| Feature | ReadWorks | Kuliso |
|---|---|---|
| Languages supported | English only (some Spanish content available) | 20+ languages — native-language instruction and tutoring |
| Article / text library | 6,000+ curated articles, Article-A-Day program, leveled texts | AI-generated leveled readings in student's home language + English paired texts |
| Bilingual paired texts | Spanish only (limited) | 20+ languages — home language + English side-by-side |
| Background knowledge activation | Built into article design; teacher-guided in English | AI-activated in student's home language before bridging to English concepts |
| Formative assessments | Yes — questions, annotations, graded responses | Yes — adaptive comprehension checks with L1 scaffolding for ELLs |
| AI tutoring | No | Yes — SoBot tutors in student's home language across all subjects |
| Writing feedback | No AI writing feedback; manual teacher grading | AI writing feedback in English and home language; genre-specific rubrics |
| Vocabulary tools | Vocabulary highlighting; teacher-built word lists | Bilingual vocabulary acquisition with spaced repetition; academic vocabulary bridging |
| Phonics / decoding support | Not included | Foundational literacy pathways for newcomers and SIFE students |
| MTSS / RTI tiering | No built-in MTSS framework | Tier 1/2/3 classification with intervention pathway triggers |
| Adaptive learning | Not adaptive — teacher selects text levels manually | Fully adaptive — adjusts difficulty and scaffolding per student in real time |
| Intervention pathways | No structured intervention | Structured intervention pathways for struggling readers and ELL cohorts |
| IEP / 504 / DHH support | No accommodation engine | Built-in IEP and 504 accommodation engine; IDEA-aligned; DHH modality support |
| ELD compliance documentation | No compliance tools | Full ELD portfolio, LPAC docs, reclassification tracking, parent letters in 20+ languages |
| District analytics dashboard | Basic teacher reports | District-wide ELL analytics, growth tracking, and compliance reporting |
| SSO / Clever / Canvas | Yes | Yes |
| FERPA / COPPA compliance | Yes | Yes |
| SEL content | Yes — SEL-focused articles and prompts | Social-emotional vocabulary and themes integrated in multilingual tutoring sessions |
| Pricing | Free for teachers and students | $8–$20/student/year (Title III and IDEA eligible) |
Pricing Comparison
| Plan | ReadWorks | Kuliso |
|---|---|---|
| Teacher / classroom | Free | $14.99/month |
| School plan | Free | $99–$299/month (up to 150 students) |
| District per-student | Free | $8–$20/student/year |
| What you get | 6,000+ English articles, formative assessments, annotations | AI tutoring + reading + writing feedback + assessment + intervention + compliance in 20+ languages |
| Title III / IDEA eligible | N/A (free) | Yes — fully eligible for Title III and IDEA Part B funding |
Where ReadWorks Excels
ReadWorks deserves real credit for what it built. Its article library is exceptional — 6,000+ texts spanning literary and informational genres, carefully leveled from K to 12, with Article-A-Day giving teachers a daily non-fiction reading habit scaffold. The platform is also genuinely free, which means any teacher at any school can use it without a purchase order, budget approval, or IT ticket.
ReadWorks' formative assessments are practical: comprehension questions, annotations, and short-response prompts that give teachers quick data on whether students understood a text. For English-proficient students, this is a solid loop. The SEL content library is also a differentiator — if a school is explicitly integrating social-emotional learning into reading instruction, ReadWorks has purpose-built content for that.
Where ReadWorks Falls Short for ELL Students
The problem is structural: ReadWorks was built for students who read in English. An ELL student at a 2.5 WIDA level who picks up a grade 4 ReadWorks article faces a double barrier — the language of instruction and the academic content simultaneously. ReadWorks has no mechanism to teach in the student's home language, activate background knowledge in the student's language, or scaffold the English academic vocabulary the student needs to access the text.
