Head-to-head · Adaptive Learning Software
i-Ready Personalized Instruction vs CENTURY
i-Ready Personalized Instruction leads on 0 checks, CENTURY on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scorei-Ready Personalized Instruction · 8.5/10
- Free trialonly CENTURY
i-Ready Personalized Instruction scores higher on our rubric for adaptive learning software: 8.5 against 8.2 out of 10; our editors rank them #7 and #9.
i-Ready Personalized Instruction is the better fit for K-8 personalized reading and math instruction. CENTURY is the better fit for multi-subject adaptive exam preparation.
- i-Ready Personalized Instruction fits best
K-8 personalized reading and math instruction
- CENTURY fits best
Multi-subject adaptive exam preparation
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Side by side
| Feature | i-Ready Personalized Instruction 8.5/10 Visit ↗ | CENTURY 8.2/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.5 | 8.2 |
| Ranking | #7 in Adaptive Learning Software | #9 in Adaptive Learning Software |
| Best for | K-8 personalized reading and math instruction | Multi-subject adaptive exam preparation |
| Pricing model | Paid | Paid |
| Starting price | Pricing on request | — |
| Free plan | Not checked yet | — |
| Free trial | — | 7 days |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Support | Email, Phone, Docs | Email, Docs |
| Built for | Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features i-Ready Personalized Instruction 0/6 · CENTURY 0/6 | ||
| Adaptive practice | Not checked yet | Not checked yet |
| Adaptive learning paths | Not checked yet | Not checked yet |
| Diagnostic assessment | Not checked yet | Not checked yet |
| Content authoring | Not checked yet | Not checked yet |
| LMS integrations | Not checked yet | Not checked yet |
| Offline access | Not checked yet | Not checked yet |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | i-Ready Personalized Instruction is a supplemental and intervention program for schools and districts serving students in Grades K–8. It provides adaptive digital reading and mathematics lessons in English and Spanish, with individualized… Read the review → |
CENTURY is an online adaptive learning platform for students, educators, tutors, guardians and independent learners. Its focus is multi-subject study, combining curriculum-aligned content with AI-personalised learning pathways. Learners… Read the review → |
Strengths and trade-offs
i-Ready Personalized Instruction — where it wins
- Assessment-driven adaptive paths personalize reading and math lessons
- English and Spanish instruction across reading and mathematics
- Reporting spans students, classes, schools, and districts
Where it doesn't
- Requires i-Ready Assessment for student placement
- Designed for school and district purchases, not home use
- Web access is the listed platform
CENTURY — where it wins
- AI-personalised pathways combine diagnostics with adaptive recommendations
- Covers maths, English, science and exam-board-specific content
- Dashboards track learner progress, activity and performance analysis
Where it doesn't
- Access is web-only, with no listed mobile platform
- There is no free plan beyond the seven-day trial
- Pricing varies by audience and educator or tutor licences are separate
- i-Ready Personalized Instruction8.5/10 · Pricing on request
Assessment-driven personalized reading and math instruction for schools and districts.
Visit i-ReadyFull verdict → - CENTURY8.2/10 · 7-day trial
A broad adaptive learning platform for guided, multi-subject exam preparation.
Visit CENTURYFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
Last updated · How we research and update






