AICompare

Duolingo Max vs Synthesis

Head-to-head comparison — updated April 2026

Duolingo Max

Duolingo Max

AI-powered language learning

Free plan$13.99/mo★ 4.7✓ Higher rated✓ Cheaper
Try Duolingo Max →
VS
Synthesis

Synthesis

AI math and science games for kids

Free plan$37/mo★ 4.7
Try Synthesis →

Our Verdict

Choose Duolingo Max for affordable, broad language learning with interactive AI features. Choose Synthesis for dedicated math and science instruction with live tutor support, despite higher cost.

Why Duolingo Max?

✓ 40 language options available
✓ Lower cost entry point at $13.99/month
✓ AI roleplay feature for conversational practice

Why Synthesis?

✓ Live tutoring sessions included
✓ Specialized focus on math and science problem-solving
✓ AI tutor paired with game-based learning approach

Feature Comparison

FeatureDuolingo MaxSynthesis
languages40✗
ai roleplay✓✗
gamification✓✗
explain answer✓✗
games✗✓
ai tutor✗✓
live sessions✗✓
problem solving✗✓

Duolingo Max Pricing

Free/mo
Paid from $13.99/mo
Full review →

Synthesis Pricing

Free/mo
Paid from $37/mo
Full review →

Which Should You Choose?

Both Duolingo Max and Synthesis are strong tools in the AI education space. Both are equally well-rated by users. Choose Duolingo Max if you value languages and ai roleplay. Choose Synthesis if you want to start free.