The result: ELL teachers who use ReadWorks for their English-proficient students often have to abandon it for ELL students — or use it and accept that those students are getting less than their peers. That's the gap Kuliso closes. A Vietnamese-speaking student using Kuliso can read a paired text — Vietnamese and English side-by-side — with background knowledge activated in Vietnamese, vocabulary bridging that explicitly connects the Vietnamese and English academic terms, and AI tutoring in Vietnamese if they get stuck on a concept.
For a district with 300 ELL students and 15 different home languages, ReadWorks reaches maybe 30% of them effectively. Kuliso reaches all of them.
ReadWorks reaches English readers. Kuliso reaches every student.
20+ languages. AI tutoring. Writing feedback. Assessment. Intervention. $8/student/year — fundable through Title III.
Start Free Pilot → See Pricing →Choose the Right Tool for Your Students
Choose ReadWorks if…
- Your students are predominantly English-proficient and you need a free, high-quality article library
- Your teachers want a simple, no-cost tool for daily non-fiction reading practice
- You want SEL-focused reading content without a platform purchase
- Budget is zero and English-only coverage meets your students' needs
Choose Kuliso if…
- You serve ELL or multilingual students who need native-language reading instruction
- You need AI tutoring in Spanish, Arabic, Vietnamese, Somali, or 15+ other languages
- You need AI writing feedback, adaptive benchmarks, and MTSS intervention pathways
- You want IEP/504/DHH accommodations and ELD compliance documentation in one platform
- You're looking for a Title III and IDEA-eligible solution that replaces multiple vendor contracts
Frequently Asked Questions
What is the main difference between Kuliso and ReadWorks?
ReadWorks is a free English-only reading comprehension platform with 6,000+ articles and formative assessments. Kuliso teaches reading comprehension in 20+ languages, adds AI tutoring, AI writing feedback, adaptive benchmarks, and MTSS intervention pathways — making it purpose-built for ELL and multilingual learners who need more than English-only texts.
Does ReadWorks support languages other than English?
ReadWorks has a Spanish content library, but the vast majority of its 6,000+ articles are English-only. There is no native-language AI tutoring, no writing feedback in home languages, and no adaptive instruction for students whose home language isn't Spanish or English. For districts with Arabic, Vietnamese, Somali, or Haitian Creole speakers, ReadWorks provides no native-language support.
Is ReadWorks free? How does Kuliso's pricing compare?
ReadWorks is free. Kuliso starts at $8/student/year for districts. The comparison: ReadWorks gives you a free article library in English. Kuliso adds AI tutoring in 20+ languages, AI writing feedback, adaptive benchmarks, MTSS intervention pathways, compliance documentation, and IEP/504 support — eligible for Title III and IDEA funding at zero general fund cost for most districts.
Does Kuliso have background knowledge activation like ReadWorks?
Yes. Kuliso's AI tutor activates background knowledge in the student's home language before bridging to English academic vocabulary — which is more effective for ELL students than English-only activation. A student reading about photosynthesis gets the concept activated in Vietnamese, Somali, or Arabic first, then bridges to English scientific vocabulary.
Can I use ReadWorks alongside Kuliso?
Yes. Some teachers use ReadWorks for English-proficient students and Kuliso for ELL students, since Kuliso's multilingual tutoring fills the gap ReadWorks doesn't cover. However, districts that adopt Kuliso often find that Kuliso's built-in reading library and AI-generated leveled texts reduce the need for ReadWorks entirely.
Can I use Title III funds to pay for Kuliso?
Yes. Kuliso's native-language supplemental instruction model aligns directly with Title III Part A allowable uses. The IEP/504 accommodation engine qualifies under IDEA Part B. Most districts fund Kuliso entirely through federal allocations at zero general fund cost. Contact the Kuliso team for a funding alignment worksheet for your district.
Ready to reach every student — not just your English readers?
Schedule a live demo with your district's ELL and curriculum team. We'll show how Kuliso maps to your state standards, home language mix, and funding streams.
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