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Happy Numbers vs ReadTheory
People
Price
Published entry price
$1.21+per month
Free
Adaptive Learning Platforms
Annual estimate10 people, entry price
$15+
Flat rate
Free
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Adaptive Learning Platforms
Overview
Focus
Adaptive Learning Platforms
Interactive Content
Product
PreK-5 math curriculum with visual models and adaptive practice for conceptual understanding.
Adaptive reading comprehension practice for K-12 with adaptive questions and progress reports.
Headquarters
San Francisco, California
Toronto, Canada
Company size
11-50 employees
11-50 employees
Founded
2013
2012
Pricing details
Plan
Published entry price
Published rate
$1.21+ / month
Free
Billable seats
Flat rate
Free options
Free plan, Free trial
Free plan
Pricing source
Source updated
Nov 1, 2026
Oct 30, 2026