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Head-to-head · Adaptive Learning Software

i-Ready Personalized Instruction vs CENTURY

  • Updated Nov 2026
  • Both researched from official sources
  • 1 check side by side
Higher score i-Ready Personalized Instruction #7 in Adaptive Learning Software 8.5/10 Pricing on request ✓ 0 of 6 features Visit i-Ready
CENTURY #9 in Adaptive Learning Software 8.2/10 7-day trial Free trial✓ 0 of 6 features Visit 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
  • Assessment-driven adaptive paths personalize reading and math lessons
  • English and Spanish instruction across reading and mathematics
  • Reporting spans students, classes, schools, and districts
  • 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
Cons
  • Requires i-Ready Assessment for student placement
  • Designed for school and district purchases, not home use
  • Web access is the listed platform
  • 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
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 →
  1. i-Ready Personalized InstructionAdaptive Learning Software 8.5Pricing on request
  2. CENTURYAdaptive Learning Software 8.27-day trial

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 →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

Last updated · How we research and update